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Showing 1 - 100 of 479 results

Guide for Maintaining Pedestrian Facilities for Enhanced Safety Research Report

Huber, Tom ;

Luecke, Kevin

2013-10-01 | PDF

A Guide for Maintaining Pedestrian Facilities for Enhanced Safety provides guidance for maintaining pedestrian facilities with the primary goal of increasing safety and mobility. The Guide addresses the needs for pedestrian facility maintenance; common maintenance issues; inspection, accessibility, and compliance; maintenance measurers; funding; an ...

12/15/2025

Title : Guide for Maintaining Pedestrian Facilities for Enhanced Safety Research Report Creator(s) : Huber, Tom;Luecke, Kevin;Hintze, Michael;Coffman, Virginia;Toole, Jennifer;VanOosten, Matt; Corporate Creator(s) : Vanasse Hangen Brustlin, Inc. Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration. Office of Safety Contributor(s) : Redmon, Tamara Published Date : 2013-10-01 URL : https://rosap.ntl.bts.gov/view/dot/88193 Huber, Tom et al. (2013). Guide for Maintaining Pedestrian Facilities for Enhanced Safety Research Report. Huber, Tom et al. "Guide for Maintaining Pedestrian Facilities for Enhanced Safety Research Report" (2013) Huber, Tom et al. "Guide for Maintaining Pedestrian Facilities for Enhanced Safety Research Report" , 2013 Export RIS Citation Information. TY - Tech Report AU - Huber, Tom AU - Luecke, Kevin AU - Hintze, Michael AU - Coffman, Virginia AU - Toole, Jennifer AU - VanOosten, Matt A2 - Vanasse Hangen Brustlin, Inc. A3 - United States. Department of Transportation. Federal Highway Administration. Office of Safety A4 - Redmon, Tamara A4 - Redmon, Tamara AB - A Guide for Maintaining Pedestrian Facilities for Enhanced Safety provides guidance for maintaining pedestrian facilities with the primary goal of increasing safety and mobility. The Guide addresses the needs for pedestrian facility maintenance; common maintenance issues; inspection, accessibility, and compliance; maintenance measurers; funding; and construction techniques to reduce future maintenance. AN - dot:88193 KW - Pedestrian areas KW - Pedestrian safety KW - Maintenance KW - Crosswalks LA - English PB - United States. Department of Transportation. Federal Highway Administration. Office of Safety PY - 2013-10-01 TI - Guide for Maintaining Pedestrian Facilities for Enhanced Safety Research Report M3 - Tech Report N1 - United States N1 - DTFH61-10-D-00022 N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88193 ER -
Pedestrian Safety and ITS-Based Countermeasures Program for Reducing Pedestrian Fatalities, Injury Conflicts, and Other Surrogate Measures Draft Zone/Area-Wide Evaluation Technical Memorandum

Pecheux, Kelley ;

Bauer, J.

2009-01-30 | PDF

FHWA awarded three cooperative agreements to Las Vegas, NV; Miami-Dade, FL; and San Francisco, CA to demonstrate and evaluate the effectiveness of a combined pedestrian safety engineering and intelligent transportation systems (ITS)-based areawide countermeasures program for reducing pedestrian fatalities, injuries, conflicts, and other surrogate m ...

12/15/2025

Title : Pedestrian Safety and ITS-Based Countermeasures Program for Reducing Pedestrian Fatalities, Injury Conflicts, and Other Surrogate Measures Draft Zone/Area-Wide Evaluation Technical Memorandum Creator(s) : Pecheux, Kelley;Bauer, J.;McLeod, Peyton; Corporate Creator(s) : Science Applications International Corporation;Sprinkle Consulting, Inc.; Corporate Contributor(s) : United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office;United States. Department of Transportation. Federal Highway Administration; Contributor(s) : Redmon, Tamara;Rousseau, Gabriel;Oliver, Morris; Published Date : 2009-01-30 URL : https://rosap.ntl.bts.gov/view/dot/88192 Pecheux, Kelley et al. (2009). Pedestrian Safety and ITS-Based Countermeasures Program for Reducing Pedestrian Fatalities, Injury Conflicts, and Other Surrogate Measures Draft Zone/Area-Wide Evaluation Technical Memorandum. Pecheux, Kelley and Bauer, J. and McLeod, Peyton "Pedestrian Safety and ITS-Based Countermeasures Program for Reducing Pedestrian Fatalities, Injury Conflicts, and Other Surrogate Measures Draft Zone/Area-Wide Evaluation Technical Memorandum" (2009) Pecheux, Kelley et al. "Pedestrian Safety and ITS-Based Countermeasures Program for Reducing Pedestrian Fatalities, Injury Conflicts, and Other Surrogate Measures Draft Zone/Area-Wide Evaluation Technical Memorandum" , 2009 Export RIS Citation Information. TY - Tech Report AU - Pecheux, Kelley AU - Bauer, J. AU - McLeod, Peyton A2 - Science Applications International Corporation A2 - Sprinkle Consulting, Inc. A3 - United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office A3 - United States. Department of Transportation. Federal Highway Administration A4 - Redmon, Tamara A4 - Rousseau, Gabriel A4 - Oliver, Morris A4 - Redmon, Tamara;Rousseau, Gabe;Oliver, Morris AB - FHWA awarded three cooperative agreements to Las Vegas, NV; Miami-Dade, FL; and San Francisco, CA to demonstrate and evaluate the effectiveness of a combined pedestrian safety engineering and intelligent transportation systems (ITS)-based areawide countermeasures program for reducing pedestrian fatalities, injuries, conflicts, and other surrogate measures of safety. Each of the field teams conducted two-phase studies, which included self-evaluations of the pedestrian countermeasures that were ultimately selected and deployed. The objectives of the evaluations were to assess the safety and mobility impacts of the pedestrian countermeasures deployed through the collection and analysis of quantitative data. A wide range of data was collected. Data included safety surrogate measures of effectiveness (MOEs) (e.g., driver and pedestrian behavioral data), driver mobility MOEs (e.g., travel times and speeds along corridors), and pedestrian mobility MOEs (e.g., average pedestrian delays). FHWA also sponsored an independent national evaluation of the countermeasures as well as a cross-cutting study of the teams’ findings. This report presents and discusses the evaluation results for 18 pedestrian safety countermeasures (or combination of countermeasures) and contains cross-cutting analyses, where possible, of those countermeasures that were deployed by more than one of the field teams. Lessons learned by the field teams throughout the course of the project are also synthesized and presented herein. Overall, the implementation and evaluation of a comprehensive pedestrian safety program proved to be a very challenging undertaking for each of the three field teams involved. There were many lessons learned over the course of the more than 6year project, ranging from assembling and maintaining communications with a diverse set of project partners, to countermeasure selection and procurement, to the details associated with the successful application of particular countermeasures. The quantitative results are fairly mixed, and in some cases inconsistent. Nonetheless, there were many notable and promising findings from the field tests and evaluations that might be applied by other jurisdictions in their efforts to improve the safety of pedestrians. AN - dot:88192 KW - Pedestrian safety KW - Intelligent transportation systems KW - Traffic safety KW - Fatalities LA - English PB - United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office (ITS JPO) PY - 2009-01-30 TI - Pedestrian Safety and ITS-Based Countermeasures Program for Reducing Pedestrian Fatalities, Injury Conflicts, and Other Surrogate Measures Draft Zone/Area-Wide Evaluation Technical Memorandum M3 - Tech Report N1 - United States N1 - DTFH61-96-C-00098 N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88192 ER -
Assessment of Local Road Safety Funding, Training & Technical Assistance: Local Road Safety Checklists

United States. Department of Transportation. Federal Highway Administration

2013-01-01 | PDF

The following local road safety checklist is designed to provide State DOTs and LTAP centers with a list of questions to use to identify opportunities to enhance or initiate a local road safety program. While the list is not designed for local agencies, it may provide some questions local agencies may consider when faced with questions regarding th ...

12/15/2025

Title : Assessment of Local Road Safety Funding, Training & Technical Assistance: Local Road Safety Checklists Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 2013-01-01 Report Number : FHWA-SA-13-029 URL : https://rosap.ntl.bts.gov/view/dot/88191 United States. Department of Transportation. Federal Highway Administration (2013). Assessment of Local Road Safety Funding, Training & Technical Assistance: Local Road Safety Checklists. United States. Department of Transportation. Federal Highway Administration "Assessment of Local Road Safety Funding, Training & Technical Assistance: Local Road Safety Checklists" (2013) United States. Department of Transportation. Federal Highway Administration "Assessment of Local Road Safety Funding, Training & Technical Assistance: Local Road Safety Checklists" , 2013 Export RIS Citation Information. TY - Brief A2 - United States. Department of Transportation. Federal Highway Administration AB - The following local road safety checklist is designed to provide State DOTs and LTAP centers with a list of questions to use to identify opportunities to enhance or initiate a local road safety program. While the list is not designed for local agencies, it may provide some questions local agencies may consider when faced with questions regarding the resources and opportunities provided by State DOTs and LTAPs to assist with local road safety initiatives. The lists of questions and action steps have been developed based on the noteworthy practices and lessons learned by State DOTs. If the answer to any of the identified questions is "no," a list of potential action steps is provided to assist the State DOT or LTAP with building a stronger local road safety program. AN - dot:88191 KW - Highway safety KW - Technical assistance KW - Local transportation KW - State departments of transportation KW - Metropolitan planning organizations LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2013-01-01 SN - FHWA-SA-13-029 TI - Assessment of Local Road Safety Funding, Training & Technical Assistance: Local Road Safety Checklists M3 - Brief N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88191 ER -
Proven Safety Countermeasures: Funding Scenario Companion Guide

United States. Department of Transportation. Federal Highway Administration

2025-01-01 | PDF

Imagine your agency’s leadership gave you $100 million to improve safety in your community, jurisdiction, or State. How would you spend it? What combinations of improvements can you add to your system with that budget that maximizes the reduction in fatalities and serious injuries? The Federal Highway Administration (FHWA) developed a Proven Safety ...

12/15/2025

Title : Proven Safety Countermeasures: Funding Scenario Companion Guide Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 2025-01-01 Report Number : FHWA-SA-25-007 URL : https://rosap.ntl.bts.gov/view/dot/88190 United States. Department of Transportation. Federal Highway Administration (2025). Proven Safety Countermeasures: Funding Scenario Companion Guide. United States. Department of Transportation. Federal Highway Administration "Proven Safety Countermeasures: Funding Scenario Companion Guide" (2025) United States. Department of Transportation. Federal Highway Administration "Proven Safety Countermeasures: Funding Scenario Companion Guide" , 2025 Export RIS Citation Information. TY - Tech Report A2 - United States. Department of Transportation. Federal Highway Administration AB - Imagine your agency’s leadership gave you $100 million to improve safety in your community, jurisdiction, or State. How would you spend it? What combinations of improvements can you add to your system with that budget that maximizes the reduction in fatalities and serious injuries? The Federal Highway Administration (FHWA) developed a Proven Safety Countermeasure (PSC) Investment Tool, Companion Guide (this document), and Funding Scenario Briefing Templates. The tool, companion guide and templates can be used as a starting point and provide high-level planning insights for safety engineers, planners, and program managers to estimate how investments into certain countermeasures will affect safety performance on the system. The PSC Investment Tool is a spreadsheet that agencies can use to develop investment strategies for implementation of the FHWA PSCs. The Tool includes options for two economic metrics to optimize high-level planning decisions – benefit-cost ratio (BCR) and countermeasure score (CM Score). Using these metrics can enhance the confidence that a user is allocating their funds in a way that maximizes reductions in fatalities and serious injuries. This tool facilitates a high-level planning exercise, allowing an agency to estimate the return on investment for a certain countermeasure or combination of countermeasures, including lives saved, serious injuries prevented, and number of treatments which will be installed. Agencies can then take these initial insights and identify the most appropriate sites for each countermeasure, advancing these to the project development process. This Companion Guide provides an explanation of the methodologies used for investment prioritization and explains how to use the PSC Investment Template spreadsheet tool. Specifically, the Companion Guide includes a description of FHWA’s PSCs and how they are incorporated into the tool, how BCR and CM Score are calculated and applied in the Template, the Template’s data needs depending on whether an agency is using BCR or CM Score, the step-by-step process of using the Template, and potential applications of the Template for State and local agencies. Additionally, agencies can update the Funding Scenario Briefing Templates with agency-specific estimates to serve as documentation, which can be shared with leadership and other stakeholders who may be involved in decision-making. AN - dot:88190 KW - Highway safety KW - Traffic safety KW - Countermeasures KW - Financing LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2025-01-01 SN - FHWA-SA-25-007 TI - Proven Safety Countermeasures: Funding Scenario Companion Guide M3 - Tech Report N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88190 ER -
HSIP Funds Proven Safety Countermeasures

United States. Department of Transportation. Federal Highway Administration

2022-01-01 | PDF

FHWA has identified and promotes widespread use of 28 Proven Safety Countermeasures (PSCs), which can offer significant, measurable impacts as part of any agency’s data-driven, systemic approach to improving safety. Most PSCs are eligible for HSIP funding and can help State, local, and Tribal agencies take a Safe System Approach and achieve signifi ...

12/15/2025

Title : HSIP Funds Proven Safety Countermeasures Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 2022-01-01 Report Number : FHWA-SA-22-075 URL : https://rosap.ntl.bts.gov/view/dot/88189 United States. Department of Transportation. Federal Highway Administration (2022). HSIP Funds Proven Safety Countermeasures. United States. Department of Transportation. Federal Highway Administration "HSIP Funds Proven Safety Countermeasures" (2022) United States. Department of Transportation. Federal Highway Administration "HSIP Funds Proven Safety Countermeasures" , 2022 Export RIS Citation Information. TY - Brief A2 - United States. Department of Transportation. Federal Highway Administration AB - FHWA has identified and promotes widespread use of 28 Proven Safety Countermeasures (PSCs), which can offer significant, measurable impacts as part of any agency’s data-driven, systemic approach to improving safety. Most PSCs are eligible for HSIP funding and can help State, local, and Tribal agencies take a Safe System Approach and achieve significant, measurable safety improvements on their roadways. Agencies can widely implement these PSCs across all projects. These strategies are designed to enhance safety on all kinds of roads—from rural to urban, high-volume freeways to less-traveled county roads, signalized crossings to horizontal curves, and everything in between. Each PSC addresses at least one of four safety focus areas: speed management, intersections, roadway departures, or pedestrians and bicyclists. Crosscutting strategies address multiple areas. AN - dot:88189 KW - Highway safety KW - Traffic safety KW - Countermeasures KW - Financing LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2022-01-01 SN - FHWA-SA-22-075 TI - HSIP Funds Proven Safety Countermeasures M3 - Brief N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88189 ER -
Implementing the Proven Safety Countermeasures in Work Zones

VHB/Vanasse Hangen Brustlin, Inc.

2024-10-01 | PDF

The purpose of this guide is to provide information to State and local agencies on work zone fatalities in the U.S. and the application of Safe System Approach principles to work zone planning, design, operations, and management. This includes describing work zone applications of FHWA’s Proven Safety Countermeasures (PSCs), a collection of counterm ...

12/15/2025

Title : Implementing the Proven Safety Countermeasures in Work Zones Corporate Creator(s) : VHB/Vanasse Hangen Brustlin, Inc. Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration. Office of Safety Contributor(s) : Bobitz, Phillip Published Date : 2024-10-01 Report Number : FHWA-SA-24-014 URL : https://rosap.ntl.bts.gov/view/dot/88188 VHB/Vanasse Hangen Brustlin, Inc. (2024). Implementing the Proven Safety Countermeasures in Work Zones. VHB/Vanasse Hangen Brustlin, Inc. "Implementing the Proven Safety Countermeasures in Work Zones" (2024) VHB/Vanasse Hangen Brustlin, Inc. "Implementing the Proven Safety Countermeasures in Work Zones" , 2024 Export RIS Citation Information. TY - Tech Report A2 - VHB/Vanasse Hangen Brustlin, Inc. A3 - United States. Department of Transportation. Federal Highway Administration. Office of Safety A4 - Bobitz, Phillip A4 - Bobitz, Phil AB - The purpose of this guide is to provide information to State and local agencies on work zone fatalities in the U.S. and the application of Safe System Approach principles to work zone planning, design, operations, and management. This includes describing work zone applications of FHWA’s Proven Safety Countermeasures (PSCs), a collection of countermeasures and strategies effective in reducing roadway fatalities and serious injuries on U.S. highways and streets. Each of the PSCs can be implemented in work zones, depending on the individual work zone characteristics and the safety-related needs. The PSCs are generally associated with well-documented crash reductions under non-work zone conditions. The extent of examples of applications in work zones varied. There are opportunities to increase awareness of work zone applications through performing work zone specific safety performance studies, producing case studies, or otherwise documenting benefits and considerations. AN - dot:88188 ET - Final Report KW - Highway safety KW - Traffic safety KW - Countermeasures KW - Work zones KW - Work zone safety LA - English PB - United States. Department of Transportation. Federal Highway Administration. Office of Safety PY - 2024-10-01 SN - FHWA-SA-24-014 TI - Implementing the Proven Safety Countermeasures in Work Zones M3 - Tech Report N1 - United States N1 - DTFH61-05-D-00024 N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88188 ER -
Proven Safety Countermeasures in Rural Communities

United States. Department of Transportation. Federal Highway Administration

2024-01-01 | PDF

From 2017 to 2021, over 83,000 people died on rural roadways; this accounts for 43 percent of all roadway deaths despite only 20 percent of the U.S. population residing in these areas and only 31 percent of vehicle miles traveled occurring in rural areas. Furthermore, 43 percent of speed- related fatalities, 56 percent of roadway departure fataliti ...

12/15/2025

Title : Proven Safety Countermeasures in Rural Communities Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 2024-01-01 Report Number : FHWA-SA-24-005 URL : https://rosap.ntl.bts.gov/view/dot/88187 United States. Department of Transportation. Federal Highway Administration (2024). Proven Safety Countermeasures in Rural Communities. United States. Department of Transportation. Federal Highway Administration "Proven Safety Countermeasures in Rural Communities" (2024) United States. Department of Transportation. Federal Highway Administration "Proven Safety Countermeasures in Rural Communities" , 2024 Export RIS Citation Information. TY - Brief A2 - United States. Department of Transportation. Federal Highway Administration AB - From 2017 to 2021, over 83,000 people died on rural roadways; this accounts for 43 percent of all roadway deaths despite only 20 percent of the U.S. population residing in these areas and only 31 percent of vehicle miles traveled occurring in rural areas. Furthermore, 43 percent of speed- related fatalities, 56 percent of roadway departure fatalities (i.e., a crash that occurs after a vehicle crosses an edge line or center line or otherwise leaves the traveled way), and 26 percent of all intersection fatalities occurred in rural areas. Across the same time period, over 6,400 pedestrians and bicyclists were killed on rural roadways. The Federal Highway Administration (FHWA) has identified 28 Proven Safety Countermeasures (PSCs) to reduce fatal and serious injury crashes on roads nationwide (see figure 1). These PSCs are applicable for a range of contexts, road types, and governing agencies across the country. The PSCs can offer significant and measurable impacts across an agency’s rural road network as part of their approach to improving safety. The PSCs can support agencies with implementation of the Safe System Approach, which seeks to build and reinforce multiple layers of protection to both prevent crashes from happening and minimize the harm caused to those involved when crashes do occur. Implementing a Safe System Approach requires collaborative engagement among a diverse group of stakeholders to increase safety for all road users. Accordingly, agencies should consider how the PSCs and National Highway Traffic Safety Administration’s (NHTSA) Countermeasures that Work can create a system with redundancies in place to protect all road users. AN - dot:88187 KW - Highway safety KW - Traffic safety KW - Countermeasures KW - Rural highways LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2024-01-01 SN - FHWA-SA-24-005 TI - Proven Safety Countermeasures in Rural Communities M3 - Brief N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88187 ER -
Making Our Roads Safer: One Countermeasure at a Time

Albee, Matt ;

Bobitz, Phillip

2021-10-01 | PDF

The Proven Safety Countermeasure Initiative (PSCi) is a collection of 28 countermeasures and strategies effective in reducing roadway fatalities and serious injuries on our Nation’s highways. Transportation agencies are strongly encouraged to consider widespread implementation of PSCs to accelerate the achievement of local, State, and National safe ...

12/15/2025

Title : Making Our Roads Safer: One Countermeasure at a Time Creator(s) : Albee, Matt;Bobitz, Phillip; Corporate Creator(s) : VHB/Vanasse Hangen Brustlin, Inc. Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration. Office of Safety Published Date : 2021-10-01 Report Number : FHWA-SA-21-071 URL : https://rosap.ntl.bts.gov/view/dot/88186 Albee, Matt and Bobitz, Phillip (2021). Making Our Roads Safer: One Countermeasure at a Time. Albee, Matt and Bobitz, Phillip "Making Our Roads Safer: One Countermeasure at a Time" (2021) Albee, Matt and Bobitz, Phillip "Making Our Roads Safer: One Countermeasure at a Time" , 2021 Export RIS Citation Information. TY - Tech Report AU - Albee, Matt AU - Bobitz, Phillip A2 - VHB/Vanasse Hangen Brustlin, Inc. A3 - United States. Department of Transportation. Federal Highway Administration. Office of Safety A4 - Bobitz, Phillip AB - The Proven Safety Countermeasure Initiative (PSCi) is a collection of 28 countermeasures and strategies effective in reducing roadway fatalities and serious injuries on our Nation’s highways. Transportation agencies are strongly encouraged to consider widespread implementation of PSCs to accelerate the achievement of local, State, and National safety goals. This booklet provides 1-page handouts for all 28PSCs, broken into the focus areas of speed management, roadway departure, intersections, pedestrians/bicyclists, and crosscutting for countermeasures that apply across categories. AN - dot:88186 ET - Final Report KW - Highway safety KW - Traffic safety KW - Countermeasures KW - Traffic speed KW - Ran off road crashes LA - English PB - United States. Department of Transportation. Federal Highway Administration. Office of Safety PY - 2021-10-01 SN - FHWA-SA-21-071 TI - Making Our Roads Safer: One Countermeasure at a Time M3 - Tech Report N1 - United States N1 - DTFH6116D00040693JJ320F000262 N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88186 ER -
Making Our Roads Safer One Countermeasure at a Time [2021]

United States. Department of Transportation. Federal Highway Administration

2021-01-01 | PDF

The FHWA has identified and is promoting widespread use of a set of 28 Proven Safety Countermeasures that can offer significant, measurable impacts as part of any agency’s data-driven, systemic approach to improving safety. These strategies are designed to enhance safety on all kinds of roads—from rural to urban, from high-volume freeways to less t ...

12/15/2025

Title : Making Our Roads Safer One Countermeasure at a Time [2021] Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 2021-01-01 Report Number : FHWA-SA-21-082 URL : https://rosap.ntl.bts.gov/view/dot/88185 United States. Department of Transportation. Federal Highway Administration (2021). Making Our Roads Safer One Countermeasure at a Time [2021]. United States. Department of Transportation. Federal Highway Administration "Making Our Roads Safer One Countermeasure at a Time [2021]" (2021) United States. Department of Transportation. Federal Highway Administration "Making Our Roads Safer One Countermeasure at a Time [2021]" , 2021 Export RIS Citation Information. TY - Brief A2 - United States. Department of Transportation. Federal Highway Administration AB - The FHWA has identified and is promoting widespread use of a set of 28 Proven Safety Countermeasures that can offer significant, measurable impacts as part of any agency’s data-driven, systemic approach to improving safety. These strategies are designed to enhance safety on all kinds of roads—from rural to urban, from high-volume freeways to less traveled two-lane State and county roads, from signalized crossings to horizontal curves, and everything in between. Each countermeasure addresses speed management, intersections, roadway departures, or pedestrians/ bicyclists— along with crosscutting strategies that address all four safety focus areas. AN - dot:88185 KW - Highway safety KW - Traffic safety KW - Countermeasures KW - Speed control KW - Intersections LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2021-01-01 SN - FHWA-SA-21-082 TI - Making Our Roads Safer One Countermeasure at a Time [2021] M3 - Brief N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88185 ER -
Comparing Merging Behaviors of Drivers with Vehicles Equipped with Level 3 Automation and Connected Messaging when Merging in a Mixed Vehicle Fleet Environment of Various Traffic Densities

Calvo, Jose

;

Svancara, Austin

2025-11-01 | PDF

As the number of vehicles equipped with automated driving systems (ADS) that are using cooperative driving automation (CDA) technology to communicate safety messages are anticipated to increase in the future, maintaining the safety and efficient operation of roadways is important. ADS-equipped vehicles and CDA technology need to operate smoothly an ...

12/15/2025

Title : Comparing Merging Behaviors of Drivers with Vehicles Equipped with Level 3 Automation and Connected Messaging when Merging in a Mixed Vehicle Fleet Environment of Various Traffic Densities Creator(s) : Calvo, Jose;Svancara, Austin;Chao, Szu-Fu;Lee, Yi-Ching;Jannat, Mafruhatul;Arnold, Michelle; Corporate Creator(s) : Leidos, Inc. Corporate Contributor(s) : United States. Federal Highway Administration. Office of Safety and Operations Research and Development Published Date : 2025-11-01 Report Number : FHWA-HRT-25-051 URL : https://rosap.ntl.bts.gov/view/dot/88184 Calvo, Jose et al. (2025). Comparing Merging Behaviors of Drivers with Vehicles Equipped with Level 3 Automation and Connected Messaging when Merging in a Mixed Vehicle Fleet Environment of Various Traffic Densities. Calvo, Jose et al. "Comparing Merging Behaviors of Drivers with Vehicles Equipped with Level 3 Automation and Connected Messaging when Merging in a Mixed Vehicle Fleet Environment of Various Traffic Densities" (2025) Calvo, Jose et al. "Comparing Merging Behaviors of Drivers with Vehicles Equipped with Level 3 Automation and Connected Messaging when Merging in a Mixed Vehicle Fleet Environment of Various Traffic Densities" , 2025 Export RIS Citation Information. TY - Tech Report AU - Calvo, Jose AU - Svancara, Austin AU - Chao, Szu-Fu AU - Lee, Yi-Ching AU - Jannat, Mafruhatul AU - Arnold, Michelle A2 - Leidos, Inc. A3 - United States. Federal Highway Administration. Office of Safety and Operations Research and Development A4 - Arnold, Michelle AB - As the number of vehicles equipped with automated driving systems (ADS) that are using cooperative driving automation (CDA) technology to communicate safety messages are anticipated to increase in the future, maintaining the safety and efficient operation of roadways is important. ADS-equipped vehicles and CDA technology need to operate smoothly and safely with other vehicles under all typical driving scenarios, especially scenarios that are common but high risk, such as lane changes and merging. Merging onto highways from onramp locations is a safety-critical scenario that has the potential to create traffic bottlenecks. The current study used a driving simulator to assess the potential of ADS and CDA technology to increase the safety and efficiency of onramp merge scenarios. The research team manipulated automation levels and communication between vehicles, in addition to platoon size. The researchers measured driver gap acceptance, braking, and trust in the ADSs and CDA systems. The results of this study show some evidence that when merging, some driver safety behaviors may be influenced by the use of L3 automation and by communication between vehicles, especially when merging with increased platoon sizes. However, subjective measures indicated that participants may have been unclear about what features were active while in the simulation, and some incongruity occurred between the participants’ expectations and how the vehicle behaved. The results of this research can be used to provide insights into how willing drivers may be to accept this kind of technology and what their level of comfort could be with using these new technologies. AN - dot:88184 ET - Final Report KW - Merging area KW - Automated vehicle control KW - Vehicle mix KW - Traffic density LA - English PB - United States. Federal Highway Administration. Office of Safety and Operations Research and Development PY - 2025-11-01 SN - FHWA-HRT-25-051 TI - Comparing Merging Behaviors of Drivers with Vehicles Equipped with Level 3 Automation and Connected Messaging when Merging in a Mixed Vehicle Fleet Environment of Various Traffic Densities M3 - Tech Report N1 - United States N1 - 693JJ319D000012 N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88184 ER -
Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 10, Data Complete Through 12/5/2025

United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information

2025-12-10 | Special Issue - Weekly Motor Fuel Report | PDF

The Gasoline Product Supplied report offers insight on weekly fluctuation of the gasoline product supply, which is an important part of any analysis of construction trends, materials and operating costs associated with highway repair and construction, and changes in traffic volume. These data come directly from the Energy Information Administration ...

12/15/2025

Title : Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 10, Data Complete Through 12/5/2025 Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Published Date : 2025-12-10 Series : Special Issue - Weekly Motor Fuel Report URL : https://rosap.ntl.bts.gov/view/dot/88183 United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2025). Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 10, Data Complete Through 12/5/2025. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information "Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 10, Data Complete Through 12/5/2025" (2025) United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information "Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 10, Data Complete Through 12/5/2025" , 2025 Export RIS Citation Information. TY - Statistical Report A2 - United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information AB - The Gasoline Product Supplied report offers insight on weekly fluctuation of the gasoline product supply, which is an important part of any analysis of construction trends, materials and operating costs associated with highway repair and construction, and changes in traffic volume. These data come directly from the Energy Information Administration (EIA) website. The EIA publishes the average daily amount of gasoline supplied in barrels, which HPPI converts to an average number of gallons of gasoline per week. AN - dot:88183 KW - Fuel consumption KW - Gasoline KW - Supply KW - Traffic volume KW - Data collection KW - Data analysis LA - English PB - United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information PY - 2025-12-10 T2 - Special Issue - Weekly Motor Fuel Report TI - Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 10, Data Complete Through 12/5/2025 M3 - Statistical Report N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88183 ER -
SEAHIVE® Solutions to Mitigate Bridge Scour – Phase II

Naznni, Antonio ;

Barbarigos, Landolf

2025-10-15 | PDF

This study investigates the structural performance of internally prestressed concrete (PC) SEAHIVE® units as part of an ongoing effort to mitigate bridge scour and improve coastal resilience with green-gray technologies. Unlike Phase I of this research, which focused on wet-cast and externally wrapped dry-cast concrete SEAHIVE® units tested under p ...

12/15/2025

Title : SEAHIVE® Solutions to Mitigate Bridge Scour – Phase II Creator(s) : Naznni, Antonio;Barbarigos, Landolf; Corporate Creator(s) : University of Miami Corporate Contributor(s) : CREATE - Coastal REsearch And Transportation Education;United States. Department of Transportation. University Transportation Centers (UTC) Program;United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology; Published Date : 2025-10-15 Report Number : 2301-3 URL : https://rosap.ntl.bts.gov/view/dot/88182 Naznni, Antonio and Barbarigos, Landolf (2025). SEAHIVE® Solutions to Mitigate Bridge Scour – Phase II. Naznni, Antonio and Barbarigos, Landolf "SEAHIVE® Solutions to Mitigate Bridge Scour – Phase II" (2025) Naznni, Antonio and Barbarigos, Landolf "SEAHIVE® Solutions to Mitigate Bridge Scour – Phase II" , 2025 Export RIS Citation Information. TY - Tech Report AU - Naznni, Antonio AU - Barbarigos, Landolf A2 - University of Miami A3 - CREATE - Coastal REsearch And Transportation Education A3 - United States. Department of Transportation. University Transportation Centers (UTC) Program A3 - United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology AB - This study investigates the structural performance of internally prestressed concrete (PC) SEAHIVE® units as part of an ongoing effort to mitigate bridge scour and improve coastal resilience with green-gray technologies. Unlike Phase I of this research, which focused on wet-cast and externally wrapped dry-cast concrete SEAHIVE® units tested under pure compression and four-point bending, the present work introduces internal pre-tensioned GFRP reinforcement to improve mechanical characteristics and serviceability by delaying crack formation and decreasing their width. PC SEAHIVE® units were designed and fabricated with six GFRP bars to provide adequate prestress. The experimental program comprised standardized material characterization and full-size structural testing, including four-point bending of perforated SEAHIVE® elements. Results demonstrated that pretensioning effectively increased the cracking load, delayed diagonal cracking, and reduced crack widths, particularly at midspan where prestress transfer was fully developed. Finite element simulations using Abaqus Concrete Damaged Plasticity (CDP) models further validated the observed behaviors and were able to capture flexure–shear cracking patterns while highlighting the influence of perforations. AN - dot:88182 ET - Final Project Report 6/01/2024-05/31/2025 KW - Bridge design KW - Bridge foundations KW - Concrete KW - Erosion KW - Glass fiber reinforced concrete KW - Scour LA - English PB - CREATE - Coastal REsearch And Transportation Education PY - 2025-10-15 SN - 2301-3 TI - SEAHIVE® Solutions to Mitigate Bridge Scour – Phase II M3 - Tech Report N1 - United States N1 - 69A3552348330 UR - https://rosap.ntl.bts.gov/view/dot/88182 ER -
CREATE: University of Miami’s National Summer Transportation Institute (UM NSTI)

Wenke, Thomas ;

Ghahremaninezhad, Ali

2025-08-31 | PDF

The University of Miami hosted the NSTI program to encourage the younger generations into the STEM disciplines and coastal transportation infrastructure. Activities included lectures, laboratory hands-on activities, and fun competitions related to coastal transportation infrastructure. Participants engaged in science rich activities, and develop cr ...

12/15/2025

Title : CREATE: University of Miami’s National Summer Transportation Institute (UM NSTI) Creator(s) : Wenke, Thomas;Ghahremaninezhad, Ali; Corporate Creator(s) : University of Miami Corporate Contributor(s) : CREATE - Coastal REsearch And Transportation Education;United States. Department of Transportation. University Transportation Centers (UTC) Program;United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology; Published Date : 2025-08-31 Report Number : 2301-4 URL : https://rosap.ntl.bts.gov/view/dot/88181 Wenke, Thomas and Ghahremaninezhad, Ali (2025). CREATE: University of Miami’s National Summer Transportation Institute (UM NSTI). Wenke, Thomas and Ghahremaninezhad, Ali "CREATE: University of Miami’s National Summer Transportation Institute (UM NSTI)" (2025) Wenke, Thomas and Ghahremaninezhad, Ali "CREATE: University of Miami’s National Summer Transportation Institute (UM NSTI)" , 2025 Export RIS Citation Information. TY - Tech Report AU - Wenke, Thomas AU - Ghahremaninezhad, Ali A2 - University of Miami A3 - CREATE - Coastal REsearch And Transportation Education A3 - United States. Department of Transportation. University Transportation Centers (UTC) Program A3 - United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology AB - The University of Miami hosted the NSTI program to encourage the younger generations into the STEM disciplines and coastal transportation infrastructure. Activities included lectures, laboratory hands-on activities, and fun competitions related to coastal transportation infrastructure. Participants engaged in science rich activities, and develop critical thinking, teamwork, and career development skills. AN - dot:88181 ET - Final Project Report 6/01/24-5/31/25 KW - Climate change KW - Coastal engineering KW - Education and training KW - Erosion KW - Floods KW - STEM LA - English PB - CREATE - Coastal REsearch And Transportation Education PY - 2025-08-31 SN - 2301-4 TI - CREATE: University of Miami’s National Summer Transportation Institute (UM NSTI) M3 - Tech Report N1 - United States N1 - 69A3552348330 UR - https://rosap.ntl.bts.gov/view/dot/88181 ER -
Deep Learning Based Automated Data Collection Technology for Coastal Highway Pavements

Wang, Feng

;

Sanchez, Carlos

2025-08-31 | PDF

With the recent federal legislation approval of the funding of the United States’s infrastructure, investment into transportation research has prompted the implementation of new technologies to advance the data collection and evaluation methods for transportation asset management. As departments of transportation (DOTs) upgrade their equipment to u ...

12/15/2025

Title : Deep Learning Based Automated Data Collection Technology for Coastal Highway Pavements Creator(s) : Wang, Feng;Sanchez, Carlos;Bai, Yongsheng;Luo, Xiaohua; Corporate Creator(s) : Texas State University--San Marcos Corporate Contributor(s) : CREATE - Coastal REsearch And Transportation Education;United States. Department of Transportation. University Transportation Centers (UTC) Program;United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology; Published Date : 2025-08-31 Report Number : 2301-6 URL : https://rosap.ntl.bts.gov/view/dot/88180 Wang, Feng et al. (2025). Deep Learning Based Automated Data Collection Technology for Coastal Highway Pavements. Wang, Feng et al. "Deep Learning Based Automated Data Collection Technology for Coastal Highway Pavements" (2025) Wang, Feng et al. "Deep Learning Based Automated Data Collection Technology for Coastal Highway Pavements" , 2025 Export RIS Citation Information. TY - Tech Report AU - Wang, Feng AU - Sanchez, Carlos AU - Bai, Yongsheng AU - Luo, Xiaohua A2 - Texas State University--San Marcos A3 - CREATE - Coastal REsearch And Transportation Education A3 - United States. Department of Transportation. University Transportation Centers (UTC) Program A3 - United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology AB - With the recent federal legislation approval of the funding of the United States’s infrastructure, investment into transportation research has prompted the implementation of new technologies to advance the data collection and evaluation methods for transportation asset management. As departments of transportation (DOTs) upgrade their equipment to utilize these technologies, a higher standard for the quality of highway infrastructure across the states has raised concerns for an improvement in traffic safety and efficient maintenance and rehabilitation of the roadways. This is essential for pavements in locations where surface distresses are developed at a higher rate, such as coastal regions due to rapid development and extreme weather phenomena being more frequent and intensive. State DOTs have adopted the use of automated pavement data collection and condition evaluation. However, the inadequate accuracy of the existing automated technology has led to erroneous distress measurements and inconsistent manual intervention approaches for pavement engineers to assess the surface damage of the pavements after data collection to establish more reliable analyses of the performances. With the recent advancements in artificial intelligence and deep learning, progress towards more accurate and efficient detection algorithms has provided possibilities of better data quality to monitor the surface condition of the pavements. Due to these new technologies, 2D/3D pavement images can be analyzed with improved accuracy for more efficient detection of pavement distresses such as cracks caused by various factors like environment, weather, age, and traffic loading. In this study, 2D/3D images were collected from pavements in the coastal regions in the states of Louisiana, Mississippi, and Texas. AN - dot:88180 ET - Final Project Report 09/01/2023-8/31/2025 KW - Algorithms KW - Artificial intelligence KW - Automatic data collection systems KW - Coasts KW - Machine learning KW - Pavement maintenance KW - Data files LA - English PB - CREATE - Coastal REsearch And Transportation Education PY - 2025-08-31 SN - 2301-6 TI - Deep Learning Based Automated Data Collection Technology for Coastal Highway Pavements M3 - Tech Report N1 - United States N1 - 69A3552348330 UR - https://rosap.ntl.bts.gov/view/dot/88180 ER -
Composite Mangroves for Reducing Soil Erosion near Transportation Infrastructure

Kumar, Ayush

;

Puppala, Anand J.

2025-08-31 | PDF

The intensification of coastal stressors and rising coastal urbanization necessitate innovative alternatives to conventional hard engineering structures for coastal embankment protection. While mangrove ecosystems demonstrate proven capabilities for attenuating wave energy, their effectiveness in protecting coastal transportation infrastructure rem ...

12/15/2025

Title : Composite Mangroves for Reducing Soil Erosion near Transportation Infrastructure Creator(s) : Kumar, Ayush;Puppala, Anand J.; Corporate Creator(s) : Texas A&M Transportation Institute Corporate Contributor(s) : CREATE - Coastal REsearch And Transportation Education;United States. Department of Transportation. University Transportation Centers (UTC) Program;United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology; Published Date : 2025-08-31 Report Number : 2301-5 URL : https://rosap.ntl.bts.gov/view/dot/88179 Kumar, Ayush and Puppala, Anand J. (2025). Composite Mangroves for Reducing Soil Erosion near Transportation Infrastructure. Kumar, Ayush and Puppala, Anand J. "Composite Mangroves for Reducing Soil Erosion near Transportation Infrastructure" (2025) Kumar, Ayush and Puppala, Anand J. "Composite Mangroves for Reducing Soil Erosion near Transportation Infrastructure" , 2025 Export RIS Citation Information. TY - Tech Report AU - Kumar, Ayush AU - Puppala, Anand J. A2 - Texas A&M Transportation Institute A3 - CREATE - Coastal REsearch And Transportation Education A3 - United States. Department of Transportation. University Transportation Centers (UTC) Program A3 - United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology AB - The intensification of coastal stressors and rising coastal urbanization necessitate innovative alternatives to conventional hard engineering structures for coastal embankment protection. While mangrove ecosystems demonstrate proven capabilities for attenuating wave energy, their effectiveness in protecting coastal transportation infrastructure remains inadequately understood. This study evaluated nature-inspired artificial mangrove systems for mitigating incoming wave energy and reducing coastal embankment erosion through laboratory-scale experimentation and numerical modeling. A comparative investigation between control and mangrove-protected embankment configurations under identical hydrodynamic loading was performed in a wave flume facility at Texas A&M University, Galveston. Artificial mangroves replicated characteristics of Rhizophora mangle (red mangrove) at a 1:15 geometric scale, incorporating trunk-root systems in staggered arrangements. Progressive wave cycles simulated storm intensification by increasing wave parameters. Free surface elevation was monitored using capacitance-type wave gauges, while laser scanning systems measured the temporal evolution of the embankment profile. AN - dot:88179 ET - Final Project Report 9/01/2023-8/31/2025 KW - Data files KW - Coast and river protective works KW - Coastal engineering KW - Composite structures KW - Erosion control LA - English PB - CREATE - Coastal REsearch And Transportation Education PY - 2025-08-31 SN - 2301-5 TI - Composite Mangroves for Reducing Soil Erosion near Transportation Infrastructure M3 - Tech Report N1 - United States N1 - 69A3552348330 UR - https://rosap.ntl.bts.gov/view/dot/88179 ER -
Composite Mangroves for Reducing Soil Erosion near Transportation Infrastructure [supporting dataset]

Kumar, Ayush

;

Puppala, Anand J.

2025-09-08 | ZIP

This dataset consists of raw data for the wave gauge and the eroded profile for the test conducted at TAMU Galveston.The total size of the ZIP file is 81,827 KB

12/15/2025

Supporting Files

Title : Composite Mangroves for Reducing Soil Erosion near Transportation Infrastructure [supporting dataset] Creator(s) : Kumar, Ayush;Puppala, Anand J.; Corporate Creator(s) : Texas A&M Transportation Institute Corporate Contributor(s) : CREATE - Coastal REsearch And Transportation Education;United States. Department of Transportation. University Transportation Centers (UTC) Program;United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology; Published Date : 2025-09-08 DOI : https://doi.org/10.5281/zenodo.17079709 Kumar, Ayush and Puppala, Anand J. (2025). Composite Mangroves for Reducing Soil Erosion near Transportation Infrastructure [supporting dataset]. https://doi.org/10.5281/zenodo.17079709 Kumar, Ayush and Puppala, Anand J. "Composite Mangroves for Reducing Soil Erosion near Transportation Infrastructure [supporting dataset]" (2025), https://doi.org/10.5281/zenodo.17079709 Kumar, Ayush and Puppala, Anand J. "Composite Mangroves for Reducing Soil Erosion near Transportation Infrastructure [supporting dataset]" , 2025, https://doi.org/10.5281/zenodo.17079709 Export RIS Citation Information. TY - Dataset AU - Kumar, Ayush AU - Puppala, Anand J. A2 - Texas A&M Transportation Institute A3 - CREATE - Coastal REsearch And Transportation Education A3 - United States. Department of Transportation. University Transportation Centers (UTC) Program A3 - United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology AB - This dataset consists of raw data for the wave gauge and the eroded profile for the test conducted at TAMU Galveston. AB - The total size of the ZIP file is 81,827 KB AB - This item is made available under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) license https://creativecommons.org/licenses/by/4.0/. Use the following citation: Kumar, A., & Puppala, A. (2025). CREATE UTC - Composite Mangroves for Reducing Soil Erosion near Transportation Infrastructure [Data set]. Zenodo. https://doi.org/10.5281/zenodo.17079709 AN - dot:88178 DO - https://doi.org/10.5281/zenodo.17079709 KW - Data files KW - Coast and river protective works KW - Coastal engineering KW - Composite structures KW - Erosion control LA - English PB - CREATE - Coastal REsearch And Transportation Education PY - 2025-09-08 TI - Composite Mangroves for Reducing Soil Erosion near Transportation Infrastructure [supporting dataset] M3 - Dataset N1 - United States N1 - 69A3552348330 N1 - Open Access; https://creativecommons.org/licenses/by/4.0/ UR - https://rosap.ntl.bts.gov/view/dot/88178 ER -
Bio-waste Materials as Supplementary Cementitious Materials for Coastal Concrete Applications

Chong, Beng Wei

;

Majumder, Amlan

2025-08-31 | PDF

This study explores the use of agricultural bio-waste such as eggshell powder and sugarcane bagasse ash (SCBA) as sustainable alternatives to cement production. Eggshell powder was evaluated as partial substitutes for limestone filler with and without heat treatment. SCBA, a silica-rich byproduct of sugar production, was investigated for its potent ...

12/15/2025

Title : Bio-waste Materials as Supplementary Cementitious Materials for Coastal Concrete Applications Creator(s) : Chong, Beng Wei;Majumder, Amlan;Shi, Xijun; Corporate Creator(s) : Texas State University--San Marcos Corporate Contributor(s) : CREATE - Coastal REsearch And Transportation Education;United States. Department of Transportation. University Transportation Centers (UTC) Program;United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology; Published Date : 2025-08-31 Report Number : 2301-7 URL : https://rosap.ntl.bts.gov/view/dot/88177 Chong, Beng Wei et al. (2025). Bio-waste Materials as Supplementary Cementitious Materials for Coastal Concrete Applications. Chong, Beng Wei and Majumder, Amlan and Shi, Xijun "Bio-waste Materials as Supplementary Cementitious Materials for Coastal Concrete Applications" (2025) Chong, Beng Wei et al. "Bio-waste Materials as Supplementary Cementitious Materials for Coastal Concrete Applications" , 2025 Export RIS Citation Information. TY - Tech Report AU - Chong, Beng Wei AU - Majumder, Amlan AU - Shi, Xijun A2 - Texas State University--San Marcos A3 - CREATE - Coastal REsearch And Transportation Education A3 - United States. Department of Transportation. University Transportation Centers (UTC) Program A3 - United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology AB - This study explores the use of agricultural bio-waste such as eggshell powder and sugarcane bagasse ash (SCBA) as sustainable alternatives to cement production. Eggshell powder was evaluated as partial substitutes for limestone filler with and without heat treatment. SCBA, a silica-rich byproduct of sugar production, was investigated for its potential as a supplementary cementitious material (SCM) akin to Class F fly ash. Experimental methods included material characterization using SEM, XRD, XRF, TGA, and LOI testing, as well as evaluations of fresh and hardened concrete properties. Results demonstrated that treated eggshell and SCBA samples exhibited favorable morphological and chemical properties for use in blended cement systems. Eggshell powder can be used as an alternative to limestone at lower proportions of inclusion; However, heat treatment is recommended to denature the organic content from eggshell membrane at high proportion of inclusion. Meanwhile, SCBA is a pozzolanic material that can be blended with cement for optimal strength and durability. The findings support the feasibility of incorporating bio-waste into concrete formulations, contributing to sustainability efforts in construction and transportation infrastructure. AN - dot:88177 ET - Final Project Report 9/01/2023-5/31/2025 KW - Biological materials KW - Portland cement concrete KW - Waste products (Materials) KW - eggshell KW - sugarcane bagasse ash KW - fresh properties KW - hardened properties LA - English PB - CREATE - Coastal REsearch And Transportation Education PY - 2025-08-31 SN - 2301-7 TI - Bio-waste Materials as Supplementary Cementitious Materials for Coastal Concrete Applications M3 - Tech Report N1 - United States N1 - 69A3552348330 UR - https://rosap.ntl.bts.gov/view/dot/88177 ER -
Raw Documents of Data (Eggshell Project) [supporting data]

Chong, Beng Wei

;

Majumder, Amlan

2025-08-29 | ZIP

Raw documents of data for eggshell project.The total size of the ZIP file is 87,274 KB.

12/15/2025

Supporting Files

Title : Raw Documents of Data (Eggshell Project) [supporting data] Creator(s) : Chong, Beng Wei;Majumder, Amlan;Shi, Xijun; Corporate Creator(s) : Texas State University--San Marcos Corporate Contributor(s) : CREATE - Coastal REsearch And Transportation Education Published Date : 2025-08-29 DOI : https://doi.org/10.5281/zenodo.16995777 Chong, Beng Wei et al. (2025). Raw Documents of Data (Eggshell Project) [supporting data]. https://doi.org/10.5281/zenodo.16995777 Chong, Beng Wei and Majumder, Amlan and Shi, Xijun "Raw Documents of Data (Eggshell Project) [supporting data]" (2025), https://doi.org/10.5281/zenodo.16995777 Chong, Beng Wei et al. "Raw Documents of Data (Eggshell Project) [supporting data]" , 2025, https://doi.org/10.5281/zenodo.16995777 Export RIS Citation Information. TY - Dataset AU - Chong, Beng Wei AU - Majumder, Amlan AU - Shi, Xijun A2 - Texas State University--San Marcos A3 - CREATE - Coastal REsearch And Transportation Education AB - Raw documents of data for eggshell project. AB - The total size of the ZIP file is 87,274 KB. AB - This item is made available under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) license https://creativecommons.org/licenses/by/4.0/. Use the following citation: Chong, B. W. (2025). Raw documents of data (eggshell project) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.16995777 AN - dot:88176 DO - https://doi.org/10.5281/zenodo.16995777 KW - Biological materials KW - Portland cement concrete KW - Waste products (Materials) KW - Data files LA - English PB - CREATE - Coastal REsearch And Transportation Education PY - 2025-08-29 TI - Raw Documents of Data (Eggshell Project) [supporting data] M3 - Dataset N1 - United States N1 - 69A3552348330 N1 - Open Access; https://creativecommons.org/licenses/by/4.0/ UR - https://rosap.ntl.bts.gov/view/dot/88176 ER -
Data for: Deep Learning Based Automated Data Collection Technology for Coastal Highway Pavements [supporting data]

Wang, Feng

;

Sanchez, Carlos

2025-09-11 | DOC

Tables and graphs for deep learning model performance not used in the Coastal REsearch And Transportation Education (CREATE) Report for Deep Learning Based Automated Data Collection Technology for Coastal Highway Pavements. These include performance metrics such as precision, recall, and mean average precision at 50% overlap (mAP50) for each model ...

12/15/2025

Supporting Files

Title : Data for: Deep Learning Based Automated Data Collection Technology for Coastal Highway Pavements [supporting data] Creator(s) : Wang, Feng;Sanchez, Carlos;Bai, Yongsheng;Luo, Xiaohua; Corporate Creator(s) : Texas State University--San Marcos Corporate Contributor(s) : CREATE - Coastal REsearch And Transportation Education Published Date : 2025-09-11 DOI : https://doi.org/10.5281/zenodo.17095715 Wang, Feng et al. (2025). Data for: Deep Learning Based Automated Data Collection Technology for Coastal Highway Pavements [supporting data]. https://doi.org/10.5281/zenodo.17095715 Wang, Feng et al. "Data for: Deep Learning Based Automated Data Collection Technology for Coastal Highway Pavements [supporting data]" (2025), https://doi.org/10.5281/zenodo.17095715 Wang, Feng et al. "Data for: Deep Learning Based Automated Data Collection Technology for Coastal Highway Pavements [supporting data]" , 2025, https://doi.org/10.5281/zenodo.17095715 Export RIS Citation Information. TY - Dataset AU - Wang, Feng AU - Sanchez, Carlos AU - Bai, Yongsheng AU - Luo, Xiaohua A2 - Texas State University--San Marcos A3 - CREATE - Coastal REsearch And Transportation Education AB - Tables and graphs for deep learning model performance not used in the Coastal REsearch And Transportation Education (CREATE) Report for Deep Learning Based Automated Data Collection Technology for Coastal Highway Pavements. These include performance metrics such as precision, recall, and mean average precision at 50% overlap (mAP50) for each model used in the study along with detection rates for each item on the class list. AB - This item is made available under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) license https://creativecommons.org/licenses/by/4.0/. Use the following citation: Wang, F., Bai, Y., & Sanchez, C. (2025). Data for: Deep Learning Based Automated Data Collection Technology for Coastal Highway Pavements. Zenodo. https://doi.org/10.5281/zenodo.17095715 AN - dot:88175 DO - https://doi.org/10.5281/zenodo.17095715 KW - Algorithms KW - Artificial intelligence KW - Automatic data collection systems KW - Coasts KW - Machine learning KW - Pavement maintenance KW - Data files LA - English PB - CREATE - Coastal REsearch And Transportation Education PY - 2025-09-11 TI - Data for: Deep Learning Based Automated Data Collection Technology for Coastal Highway Pavements [supporting data] M3 - Dataset N1 - United States N1 - 69A3552348330 N1 - Open Access; https://creativecommons.org/licenses/by/4.0/ UR - https://rosap.ntl.bts.gov/view/dot/88175 ER -
Alternatives to Motor Fuel Taxes for State DOT Funding [Technical Summary]

Dunn, Travis P

2025-11-01 | PDF

For decades, motor fuel taxes have served as the primary source of revenue for surface transportation infrastructure at both the federal and state levels in the United States. However, the reliability of this funding mechanism is challenged by declining fuel consumption, driven by advancements in vehicle engine efficiency and the growing consumer s ...

12/15/2025

Title : Alternatives to Motor Fuel Taxes for State DOT Funding [Technical Summary] Creator(s) : Dunn, Travis P Corporate Creator(s) : Louisiana Transportation Research Center Published Date : 2025-11-01 Report Number : LTRC Report 720 URL : https://rosap.ntl.bts.gov/view/dot/88174 Dunn, Travis P (2025). Alternatives to Motor Fuel Taxes for State DOT Funding [Technical Summary]. Dunn, Travis P "Alternatives to Motor Fuel Taxes for State DOT Funding [Technical Summary]" (2025) Dunn, Travis P "Alternatives to Motor Fuel Taxes for State DOT Funding [Technical Summary]" , 2025 Export RIS Citation Information. TY - Brief AU - Dunn, Travis P A2 - Louisiana Transportation Research Center AB - For decades, motor fuel taxes have served as the primary source of revenue for surface transportation infrastructure at both the federal and state levels in the United States. However, the reliability of this funding mechanism is challenged by declining fuel consumption, driven by advancements in vehicle engine efficiency and the growing consumer shift toward alternative fuel and electric vehicles (EVs). In response to this challenge, transportation agencies are seeking alternative sustainable funding solutions. This study conducted a comprehensive review of publicly available literature from the past 15 years in the United States about the evolving landscape of fuel tax alternatives being explored or implemented to support transportation investments. It examines 24 distinct revenue mechanisms grouped into several categories: fuel taxes, vehicle fees, direct and indirect usage fees, externality taxes, and other funding sources. Findings show that states commonly combine multiple approaches to create more resilient and adaptable revenue systems. While each mechanism presents unique challenges, layered strategies reflecting diverse funding sources appear promising for maintaining long-term financial stability in transportation funding. AN - dot:88174 ET - Technical Summary KW - Alternate fuels KW - Cost allocation KW - Fuel taxes KW - Financing KW - State departments of transportation KW - Revenues KW - Electric vehicles KW - Vehicle miles of travel LA - English PB - Louisiana Transportation Research Center PY - 2025-11-01 SN - LTRC Report 720 TI - Alternatives to Motor Fuel Taxes for State DOT Funding [Technical Summary] M3 - Brief N1 - United States N1 - SIO No. DOTLT1000563 LTRC Project No. 25-3PF UR - https://rosap.ntl.bts.gov/view/dot/88174 ER -
Alternatives to Motor Fuel Taxes for State DOT Funding

Dunn, Travis P ;

Alvarado, Roberto

2025-11-01 | PDF

For decades, motor fuel taxes have served as the primary source of revenue for surface transportation infrastructure at both the federal and state levels in the United States. However, the reliability of this funding mechanism is challenged by declining fuel consumption, driven by advancements in vehicle engine efficiency and the growing consumer s ...

12/15/2025

Title : Alternatives to Motor Fuel Taxes for State DOT Funding Creator(s) : Dunn, Travis P;Alvarado, Roberto;Dirks, Abbie C; Corporate Creator(s) : CDM Smith Corporate Contributor(s) : Louisiana. Department of Transportation and Development;United States. Department of Transportation. Federal Highway Administration; Published Date : 2025-11-01 Report Number : FHWA/LA.25/720 URL : https://rosap.ntl.bts.gov/view/dot/88173 Dunn, Travis P et al. (2025). Alternatives to Motor Fuel Taxes for State DOT Funding. Dunn, Travis P and Alvarado, Roberto and Dirks, Abbie C "Alternatives to Motor Fuel Taxes for State DOT Funding" (2025) Dunn, Travis P et al. "Alternatives to Motor Fuel Taxes for State DOT Funding" , 2025 Export RIS Citation Information. TY - Tech Report AU - Dunn, Travis P AU - Alvarado, Roberto AU - Dirks, Abbie C A2 - CDM Smith A3 - Louisiana. Department of Transportation and Development A3 - United States. Department of Transportation. Federal Highway Administration AB - For decades, motor fuel taxes have served as the primary source of revenue for surface transportation infrastructure at both the federal and state levels in the United States. However, the reliability of this funding mechanism is challenged by declining fuel consumption, driven by advancements in vehicle engine efficiency and the growing consumer shift toward alternative fuel and electric vehicles (EVs). In response to this challenge, transportation agencies are seeking alternative sustainable funding solutions. This study conducted a comprehensive review of publicly available literature from the past 15 years in the United States about the evolving landscape of fuel tax alternatives being explored or implemented to support transportation investments. It examines 24 distinct revenue mechanisms grouped into several categories: fuel taxes, vehicle fees, direct and indirect usage fees, externality taxes, and other funding sources. Findings show that states commonly combine multiple approaches to create more resilient and adaptable revenue systems. While each mechanism presents unique challenges, layered strategies reflecting diverse funding sources appear promising for maintaining long-term financial stability in transportation funding. AN - dot:88173 ET - Final Report 04/2025 – 10/2025 KW - Alternate fuels KW - Cost allocation KW - Fuel taxes KW - Financing KW - State departments of transportation KW - Revenues KW - Electric vehicles KW - Vehicle miles of travel LA - English PB - Louisiana Transportation Research Center PY - 2025-11-01 SN - FHWA/LA.25/720 TI - Alternatives to Motor Fuel Taxes for State DOT Funding M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88173 ER -
Development of a Design Methodology for Geosynthetic Reinforced Pavement Using Finite Element Numerical Modeling [Technical Summary]

Abu-Farsakh, Murad Y.

2025-11-01 | PDF

This study was completed using finite element (FE) analysis to assess the benefits of using geosynthetic reinforcement in flexible pavements. A comprehensive parametric study was performed to determine the effect of different variables like asphalt layer thickness, base thickness, geosynthetic type and stiffness, and subgrade stiffness for low, med ...

12/15/2025

Title : Development of a Design Methodology for Geosynthetic Reinforced Pavement Using Finite Element Numerical Modeling [Technical Summary] Creator(s) : Abu-Farsakh, Murad Y. Corporate Creator(s) : Louisiana Transportation Research Center Published Date : 2025-11-01 Report Number : LTRC Report 718 URL : https://rosap.ntl.bts.gov/view/dot/88172 Abu-Farsakh, Murad Y. (2025). Development of a Design Methodology for Geosynthetic Reinforced Pavement Using Finite Element Numerical Modeling [Technical Summary]. Abu-Farsakh, Murad Y. "Development of a Design Methodology for Geosynthetic Reinforced Pavement Using Finite Element Numerical Modeling [Technical Summary]" (2025) Abu-Farsakh, Murad Y. "Development of a Design Methodology for Geosynthetic Reinforced Pavement Using Finite Element Numerical Modeling [Technical Summary]" , 2025 Export RIS Citation Information. TY - Brief AU - Abu-Farsakh, Murad Y. A2 - Louisiana Transportation Research Center AB - This study was completed using finite element (FE) analysis to assess the benefits of using geosynthetic reinforcement in flexible pavements. A comprehensive parametric study was performed to determine the effect of different variables like asphalt layer thickness, base thickness, geosynthetic type and stiffness, and subgrade stiffness for low, medium, and high-volume traffic roads. The FE simulations were run for 100 load cycles, and the resulting permanent deformation (PD) was used to calibrate the ME rutting equation parameters for each layer. The PD data was extrapolated to determine the pavement's service life. The comparison of the PD curves of the unreinforced and reinforced sections was used to calculate the Traffic Benefit Ratios (TBR) at different rutting targets. By establishing the ratio between the calibrated rutting curves of the base and subgrade layers, the reduction coefficients for the PD equations ab and as were derived, which can be used directly in the design of geosynthetic reinforced pavements. AN - dot:88172 ET - Technical Summary KW - Calibration KW - Finite element method KW - Geosynthetics KW - Load tests KW - Pavement design KW - Sensitivity analysis KW - Simulation KW - Subgrade (Pavements) KW - Test sections KW - Traffic loads KW - Validation LA - English PB - Louisiana Transportation Research Center PY - 2025-11-01 SN - LTRC Report 718 TI - Development of a Design Methodology for Geosynthetic Reinforced Pavement Using Finite Element Numerical Modeling [Technical Summary] M3 - Brief N1 - United States N1 - SIO No. DOTLT1000346 UR - https://rosap.ntl.bts.gov/view/dot/88172 ER -
Development of a Design Methodology for Geosynthetic Reinforced Pavement Using Finite Element Numerical Modeling

Abu-Farsakh, Murad Y. ;

Zadehmohamad, Mehdi

2025-11-01 | PDF

This study was completed using finite element (FE) analysis to assess the benefits of using geosynthetic reinforcement in flexible pavements. A comprehensive parametric study was performed to determine the effect of different variables like asphalt layer thickness, base thickness, geosynthetic type and stiffness, and subgrade stiffness for low, med ...

12/15/2025

Title : Development of a Design Methodology for Geosynthetic Reinforced Pavement Using Finite Element Numerical Modeling Creator(s) : Abu-Farsakh, Murad Y.;Zadehmohamad, Mehdi; Corporate Creator(s) : Louisiana Transportation Research Center Corporate Contributor(s) : Louisiana. Department of Transportation and Development;United States. Department of Transportation. Federal Highway Administration; Published Date : 2025-11-01 Report Number : FHWA/LA.25/718 URL : https://rosap.ntl.bts.gov/view/dot/88171 Abu-Farsakh, Murad Y. and Zadehmohamad, Mehdi (2025). Development of a Design Methodology for Geosynthetic Reinforced Pavement Using Finite Element Numerical Modeling. Abu-Farsakh, Murad Y. and Zadehmohamad, Mehdi "Development of a Design Methodology for Geosynthetic Reinforced Pavement Using Finite Element Numerical Modeling" (2025) Abu-Farsakh, Murad Y. and Zadehmohamad, Mehdi "Development of a Design Methodology for Geosynthetic Reinforced Pavement Using Finite Element Numerical Modeling" , 2025 Export RIS Citation Information. TY - Tech Report AU - Abu-Farsakh, Murad Y. AU - Zadehmohamad, Mehdi A2 - Louisiana Transportation Research Center A3 - Louisiana. Department of Transportation and Development A3 - United States. Department of Transportation. Federal Highway Administration AB - This study was completed using finite element (FE) analysis to assess the benefits of using geosynthetic reinforcement in flexible pavements. A comprehensive parametric study was performed to determine the effect of different variables like asphalt layer thickness, base thickness, geosynthetic type and stiffness, and subgrade stiffness for low, medium, and high-volume traffic roads. The FE simulations were run for 100 load cycles, and the resulting permanent deformation (PD) was used to calibrate the ME rutting equation parameters for each layer. The PD data was extrapolated to determine the pavement's service life. The comparison of the PD curves of the unreinforced and reinforced sections was used to calculate the Traffic Benefit Ratios (TBR) at different rutting targets. By establishing the ratio between the calibrated rutting curves of the base and subgrade layers, the reduction coefficients for the PD equations ab and as were derived, which can be used directly in the design of geosynthetic reinforced pavements. AN - dot:88171 ET - Final Report June 2020 - June 2025 KW - Calibration KW - Finite element method KW - Geosynthetics KW - Load tests KW - Pavement design KW - Sensitivity analysis KW - Simulation KW - Subgrade (Pavements) KW - Test sections KW - Traffic loads KW - Validation LA - English PB - Louisiana Transportation Research Center PY - 2025-11-01 SN - FHWA/LA.25/718 TI - Development of a Design Methodology for Geosynthetic Reinforced Pavement Using Finite Element Numerical Modeling M3 - Tech Report N1 - United States N1 - 20-3GT UR - https://rosap.ntl.bts.gov/view/dot/88171 ER -
Update on Evaluating the Magnitude and Time Rate of Consolidation Settlement of Embankments and Other Piezocone Penetration Tests (PCPT) [Project Capsule]

Abu-Farsakh, Murad Y.

2025-10-01 | PDF

The construction of embankments and other infrastructure elements over saturated, compressible, cohesive soft soils in Louisiana presents significant geotechnical design challenges due to anticipated large magnitudes of consolidation settlement and slow rates of consolidation. Inaccurate estimation of these deformations can lead to significant diff ...

12/15/2025

Title : Update on Evaluating the Magnitude and Time Rate of Consolidation Settlement of Embankments and Other Piezocone Penetration Tests (PCPT) [Project Capsule] Creator(s) : Abu-Farsakh, Murad Y. Corporate Creator(s) : Louisiana Transportation Research Center Published Date : 2025-10-01 Report Number : 26-3GT URL : https://rosap.ntl.bts.gov/view/dot/88170 Abu-Farsakh, Murad Y. (2025). Update on Evaluating the Magnitude and Time Rate of Consolidation Settlement of Embankments and Other Piezocone Penetration Tests (PCPT) [Project Capsule]. Abu-Farsakh, Murad Y. "Update on Evaluating the Magnitude and Time Rate of Consolidation Settlement of Embankments and Other Piezocone Penetration Tests (PCPT) [Project Capsule]" (2025) Abu-Farsakh, Murad Y. "Update on Evaluating the Magnitude and Time Rate of Consolidation Settlement of Embankments and Other Piezocone Penetration Tests (PCPT) [Project Capsule]" , 2025 Export RIS Citation Information. TY - Brief AU - Abu-Farsakh, Murad Y. A2 - Louisiana Transportation Research Center AB - The construction of embankments and other infrastructure elements over saturated, compressible, cohesive soft soils in Louisiana presents significant geotechnical design challenges due to anticipated large magnitudes of consolidation settlement and slow rates of consolidation. Inaccurate estimation of these deformations can lead to significant differential settlements, loss of serviceability, structural damage, unsafe drivability, and increased maintenance costs. Therefore, accurate assessment of infrastructure settlement behavior and reliable estimation of the different consolidation parameters, such as constrained modulus (M), compression and recompression indices (Cc & Cr), horizontal and vertical coefficients of consolidation (Ch, Cv), and over consolidation ratio (OCR), are essential for the design and long-term performance evaluation of different infrastructure elements in such conditions. AN - dot:88170 ET - Project Capsule KW - Consolidation KW - Dissipation KW - Embankments KW - Field tests KW - Geotechnical engineering KW - Ground settlement LA - English PB - Louisiana Transportation Research Center PY - 2025-10-01 SN - 26-3GT TI - Update on Evaluating the Magnitude and Time Rate of Consolidation Settlement of Embankments and Other Piezocone Penetration Tests (PCPT) [Project Capsule] M3 - Brief N1 - United States N1 - SPR: TT-Fed/TT-Reg - 5 UR - https://rosap.ntl.bts.gov/view/dot/88170 ER -
Evaluation and Correlation of the Dynamic Friction Tester on Iowa Pavement Surfaces

Iowa. Department of Transportation

2018-01-01 | PDF

Frictional properties of pavement surface materials on roadway shoulders and highway ramps are of concern to state and county pavement engineers. Currently, the frictional properties of pavement surfaces are obtained via testing with a locked‐wheel skid trailer. Operational limitations prohibit the use of a locked‐wheel skid trailer on roadway shou ...

12/15/2025

Title : Evaluation and Correlation of the Dynamic Friction Tester on Iowa Pavement Surfaces Corporate Creator(s) : Iowa. Department of Transportation Published Date : 2018-01-01 Report Number : SP&R Project RB13-016 URL : https://rosap.ntl.bts.gov/view/dot/88169 Iowa. Department of Transportation (2018). Evaluation and Correlation of the Dynamic Friction Tester on Iowa Pavement Surfaces. Iowa. Department of Transportation "Evaluation and Correlation of the Dynamic Friction Tester on Iowa Pavement Surfaces" (2018) Iowa. Department of Transportation "Evaluation and Correlation of the Dynamic Friction Tester on Iowa Pavement Surfaces" , 2018 Export RIS Citation Information. TY - Brief A2 - Iowa. Department of Transportation AB - Frictional properties of pavement surface materials on roadway shoulders and highway ramps are of concern to state and county pavement engineers. Currently, the frictional properties of pavement surfaces are obtained via testing with a locked‐wheel skid trailer. Operational limitations prohibit the use of a locked‐wheel skid trailer on roadway shoulders and highway ramps. A Dynamic Friction Tester (DFT) can be used in these areas to test for frictional quality and characteristics of the pavement surface. AN - dot:88169 KW - Friction tests KW - Friction KW - Pavements KW - Surface dynamics KW - Surface texture tests KW - Skid resistance LA - English PB - Iowa Department of Transportation PY - 2018-01-01 SN - SP&R Project RB13-016 TI - Evaluation and Correlation of the Dynamic Friction Tester on Iowa Pavement Surfaces M3 - Brief N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88169 ER -
Evaluation Results Summary: National Traffic Incident Management (TIM) Responder Training Program

United States. Department of Transportation. Federal Highway Administration

2019-03-01 | PDF

In 2012, the Federal Highway Administration (FHWA) launched the National Traffic Incident Management (TIM) Responder Training Program. The TIM training program was developed by responders for responders and promotes consistent training of all responders to achieve the following three objectives. Responder safety, Safe, quick clearance, and Prompt, ...

12/15/2025

Title : Evaluation Results Summary: National Traffic Incident Management (TIM) Responder Training Program Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration Corporate Contributor(s) : Second Strategic Highway Research Program (SHRP2) Published Date : 2019-03-01 Report Number : FHWA-HOP-19-032 URL : https://rosap.ntl.bts.gov/view/dot/88168 United States. Department of Transportation. Federal Highway Administration (2019). Evaluation Results Summary: National Traffic Incident Management (TIM) Responder Training Program. United States. Department of Transportation. Federal Highway Administration "Evaluation Results Summary: National Traffic Incident Management (TIM) Responder Training Program" (2019) United States. Department of Transportation. Federal Highway Administration "Evaluation Results Summary: National Traffic Incident Management (TIM) Responder Training Program" , 2019 Export RIS Citation Information. TY - Brief A2 - United States. Department of Transportation. Federal Highway Administration A3 - Second Strategic Highway Research Program (SHRP2) AB - In 2012, the Federal Highway Administration (FHWA) launched the National Traffic Incident Management (TIM) Responder Training Program. The TIM training program was developed by responders for responders and promotes consistent training of all responders to achieve the following three objectives. Responder safety, Safe, quick clearance, and Prompt, reliable, interoperable communications. The program includes a Train-the-Trainer (TtT) course that provides participants (i.e., trainers) the knowledge and materials necessary for them to conduct TIM training for TIM responders in their area, typically through use of the four-hour version of the training. Additionally, the National Highway Institute offers a free WebBased Training (WBT) version of the four-hour TIM training course. Additional information about the training program is available at https://ops.fhwa.dot.gov/eto_tim_pse/about/tim.htm. To assess participant learning and to capture the impacts of the training on operations, FHWA developed a suite of surveys that cover reaction, learning, behavior and results. The surveys were administered using either hard copies during training sessions or through an online tool. Following is a summary of the survey results captured between January 2016 and August 2017. AN - dot:88168 KW - Traffic incidents KW - Incident management KW - Training programs KW - First responders LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2019-03-01 SN - FHWA-HOP-19-032 TI - Evaluation Results Summary: National Traffic Incident Management (TIM) Responder Training Program M3 - Brief N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88168 ER -
Demonstration and Inter-Comparison of Seasonal Weight Restriction Models - Phase II

Miller, Heather ;

Berg, Richard L

2020-12-01 | PDF

Many miles of roads are in seasonal frost areas that are highly susceptible to damage during the spring thaw period. As freezing occurs from the surface downward, moisture is drawn toward the freezing front, ice lenses are formed, and the roadways become stronger. When the ice lenses (above still-frozen underlying layers) melt, the structure is lef ...

12/15/2025

Title : Demonstration and Inter-Comparison of Seasonal Weight Restriction Models - Phase II Creator(s) : Miller, Heather;Berg, Richard L;Kestler, Maureen A; Corporate Creator(s) : Frost Associates Corporate Contributor(s) : Iowa Department of Transportation. Aurora Program;United States. Department of Transportation. Federal Highway Administration; Published Date : 2020-12-01 Report Number : 2014-01 URL : https://rosap.ntl.bts.gov/view/dot/88167 Miller, Heather et al. (2020). Demonstration and Inter-Comparison of Seasonal Weight Restriction Models - Phase II. Miller, Heather and Berg, Richard L and Kestler, Maureen A "Demonstration and Inter-Comparison of Seasonal Weight Restriction Models - Phase II" (2020) Miller, Heather et al. "Demonstration and Inter-Comparison of Seasonal Weight Restriction Models - Phase II" , 2020 Export RIS Citation Information. TY - Tech Report AU - Miller, Heather AU - Berg, Richard L AU - Kestler, Maureen A A2 - Frost Associates A3 - Iowa Department of Transportation. Aurora Program A3 - United States. Department of Transportation. Federal Highway Administration AB - Many miles of roads are in seasonal frost areas that are highly susceptible to damage during the spring thaw period. As freezing occurs from the surface downward, moisture is drawn toward the freezing front, ice lenses are formed, and the roadways become stronger. When the ice lenses (above still-frozen underlying layers) melt, the structure is left in an undrained, unconsolidated condition that is highly susceptible to damage under traffic. In seasonal frost areas, some state departments of transportation (DOTs) take advantage of the period of higher strength in mid-winter by using winter weight premiums (WWPs) to increase the allowable weight that trucks can haul. Conversely, to reduce damage during the spring thaw, many road management agencies apply spring load restrictions (SLRs). The objective of this effort was to provide an understanding of the reliability, benefits, costs, and risks of alternate approaches to scheduling seasonal load restrictions on roadways. The major tasks addressed in this Phase II report were to implement the models recommended from Phase I at demonstration sites and to calibrate those models, if required. The models included both degree-day threshold and frost-thaw depth prediction models. Output from the models was then compared with validation data provided by the DOTs involved in this study. These validation data consisted of subsurface temperature data (which were reduced by the research team to compute frost and thaw depths) and, in some cases, deflection and/or stiffness data from lightweight deflectometer (LWD) and falling weight deflectometer (FWD) tests. With the results of these implementation and validation efforts, recommendations based on accuracy, simplicity of use, and cost were developed to aid road management agencies in selecting which model or protocol is most appropriate for their intended purposes, personnel, and specific conditions. AN - dot:88167 ET - Final Report KW - Deflectometers KW - Freeze thaw durability KW - Frost KW - Load limits KW - Pavement maintenance KW - Predictive models KW - Seasonally frozen ground KW - Trucking LA - English PB - Iowa. Department of Transportation. Aurora Program PY - 2020-12-01 SN - 2014-01 TI - Demonstration and Inter-Comparison of Seasonal Weight Restriction Models - Phase II M3 - Tech Report N1 - United States N1 - Federal SPR Part II, CFDA 20.205 UR - https://rosap.ntl.bts.gov/view/dot/88167 ER -
Demonstration and Inter-Comparison of Seasonal Weight Restriction Models - Phase I

Miller, Heather ;

Kestler, Maureen A

2014-07-01 | PDF

In seasonal frost areas, some state departments of transportation (DOTs) take advantage of the period of higher strength in mid- winter by using winter weight premiums (WWPs) to increase the allowable weight that trucks can haul. Conversely, to reduce damage during the spring thaw, many road management agencies apply spring load restrictions (SLRs) ...

12/15/2025

Title : Demonstration and Inter-Comparison of Seasonal Weight Restriction Models - Phase I Creator(s) : Miller, Heather;Kestler, Maureen A;Berg, Richard L;Cabral, Christopher S; Corporate Creator(s) : USDA Forest Service. National Technology and Development Program Corporate Contributor(s) : Iowa State University. Aurora Program;United States. Department of Transportation. Federal Highway Administration; Published Date : 2014-07-01 Report Number : 2012-05 URL : https://rosap.ntl.bts.gov/view/dot/88166 Miller, Heather et al. (2014). Demonstration and Inter-Comparison of Seasonal Weight Restriction Models - Phase I. Miller, Heather et al. "Demonstration and Inter-Comparison of Seasonal Weight Restriction Models - Phase I" (2014) Miller, Heather et al. "Demonstration and Inter-Comparison of Seasonal Weight Restriction Models - Phase I" , 2014 Export RIS Citation Information. TY - Tech Report AU - Miller, Heather AU - Kestler, Maureen A AU - Berg, Richard L AU - Cabral, Christopher S A2 - USDA Forest Service. National Technology and Development Program A3 - Iowa State University. Aurora Program A3 - United States. Department of Transportation. Federal Highway Administration AB - In seasonal frost areas, some state departments of transportation (DOTs) take advantage of the period of higher strength in mid- winter by using winter weight premiums (WWPs) to increase the allowable weight that trucks can haul. Conversely, to reduce damage during the spring thaw, many road management agencies apply spring load restrictions (SLRs). The objective of this effort was to provide an understanding of the reliability, benefits, costs, and risks of alternate approaches to scheduling seasonal load restrictions on roadways. AN - dot:88166 ET - Final Report KW - Deflectometers KW - Freeze thaw durability KW - Frost KW - Load limits KW - Pavement maintenance KW - Predictive models KW - Seasonally frozen ground KW - Trucking LA - English PB - Iowa State University. Aurora Program PY - 2014-07-01 SN - 2012-05 TI - Demonstration and Inter-Comparison of Seasonal Weight Restriction Models - Phase I M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88166 ER -
Effect of Video Camera-Based Remote Roadway Condition Monitoring on Snow Removal-Related Maintenance Operations

Saito, Mitsuru ;

Yamagata, Seishi

2014-06-01 | PDF

Remote monitoring through the use of cameras is widely utilized for traffic operation but has not been utilized widely for roadway maintenance operations. The Utah Department of Transportation (UDOT) has implemented a new remote monitoring system, referred to as a Cloud-enabled Remote Video Streaming (CRVS) camera system for snow removal-related ma ...

12/15/2025

Title : Effect of Video Camera-Based Remote Roadway Condition Monitoring on Snow Removal-Related Maintenance Operations Creator(s) : Saito, Mitsuru;Yamagata, Seishi; Corporate Creator(s) : Brigham Young University. Department of Civil and Construction Engineering Corporate Contributor(s) : Iowa Department of Transportation. Aurora Program;United States. Department of Transportation. Federal Highway Administration; Published Date : 2014-06-01 Report Number : 2012-03 URL : https://rosap.ntl.bts.gov/view/dot/88165 Saito, Mitsuru and Yamagata, Seishi (2014). Effect of Video Camera-Based Remote Roadway Condition Monitoring on Snow Removal-Related Maintenance Operations. Saito, Mitsuru and Yamagata, Seishi "Effect of Video Camera-Based Remote Roadway Condition Monitoring on Snow Removal-Related Maintenance Operations" (2014) Saito, Mitsuru and Yamagata, Seishi "Effect of Video Camera-Based Remote Roadway Condition Monitoring on Snow Removal-Related Maintenance Operations" , 2014 Export RIS Citation Information. TY - Tech Report AU - Saito, Mitsuru AU - Yamagata, Seishi A2 - Brigham Young University. Department of Civil and Construction Engineering A3 - Iowa Department of Transportation. Aurora Program A3 - United States. Department of Transportation. Federal Highway Administration AB - Remote monitoring through the use of cameras is widely utilized for traffic operation but has not been utilized widely for roadway maintenance operations. The Utah Department of Transportation (UDOT) has implemented a new remote monitoring system, referred to as a Cloud-enabled Remote Video Streaming (CRVS) camera system for snow removal-related maintenance operations in the winter. The purpose of this study was to evaluate the effectiveness of the use of the CRVS camera system in snow removal-related maintenance operations. This study was conducted in two parts: opinion surveys of maintenance station supervisors and an analysis on snow removal-related maintenance costs. The responses to the opinion surveys mostly displayed positive reviews of the use of the CRVS cameras. On a scale of 1 (least effective) to 5 (most effective), the average overall effectiveness given by the station supervisors was 4.3. An expedition trip for this study was defined as a trip that was made to just check the roadways if snow-removal was necessary. The average of the responses received from surveys was calculated to be a 33 percent reduction in expedition trips. For the second part of this study, an analysis was performed on the snow removal-related maintenance cost data provided by UDOT to see if the installation of a CRVS camera had an effect in reducing expedition trips. This expedition cost comparison was performed for 10 sets of maintenance stations within Utah. It was difficult to make any definitive inferences from the comparison of expedition costs over the years for which precipitation and expedition cost data were available; hence a statistical analysis was performed using the Mixed Model ANOVA. This analysis resulted in an average of 14 percent higher ratio of expedition costs at maintenance stations with a CRVS camera before the installation of the camera compared to the ratio of expedition costs after the installation of the camera. This difference was not proven to be statistically significant at the 95 percent confident level but indicated that the installation of CRVS cameras was on the average helpful in reducing expedition costs and may be considered practically significant. It is recommended that more detailed and consistent maintenance cost records be prepared for accurate analysis of cost records for this type of study in the future. AN - dot:88165 ET - Final Report KW - Condition surveys KW - Data collection KW - Decision support systems KW - Snow removal KW - Winter maintenance KW - Wireless communication systems KW - Traffic data KW - Video cameras LA - English PB - Iowa. Department of Transportation. Aurora Program PY - 2014-06-01 SN - 2012-03 TI - Effect of Video Camera-Based Remote Roadway Condition Monitoring on Snow Removal-Related Maintenance Operations M3 - Tech Report N1 - United States N1 - SPR 72-00-0003-042 UR - https://rosap.ntl.bts.gov/view/dot/88165 ER -
Iowa Mass Concrete for Bridge Foundation Study – Phase II

Shaw, Jacob J ;

Jahren, Charles T.

2014-02-01 | PDF

The early-age thermal development of structural mass concrete elements has a significant impact on the future durability and longevity of the elements. If the heat of hydration is not controlled, the elements may be susceptible to thermal cracking and damage from delayed ettringite formation. In the Phase I study, the research team reviewed publish ...

12/15/2025

Title : Iowa Mass Concrete for Bridge Foundation Study – Phase II Creator(s) : Shaw, Jacob J;Jahren, Charles T.;Wang, Kejin;Li, Jinxin “Linda”; Corporate Creator(s) : Iowa State University. Institute for Transportation Corporate Contributor(s) : Iowa. Department of Transportation;United States. Department of Transportation. Federal Highway Administration; Published Date : 2014-02-01 Report Number : 10-384 URL : https://rosap.ntl.bts.gov/view/dot/88164 Shaw, Jacob J et al. (2014). Iowa Mass Concrete for Bridge Foundation Study – Phase II. Shaw, Jacob J et al. "Iowa Mass Concrete for Bridge Foundation Study – Phase II" (2014) Shaw, Jacob J et al. "Iowa Mass Concrete for Bridge Foundation Study – Phase II" , 2014 Export RIS Citation Information. TY - Tech Report AU - Shaw, Jacob J AU - Jahren, Charles T. AU - Wang, Kejin AU - Li, Jinxin “Linda” A2 - Iowa State University. Institute for Transportation A3 - Iowa. Department of Transportation A3 - United States. Department of Transportation. Federal Highway Administration AB - The early-age thermal development of structural mass concrete elements has a significant impact on the future durability and longevity of the elements. If the heat of hydration is not controlled, the elements may be susceptible to thermal cracking and damage from delayed ettringite formation. In the Phase I study, the research team reviewed published literature and current specifications on mass concrete. In addition, the team observed construction and reviewed thermal data from the westbound (WB) I-80 Missouri River Bridge. Finally, the researchers conducted an initial investigation of the thermal analysis software programs ConcreteWorks and 4C-Temp&Stress. The Phase II study is aimed at developing guidelines for the design and construction of mass concrete placements associated with large bridge foundations. This phase included an additional review of published literature and a more in-depth investigation of current mass concrete specifications. In addition, the mass concrete construction of two bridges, the WB I-80 Missouri River Bridge and the US 34 Missouri River Bridge, was documented. An investigation was conducted of the theory and application of 4C-Temp&Stress. ConcreteWorks and 4C-Temp&Stress were calibrated with thermal data recorded for the WB I-80 Missouri River Bridge and the US 34 Missouri River Bridge. ConcreteWorks and 4C-Temp&Stress were further verified by means of a sensitivity study. Finally, conclusions and recommendations were developed, as included in this report. AN - dot:88164 ET - Phase II Final Report KW - Bridge foundations KW - Thermal degradation KW - Concrete KW - Performance based specifications KW - Mass concrete construction KW - Thermal stress analysis LA - English PB - Iowa State University. Institute for Transportation PY - 2014-02-01 SN - 10-384 TI - Iowa Mass Concrete for Bridge Foundation Study – Phase II M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88164 ER -
The Stormwater Practitioners Guide: Version 1

United States. Department of Transportation. Federal Highway Administration. Central Federal Lands Division

2018-12-01 | PDF

The FHWA-CFLHD is proposing refinements to how its Permanent Stormwater Management Design Process is implemented. This section aims to document the permanent Stormwater Design process so that projects can consistently evaluate stormwater BMPs during project development. This will improve stormwater treatment on FHWA-CFLHD projects, improve consiste ...

12/15/2025

Title : The Stormwater Practitioners Guide: Version 1 Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration. Central Federal Lands Division Published Date : 2018-12-01 URL : https://rosap.ntl.bts.gov/view/dot/88163 United States. Department of Transportation. Federal Highway Administration. Central Federal Lands Division (2018). The Stormwater Practitioners Guide: Version 1. United States. Department of Transportation. Federal Highway Administration. Central Federal Lands Division "The Stormwater Practitioners Guide: Version 1" (2018) United States. Department of Transportation. Federal Highway Administration. Central Federal Lands Division "The Stormwater Practitioners Guide: Version 1" , 2018 Export RIS Citation Information. TY - Tech Report A2 - United States. Department of Transportation. Federal Highway Administration. Central Federal Lands Division AB - The FHWA-CFLHD is proposing refinements to how its Permanent Stormwater Management Design Process is implemented. This section aims to document the permanent Stormwater Design process so that projects can consistently evaluate stormwater BMPs during project development. This will improve stormwater treatment on FHWA-CFLHD projects, improve consistency with regulatory and permitting requirements, and reduce the movement of roadway pollutants to downstream and end of pipe receptors. The goal is to reduce the amount of runoff generated to the extent practicable before relying on engineered stormwater facilities to meet water quantity and water quality requirements, thereby reducing maintenance needs for our partner agencies. Through this process, FHWA is working internally with project management, project delivery and construction management teams to define improvement areas. The key outcomes from this process are to develop a stormwater compliance process that is an integral part of our project delivery process while remaining scalable and adaptable to meet the large variation in types of projects that we deliver across our fourteen-state region. AN - dot:88163 KW - Drainage KW - Runoff KW - Best practices KW - Project delivery KW - Project management LA - English PB - United States. Federal Highway Administration. Central Federal Lands Highway Division PY - 2018-12-01 TI - The Stormwater Practitioners Guide: Version 1 M3 - Tech Report N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88163 ER -
Safe Transportation for Every Pedestrian

United States. Department of Transportation. Federal Highway Administration

2020-01-01 | PDF

Pedestrian fatalities are on the rise compared to all traffic fatalities. To reduce pedestrian fatalities, the Federal Highway Administration (FHWA) is making an effort to reduce pedestrian fatalities and injuries at uncontrolled crossing locations through Safe Transportation for Every Pedestrian (STEP). FHWA’s actions through the STEP program also ...

12/15/2025

Title : Safe Transportation for Every Pedestrian Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 2020-01-01 URL : https://rosap.ntl.bts.gov/view/dot/88162 United States. Department of Transportation. Federal Highway Administration (2020). Safe Transportation for Every Pedestrian. United States. Department of Transportation. Federal Highway Administration "Safe Transportation for Every Pedestrian" (2020) United States. Department of Transportation. Federal Highway Administration "Safe Transportation for Every Pedestrian" , 2020 Export RIS Citation Information. TY - Booklet/Pamphlet A2 - United States. Department of Transportation. Federal Highway Administration AB - Pedestrian fatalities are on the rise compared to all traffic fatalities. To reduce pedestrian fatalities, the Federal Highway Administration (FHWA) is making an effort to reduce pedestrian fatalities and injuries at uncontrolled crossing locations through Safe Transportation for Every Pedestrian (STEP). FHWA’s actions through the STEP program also promote Vision Zero efforts. Vision Zero aims to eliminate traffic fatalities by improving safety across all transportation systems. Vision Zero uses a Safe Systems approach, believing that humans make mistakes, and roadways should be designed in a way so that if a crash occurs as a result of these mistakes it would not result in a fatality. Additionally, Safe Systems encourages shared responsibility between roadway designers and users. Safe designs can promote safe behaviors. Most of the STEP countermeasures have been evaluated for their effectiveness to reduce pedestrian crash rates, which supports the Vision Zero approach. The Crash Reduction Factor (CRF) is reported for each countermeasure below, based on national transportation safety studies. The CRF is the expected percent reduction in the number of pedestrian crashes after implementing a countermeasure. CRFs on this poster are presented in terms of total crashes unless otherwise indicated. Please consult PEDSAFE, the Pedestrian Safety Guide and Countermeasure Selection System (http://www.pedbikesafe. org), for more information about CRFs and guidance for application of these countermeasures to various roadway and safety conditions. AN - dot:88162 KW - Innovation KW - Cooperation KW - Coordination KW - Technological innovations KW - Deployment KW - Project delivery KW - Highway safety KW - Countermeasures LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2020-01-01 TI - Safe Transportation for Every Pedestrian M3 - Booklet/Pamphlet N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88162 ER -
Know Your Agency's Level of Road Safety Culture

United States. Department of Transportation. Federal Highway Administration

2024-01-01 | PDF

A discussion guide to be used with the "How Do You Know You Have a Strong Safety Culture?" video.

12/15/2025

Title : Know Your Agency's Level of Road Safety Culture Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 2024-01-01 Report Number : FHWA-SA-24-044 URL : https://rosap.ntl.bts.gov/view/dot/88161 United States. Department of Transportation. Federal Highway Administration (2024). Know Your Agency's Level of Road Safety Culture. United States. Department of Transportation. Federal Highway Administration "Know Your Agency's Level of Road Safety Culture" (2024) United States. Department of Transportation. Federal Highway Administration "Know Your Agency's Level of Road Safety Culture" , 2024 Export RIS Citation Information. TY - Booklet/Pamphlet A2 - United States. Department of Transportation. Federal Highway Administration AB - A discussion guide to be used with the "How Do You Know You Have a Strong Safety Culture?" video. AN - dot:88161 KW - Highway safety KW - Traffic safety KW - Decision making KW - Safety culture LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2024-01-01 SN - FHWA-SA-24-044 TI - Know Your Agency's Level of Road Safety Culture M3 - Booklet/Pamphlet N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88161 ER -
EEBACS Construction Paynote Examples

United States. Department of Transportation. Federal Highway Administration. Western Federal Lands Highway Division

2015-03-01 | PDF

This book was developed to be used as a tool for Western Federal Lands Highway Division staff, our partnering agencies, and the contractors we work with. The Construction Paynote Examples book gives examples of how a contractor should submit a request for payment (paynote), and what documentation is required to support their request. Section 109 Me ...

12/15/2025

Title : EEBACS Construction Paynote Examples Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration. Western Federal Lands Highway Division Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 2015-03-01 URL : https://rosap.ntl.bts.gov/view/dot/88160 United States. Department of Transportation. Federal Highway Administration. Western Federal Lands Highway Division (2015). EEBACS Construction Paynote Examples. United States. Department of Transportation. Federal Highway Administration. Western Federal Lands Highway Division "EEBACS Construction Paynote Examples" (2015) United States. Department of Transportation. Federal Highway Administration. Western Federal Lands Highway Division "EEBACS Construction Paynote Examples" , 2015 Export RIS Citation Information. TY - Tech Report A2 - United States. Department of Transportation. Federal Highway Administration. Western Federal Lands Highway Division A3 - United States. Department of Transportation. Federal Highway Administration AB - This book was developed to be used as a tool for Western Federal Lands Highway Division staff, our partnering agencies, and the contractors we work with. The Construction Paynote Examples book gives examples of how a contractor should submit a request for payment (paynote), and what documentation is required to support their request. Section 109 Measurement and Payment of the FP-03 details how items of work should be measured and paid. Examples in this book were created to demonstrate the various methods of measurement and support documentation. The method prescribed in the FP-03 or Special Contract Requirements supersede any example give in the Field Note Sample Book. AN - dot:88160 KW - Construction KW - Contractors KW - Construction projects KW - Project management KW - Payment LA - English PB - United States. Federal Highway Administration. Western Federal Lands Highway Division PY - 2015-03-01 TI - EEBACS Construction Paynote Examples M3 - Tech Report N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88160 ER -
Construction Paynote and Documentation Example Book

United States. Department of Transportation. Federal Highway Administration. Central Federal Lands Highway Division

2012-04-01 | PDF

This book was developed to be used as a guideline for Central Federal Lands Highway Division staff, our partnering agencies, and the contractors we work with. The Construction Paynote Examples book gives examples of how a contractor should submit a request for payment (paynote), and examples of documentation that adequately support their request. C ...

12/15/2025

Title : Construction Paynote and Documentation Example Book Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration. Central Federal Lands Highway Division Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 2012-04-01 URL : https://rosap.ntl.bts.gov/view/dot/88159 United States. Department of Transportation. Federal Highway Administration. Central Federal Lands Highway Division (2012). Construction Paynote and Documentation Example Book. United States. Department of Transportation. Federal Highway Administration. Central Federal Lands Highway Division "Construction Paynote and Documentation Example Book" (2012) United States. Department of Transportation. Federal Highway Administration. Central Federal Lands Highway Division "Construction Paynote and Documentation Example Book" , 2012 Export RIS Citation Information. TY - Tech Report A2 - United States. Department of Transportation. Federal Highway Administration. Central Federal Lands Highway Division A3 - United States. Department of Transportation. Federal Highway Administration AB - This book was developed to be used as a guideline for Central Federal Lands Highway Division staff, our partnering agencies, and the contractors we work with. The Construction Paynote Examples book gives examples of how a contractor should submit a request for payment (paynote), and examples of documentation that adequately support their request. Contractors should refer to Section 109 of the FP03 for details of how particular items of work should be measured and paid. Examples in this book were created to demonstrate various methods of measurement and support documentation. This book shows examples of support documentation (certifications, calculations, tickets, etc.). These are solely examples and do not intend to summarize all support documentation needed prior to payment of any given pay item. The method or requirements prescribed in the FP03 or Special Contract Requirements supersedes any examples given in the Field Note Sample Book. AN - dot:88159 KW - Construction KW - Contractors KW - Construction projects KW - Project management KW - Payment LA - English PB - United States. Federal Highway Administration. Central Federal Lands Highway Division PY - 2012-04-01 TI - Construction Paynote and Documentation Example Book M3 - Tech Report N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88159 ER -
Specification Writers' Guide for Federal Lands Highway

United States. Department of Transportation. Federal Highway Administration. Federal Lands Highway Division

2024-12-01 | PDF

There are two basic specification types that are developed by writers in Federal Lands Highway (FLH): Project-specific Specifications to address a requirement for a single project and Supplemental Specifications to be approved for standard use on specified projects. Both types of specification are used in the Special Contract Requirements (SCRs) fo ...

12/15/2025

Title : Specification Writers' Guide for Federal Lands Highway Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration. Federal Lands Highway Division Published Date : 2024-12-01 URL : https://rosap.ntl.bts.gov/view/dot/88158 United States. Department of Transportation. Federal Highway Administration. Federal Lands Highway Division (2024). Specification Writers' Guide for Federal Lands Highway. United States. Department of Transportation. Federal Highway Administration. Federal Lands Highway Division "Specification Writers' Guide for Federal Lands Highway" (2024) United States. Department of Transportation. Federal Highway Administration. Federal Lands Highway Division "Specification Writers' Guide for Federal Lands Highway" , 2024 Export RIS Citation Information. TY - Tech Report A2 - United States. Department of Transportation. Federal Highway Administration. Federal Lands Highway Division AB - There are two basic specification types that are developed by writers in Federal Lands Highway (FLH): Project-specific Specifications to address a requirement for a single project and Supplemental Specifications to be approved for standard use on specified projects. Both types of specification are used in the Special Contract Requirements (SCRs) for FLH construction projects. This document provides general guidance for developing specifications within FLH. Division-level documents also exist to provide guidance on unique practices at FLH Divisions; where these exist, they should be followed for work within that Division. AN - dot:88158 KW - Specifications KW - Technical writing KW - Development KW - Information, data, and knowledge KW - Definitions LA - English PB - United States. Department of Transportation. Federal Highway Administration. Federal Lands Highway Division PY - 2024-12-01 TI - Specification Writers' Guide for Federal Lands Highway M3 - Tech Report N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88158 ER -
Coastal Nature-Based Solutions: Lessons Learned

United States. Department of Transportation. Federal Highway Administration

2024-08-01 | PDF

This factsheet summarizes emerging practices for planning, designing, and implementing NBS. FHWA published an Implementation Guide in 2019 to help transportation practitioners understand how and where to use NBS for highway resilience to protect coastal roads and bridges from flooding, erosion, storm surge, and sea level rise. In 2021, FHWA conduct ...

12/15/2025

Title : Coastal Nature-Based Solutions: Lessons Learned Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration Contributor(s) : Lupes, Becky Published Date : 2024-08-01 Report Number : FHWA-HEP-24-045 URL : https://rosap.ntl.bts.gov/view/dot/88157 United States. Department of Transportation. Federal Highway Administration (2024). Coastal Nature-Based Solutions: Lessons Learned. United States. Department of Transportation. Federal Highway Administration "Coastal Nature-Based Solutions: Lessons Learned" (2024) United States. Department of Transportation. Federal Highway Administration "Coastal Nature-Based Solutions: Lessons Learned" , 2024 Export RIS Citation Information. TY - Brief A2 - United States. Department of Transportation. Federal Highway Administration A4 - Lupes, Becky AB - This factsheet summarizes emerging practices for planning, designing, and implementing NBS. FHWA published an Implementation Guide in 2019 to help transportation practitioners understand how and where to use NBS for highway resilience to protect coastal roads and bridges from flooding, erosion, storm surge, and sea level rise. In 2021, FHWA conducted follow-up interviews with Coastal NBS pilot projects and other agencies to glean lessons learned from the field. Key findings are presented below along with case examples designed to help engineers, project managers, and other transportation stakeholders interested in NBS. AN - dot:88157 KW - Coastal engineering KW - Coast and river protective works KW - Environmental policy KW - Sustainable development LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2024-08-01 SN - FHWA-HEP-24-045 TI - Coastal Nature-Based Solutions: Lessons Learned M3 - Brief N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88157 ER -
FHWA Travel Analysis Framework: Development of VMT Forecasting Models for Use by the Federal Highway Administration

Pickrell, Don ;

Pace, David

2023-07-01 | PDF

This document details the process that the Volpe National Transportation Systems Center (Volpe) used to develop travel forecasting models for the Federal Highway Administration (FHWA). These models enable FHWA to forecast future changes in the use of passenger and freight vehicles (as measured by the number of vehicle-miles traveled, or VMT) that a ...

12/15/2025

Title : FHWA Travel Analysis Framework: Development of VMT Forecasting Models for Use by the Federal Highway Administration Creator(s) : Pickrell, Don;Pace, David;Wishart, Jacob;Roycroft, Claire; Corporate Creator(s) : John A. Volpe National Transportation Systems Center (U.S.) Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 2023-07-01 URL : https://rosap.ntl.bts.gov/view/dot/88156 Pickrell, Don et al. (2023). FHWA Travel Analysis Framework: Development of VMT Forecasting Models for Use by the Federal Highway Administration. Pickrell, Don et al. "FHWA Travel Analysis Framework: Development of VMT Forecasting Models for Use by the Federal Highway Administration" (2023) Pickrell, Don et al. "FHWA Travel Analysis Framework: Development of VMT Forecasting Models for Use by the Federal Highway Administration" , 2023 Export RIS Citation Information. TY - Tech Report AU - Pickrell, Don AU - Pace, David AU - Wishart, Jacob AU - Roycroft, Claire A2 - John A. Volpe National Transportation Systems Center (U.S.) A3 - United States. Department of Transportation. Federal Highway Administration AB - This document details the process that the Volpe National Transportation Systems Center (Volpe) used to develop travel forecasting models for the Federal Highway Administration (FHWA). These models enable FHWA to forecast future changes in the use of passenger and freight vehicles (as measured by the number of vehicle-miles traveled, or VMT) that are likely to occur in response to predicted changes in future economic conditions and demographic trends. Forecasts of VMT developed using these models will inform and support the development of future transportation plans and policies by the Federal government and other transportation policy makers. AN - dot:88156 KW - Vehicle miles of travel KW - Traffic measurement KW - Economic models KW - Forecasting KW - Traffic estimation KW - Traffic forecasting KW - Travel demand LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2023-07-01 TI - FHWA Travel Analysis Framework: Development of VMT Forecasting Models for Use by the Federal Highway Administration M3 - Tech Report N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88156 ER -
MDSS Implementation Costs in Wisconsin

Adams, Michael J

2013-11-01 | PDF

Maintenance Decision Support System (MDSS) technology is a tool initially developed using Federal Highway Administration (FHWA) funding. It is designed to integrate state-of-the-art weather forecasting and pavement modeling with an agency’s rules of practice for winter operations to generate recommended maintenance actions. The goal is to enhance w ...

12/15/2025

Title : MDSS Implementation Costs in Wisconsin Creator(s) : Adams, Michael J Corporate Creator(s) : Wisconsin. Department of Transportation Corporate Contributor(s) : Iowa Department of Transportation. Aurora Program;United States. Department of Transportation. Federal Highway Administration; Published Date : 2013-11-01 Report Number : 2011-04 URL : https://rosap.ntl.bts.gov/view/dot/88155 Adams, Michael J (2013). MDSS Implementation Costs in Wisconsin. Adams, Michael J "MDSS Implementation Costs in Wisconsin" (2013) Adams, Michael J "MDSS Implementation Costs in Wisconsin" , 2013 Export RIS Citation Information. TY - Tech Report AU - Adams, Michael J A2 - Wisconsin. Department of Transportation A3 - Iowa Department of Transportation. Aurora Program A3 - United States. Department of Transportation. Federal Highway Administration AB - Maintenance Decision Support System (MDSS) technology is a tool initially developed using Federal Highway Administration (FHWA) funding. It is designed to integrate state-of-the-art weather forecasting and pavement modeling with an agency’s rules of practice for winter operations to generate recommended maintenance actions. The goal is to enhance winter maintenance decision making in order to provide more effective responses to winter weather events. This report attempts to quantify the costs associated with the deployment of the Pooled Fund Study MDSS in Wisconsin so that other state DOTs have an idea of the various levels of deployment possible and the costs associated with each. AN - dot:88155 KW - Condition surveys KW - Data collection KW - Decision support systems KW - Snow removal KW - Winter maintenance KW - Surface course (Pavements) LA - English PB - Iowa. Department of Transportation. Aurora Program PY - 2013-11-01 SN - 2011-04 TI - MDSS Implementation Costs in Wisconsin M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88155 ER -
A Driving Simulator Study to Evaluate the Impact of Portable Changeable Message Signs (PCMS) on Drivers’ Speed Characteristics in Work Zones

Bham, Ghulam H ;

Leu, Ming C.

2014-03-01 | PDF

This report analyzed the effects of portable changeable message signs (PCMS) on driver behavior in terms of speed characteristics using a driving simulator. Fifty-two participants from different age groups evaluated four messaging signs with “text and number” by driving through a virtual work zone. Driver reactions to the message signs were analyze ...

12/15/2025

Title : A Driving Simulator Study to Evaluate the Impact of Portable Changeable Message Signs (PCMS) on Drivers’ Speed Characteristics in Work Zones Creator(s) : Bham, Ghulam H;Leu, Ming C.;Venkat, Bharat K;Mohammadi, Mojtaba Ale; Corporate Creator(s) : Missouri University of Science and Technology Corporate Contributor(s) : Midwest States Smart Work Zone Deployment Initiative (SWZDI);United States. Department of Transportation. Federal Highway Administration;Iowa State University. Institute for Transportation (InTrans).; Published Date : 2014-03-01 Report Number : 06-277 URL : https://rosap.ntl.bts.gov/view/dot/88154 Bham, Ghulam H et al. (2014). A Driving Simulator Study to Evaluate the Impact of Portable Changeable Message Signs (PCMS) on Drivers’ Speed Characteristics in Work Zones. Bham, Ghulam H et al. "A Driving Simulator Study to Evaluate the Impact of Portable Changeable Message Signs (PCMS) on Drivers’ Speed Characteristics in Work Zones" (2014) Bham, Ghulam H et al. "A Driving Simulator Study to Evaluate the Impact of Portable Changeable Message Signs (PCMS) on Drivers’ Speed Characteristics in Work Zones" , 2014 Export RIS Citation Information. TY - Tech Report AU - Bham, Ghulam H AU - Leu, Ming C. AU - Venkat, Bharat K AU - Mohammadi, Mojtaba Ale A2 - Missouri University of Science and Technology A3 - Midwest States Smart Work Zone Deployment Initiative (SWZDI) A3 - United States. Department of Transportation. Federal Highway Administration A3 - Iowa State University. Institute for Transportation (InTrans). AB - This report analyzed the effects of portable changeable message signs (PCMS) on driver behavior in terms of speed characteristics using a driving simulator. Fifty-two participants from different age groups evaluated four messaging signs with “text and number” by driving through a virtual work zone. Driver reactions to the message signs were analyzed by examining drivers’ speed before and after each PCMS. It was observed that speeds did not vary significantly for the first seven intervals (defined before and after each PCMS). Significant difference, however, was found on the eighth interval before the start of the lane closure. A 70-mph highway served as the control scenario on which the mean speed of drivers was observed to be 62.55 mph. For the first message sign (MS-1) (“Caution Work Zone Ahead: Reduce Speed Ahead”) the mean speed of drivers decreased by 9.35 mph compared to the control scenario. For MS-2 (“Speed Ahead 30 mph; 2 min to end of WZ”), the mean speed reduced by 36.06 mph compared to the control scenario. For MS-3 (“Prepare to stop; 4 min to end of WZ”) a decrease of 39.46 mph was observed. For MS-4 (“Prepare to stop; Stopped traffic ahead”) a decrease of 48.91 mph was observed compared to the control scenario. Therefore, MS-4 showed the highest speed reduction compared to other messages. A participant survey was conducted to examine the drivers’ rating of the message signs. From this subjective evaluation, MS-2 was rated as the most effective as it was specific in terms of the anticipated speed ahead indicated and hence easier for drivers to follow. AN - dot:88154 ET - Final Report KW - Road construction workers KW - Variable message signs KW - Work zone safety KW - Work zone traffic control KW - Driving behavior LA - English PB - Midwest States Smart Work Zone Deployment Initiative (SWZDI) PY - 2014-03-01 SN - 06-277 TI - A Driving Simulator Study to Evaluate the Impact of Portable Changeable Message Signs (PCMS) on Drivers’ Speed Characteristics in Work Zones M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88154 ER -
Applications of WRM Performance Models for Evaluating the Implications of Varying Service Standards

Fu, Liping ;

Thakali, Lalita

2014-11-01 | PDF

This report describes the result of a study aiming at illustrating how models of winter road maintenance (WRM) performance measures can be applied to investigate the implications of different winter road maintenance level of service (LOS) standards under specific winter weather conditions. The study introduces a cost-benefit framework integrating t ...

12/15/2025

Title : Applications of WRM Performance Models for Evaluating the Implications of Varying Service Standards Creator(s) : Fu, Liping;Thakali, Lalita;Usman, Taimur;Kwon, Tae J; Corporate Creator(s) : University of Waterloo, Canada Corporate Contributor(s) : Ontario. Ministry of Transportation Published Date : 2014-11-01 URL : https://rosap.ntl.bts.gov/view/dot/88153 Fu, Liping et al. (2014). Applications of WRM Performance Models for Evaluating the Implications of Varying Service Standards. Fu, Liping et al. "Applications of WRM Performance Models for Evaluating the Implications of Varying Service Standards" (2014) Fu, Liping et al. "Applications of WRM Performance Models for Evaluating the Implications of Varying Service Standards" , 2014 Export RIS Citation Information. TY - Tech Report AU - Fu, Liping AU - Thakali, Lalita AU - Usman, Taimur AU - Kwon, Tae J A2 - University of Waterloo, Canada A3 - Ontario. Ministry of Transportation AB - This report describes the result of a study aiming at illustrating how models of winter road maintenance (WRM) performance measures can be applied to investigate the implications of different winter road maintenance level of service (LOS) standards under specific winter weather conditions. The study introduces a cost-benefit framework integrating the two primary cost and benefit components associated with winter road maintenance services, namely, material costs, safety and mobility benefits. Various maintenance input, output and outcome models are developed using five seasons of event-based data. The expected cost of maintaining a given highway route is captured by a salt application model, which relates the amount of salt used over a snow event to various event characteristics as well as the LOS class of the highway. The benefit from WRM for a highway route is quantified on the basis of the expected safety improvements, i.e., reduction in the number of collisions, and, the expected mobility improvements, i.e., increase in trip making utility and reduction in travel time. A case study is conducted to determine the optimal traffic threshold for demarcating the Class 1 and 2 highways in Ontario. The study has demonstrated the feasibility of applying the proposed quantitative approach when assessing alternative service standards under different climate conditions. Lastly, future research directions are highlighted at the concluding section. AN - dot:88153 KW - Level of service KW - Winter maintenance KW - Performance measurement KW - Benefit cost analysis KW - Surface course (Pavements) LA - English PB - Ontario. Ministry of Transportation PY - 2014-11-01 TI - Applications of WRM Performance Models for Evaluating the Implications of Varying Service Standards M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88153 ER -
Feasibility of Using Traffic Data for Winter Road Maintenance Performance Measurement

Cao, Luchao (Johnny) ;

Fu, Liping

2014-01-01 | PDF

The research presented in this report is motivated by the need to develop an outcome based WRM performance measurement system with a specific focus on investigating the feasibility of inferring WRM performance from a traffic state. The research studied the impact of winter weather and road surface conditions (RSC) on the average traffic speed of ru ...

12/15/2025

Title : Feasibility of Using Traffic Data for Winter Road Maintenance Performance Measurement Creator(s) : Cao, Luchao (Johnny);Fu, Liping; Corporate Creator(s) : University of Waterloo. Innovative Transportation System Solutions (iTSS) Lab Corporate Contributor(s) : Ontario. Ministry of Transportation Published Date : 2014-01-01 URL : https://rosap.ntl.bts.gov/view/dot/88152 Cao, Luchao (Johnny) and Fu, Liping (2014). Feasibility of Using Traffic Data for Winter Road Maintenance Performance Measurement. Cao, Luchao (Johnny) and Fu, Liping "Feasibility of Using Traffic Data for Winter Road Maintenance Performance Measurement" (2014) Cao, Luchao (Johnny) and Fu, Liping "Feasibility of Using Traffic Data for Winter Road Maintenance Performance Measurement" , 2014 Export RIS Citation Information. TY - Tech Report AU - Cao, Luchao (Johnny) AU - Fu, Liping A2 - University of Waterloo. Innovative Transportation System Solutions (iTSS) Lab A3 - Ontario. Ministry of Transportation AB - The research presented in this report is motivated by the need to develop an outcome based WRM performance measurement system with a specific focus on investigating the feasibility of inferring WRM performance from a traffic state. The research studied the impact of winter weather and road surface conditions (RSC) on the average traffic speed of rural highways with the intention of examining the feasibility of using traffic speeds from traffic sensors as an indicator of WRM performance. Detailed data on weather, RSC, and traffic over three winter seasons from 2008 to 2011 on rural highway sites in Iowa, US are used in this investigation. Three modelling techniques are applied and compared to model the relationship between traffic speed and various road weather and surface condition factors, including multivariate linear regression, artificial neural networks (ANN), and time series analysis. Multivariate linear regression models are compared by temporal aggregation (15 minutes vs. 60 minutes), types of highways (two-lane vs. four-lane), and model types (separated vs. combined). The research then examined the feasibility of estimating/classifying RSC based on traffic speed and winter weather factors using multi-layer logistic regression classification trees. The modelling results have confirmed the expected effects of weather variables including precipitation, temperature, and wind speed; it verified the statistically strong relationship between traffic speed and RSC, suggesting that speed could potentially be used as an indicator of bare pavement conditions and thus the performance of WRM operations. It is also confirmed that a time series model could be a valuable tool for predicting real-time traffic conditions based on weather forecast and planned maintenance operations, and that a multi-layer logistic regression classification tree model could be applied for estimating RSC on highways based on average traffic speed and weather conditions. AN - dot:88152 KW - Condition surveys KW - Data collection KW - Decision support systems KW - Snow removal KW - Winter maintenance KW - Wireless communication systems KW - Traffic data LA - English PB - Ontario. Ministry of Transportation PY - 2014-01-01 TI - Feasibility of Using Traffic Data for Winter Road Maintenance Performance Measurement M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88152 ER -
Field Test and Evaluation of a Mobile Automated Winter Road Condition Reporting System

Fu, Liping ;

Linton, Michael

2017-01-01 | PDF

This project investigates the performance of a smartphone-based road surface condition (RSC) monitoring system called AVL-Genius. The system uses a smartphone to capture images of the road surface along a route and automatically classifies each image into one of several distinct RSC classes. It can also generate route level RSC statistics that can ...

12/15/2025

Title : Field Test and Evaluation of a Mobile Automated Winter Road Condition Reporting System Creator(s) : Fu, Liping;Linton, Michael; Corporate Creator(s) : University of Waterloo, Canada Corporate Contributor(s) : Ontario. Ministry of Transportation Published Date : 2017-01-01 URL : https://rosap.ntl.bts.gov/view/dot/88151 Fu, Liping and Linton, Michael (2017). Field Test and Evaluation of a Mobile Automated Winter Road Condition Reporting System. Fu, Liping and Linton, Michael "Field Test and Evaluation of a Mobile Automated Winter Road Condition Reporting System" (2017) Fu, Liping and Linton, Michael "Field Test and Evaluation of a Mobile Automated Winter Road Condition Reporting System" , 2017 Export RIS Citation Information. TY - Tech Report AU - Fu, Liping AU - Linton, Michael A2 - University of Waterloo, Canada A3 - Ontario. Ministry of Transportation AB - This project investigates the performance of a smartphone-based road surface condition (RSC) monitoring system called AVL-Genius. The system uses a smartphone to capture images of the road surface along a route and automatically classifies each image into one of several distinct RSC classes. It can also generate route level RSC statistics that can be used for bare pavement reporting. This report documents the main outcome of the project, including an overview of various RSC monitoring technologies, a detailed description of the field test, and a comprehensive analysis of the test data. AN - dot:88151 KW - Automatic vehicle location KW - Condition surveys KW - Data collection KW - Decision support systems KW - Snow removal KW - Winter maintenance KW - Wireless communication systems LA - English PB - Ontario. Ministry of Transportation PY - 2017-01-01 TI - Field Test and Evaluation of a Mobile Automated Winter Road Condition Reporting System M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88151 ER -
The Elimination of Random Car Sequence in Trains

Landow, Herbert Trask

1961-01-01 | PDF

Herbert T. Landow’s "The Elimination of Random Car Sequence in Trains" (1961) emphasizes the economic and operational consequences of random car sequencing during train assembly. He compares traditional flat and hump yard designs, analyzing their physical layouts, switching procedures, and limitations in eliminating randomness within train consists ...

12/15/2025

Title : The Elimination of Random Car Sequence in Trains Creator(s) : Landow, Herbert Trask Corporate Creator(s) : University of Pennsylvania. Wharton School Published Date : 1961-01-01 URL : https://rosap.ntl.bts.gov/view/dot/88150 Landow, Herbert Trask (1961). The Elimination of Random Car Sequence in Trains. Landow, Herbert Trask "The Elimination of Random Car Sequence in Trains" (1961) Landow, Herbert Trask "The Elimination of Random Car Sequence in Trains" , 1961 Export RIS Citation Information. TY - Thesis AU - Landow, Herbert Trask A2 - University of Pennsylvania. Wharton School AB - Herbert T. Landow’s "The Elimination of Random Car Sequence in Trains" (1961) emphasizes the economic and operational consequences of random car sequencing during train assembly. He compares traditional flat and hump yard designs, analyzing their physical layouts, switching procedures, and limitations in eliminating randomness within train consists. He points out that while the car classification process has been highly automated in hump yards, the train assembly process has remained manual. The thesis proposes the ICS yard design—also known as a “Herringbone” or “Trainmaker” yard, as a highly automated classification and sequencing system, that can automate the assembly of outbound multiple-block trains in proper standing order. AN - dot:88150 KW - Railroad trains KW - Terminal operations KW - Railroad yards KW - Intercity transportation KW - Freight trains KW - Car distribution (Railroads) LA - English PB - University of Pennsylvania PY - 1961-01-01 TI - The Elimination of Random Car Sequence in Trains M3 - Thesis N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88150 ER -
Equity in Transportation Payments: A Study for the California Department of Transportation

Mata, Stacy ;

Hamilton, Madi

2025-10-01 | PDF

This study identifies equity challenges in current transportation payment systems, specifically for transit, parking, and vehicle tolls. The methodology included comprehensive literature reviews, an inventory of 49 global transit systems, seven case studies, and expert interviews to assess payment accessibility, technical rules, interoperability, a ...

12/15/2025

Title : Equity in Transportation Payments: A Study for the California Department of Transportation Creator(s) : Mata, Stacy;Hamilton, Madi;Huang, Caleb;Gahbauer, John;Matute, Juan; Corporate Creator(s) : University of California, Los Angeles. Institute of Transportation Studies Corporate Contributor(s) : California Department of Transportation Published Date : 2025-10-01 Report Number : 65A1166-1 URL : https://rosap.ntl.bts.gov/view/dot/88149 Mata, Stacy et al. (2025). Equity in Transportation Payments: A Study for the California Department of Transportation. Mata, Stacy et al. "Equity in Transportation Payments: A Study for the California Department of Transportation" (2025) Mata, Stacy et al. "Equity in Transportation Payments: A Study for the California Department of Transportation" , 2025 Export RIS Citation Information. TY - Tech Report AU - Mata, Stacy AU - Hamilton, Madi AU - Huang, Caleb AU - Gahbauer, John AU - Matute, Juan A2 - University of California, Los Angeles. Institute of Transportation Studies A3 - California Department of Transportation AB - This study identifies equity challenges in current transportation payment systems, specifically for transit, parking, and vehicle tolls. The methodology included comprehensive literature reviews, an inventory of 49 global transit systems, seven case studies, and expert interviews to assess payment accessibility, technical rules, interoperability, and user privacy. AN - dot:88149 ET - April 2024 – October 2025 KW - Parking fees KW - Transit traffic KW - Tolls KW - Fares KW - Fare collection KW - Equity (Justice) KW - Transportation equity LA - English PB - University of California, Los Angeles. Institute of Transportation Studies PY - 2025-10-01 SN - 65A1166-1 TI - Equity in Transportation Payments: A Study for the California Department of Transportation M3 - Tech Report N1 - United States N1 - 65A1166 UR - https://rosap.ntl.bts.gov/view/dot/88149 ER -
Mobile Weather Data Collection Guidelines (on DOT Fleet Vehicles)

Iowa Department of Transportation. Aurora Program

2014-05-01 | PDF

With the addition of integrated telecommunications and information technology or telematics to maintenance fleet vehicles, we gain the ability to collect data that may aid in identifying current road and weather conditions. However, care must be taken to assure these data reflect actual conditions and not a microclimate created by the vehicle.

12/15/2025

Title : Mobile Weather Data Collection Guidelines (on DOT Fleet Vehicles) Corporate Creator(s) : Iowa Department of Transportation. Aurora Program Published Date : 2014-05-01 Report Number : 2010-02 URL : https://rosap.ntl.bts.gov/view/dot/88148 Iowa Department of Transportation. Aurora Program (2014). Mobile Weather Data Collection Guidelines (on DOT Fleet Vehicles). Iowa Department of Transportation. Aurora Program "Mobile Weather Data Collection Guidelines (on DOT Fleet Vehicles)" (2014) Iowa Department of Transportation. Aurora Program "Mobile Weather Data Collection Guidelines (on DOT Fleet Vehicles)" , 2014 Export RIS Citation Information. TY - Brief A2 - Iowa Department of Transportation. Aurora Program AB - With the addition of integrated telecommunications and information technology or telematics to maintenance fleet vehicles, we gain the ability to collect data that may aid in identifying current road and weather conditions. However, care must be taken to assure these data reflect actual conditions and not a microclimate created by the vehicle. AN - dot:88148 KW - Mobile communication systems KW - Road weather information systems KW - Data collection KW - State departments of transportation KW - Vehicle fleets LA - English PB - Iowa. Department of Transportation. Aurora Program PY - 2014-05-01 SN - 2010-02 TI - Mobile Weather Data Collection Guidelines (on DOT Fleet Vehicles) M3 - Brief N1 - United States N1 - SPR-3(042) UR - https://rosap.ntl.bts.gov/view/dot/88148 ER -
The Pavement Precipitation Accumulation Estimation System — Further Development [Project Summary]

Askelson, Mark ;

Tilley, Jeff

2013-05-01 | PDF

Wintertime precipitation has profound impacts on surface transportation. Surface transportation ramifications include decreased public safety, compromised traveler mobility, diminished productivity of roadway users, and adverse environmental effects due to the need to chemically treat icy roads. The winter road maintenance community can benefit fro ...

12/15/2025

Title : The Pavement Precipitation Accumulation Estimation System — Further Development [Project Summary] Creator(s) : Askelson, Mark;Tilley, Jeff;Townsend, Ed;Theisen, Christopher; Corporate Creator(s) : University of North Dakota. John D. Odegard School of Aerospace Sciences Corporate Contributor(s) : Iowa Department of Transportation. Aurora Program Published Date : 2013-05-01 Report Number : 2009-05 URL : https://rosap.ntl.bts.gov/view/dot/88147 Askelson, Mark et al. (2013). The Pavement Precipitation Accumulation Estimation System — Further Development [Project Summary]. Askelson, Mark et al. "The Pavement Precipitation Accumulation Estimation System — Further Development [Project Summary]" (2013) Askelson, Mark et al. "The Pavement Precipitation Accumulation Estimation System — Further Development [Project Summary]" , 2013 Export RIS Citation Information. TY - Brief AU - Askelson, Mark AU - Tilley, Jeff AU - Townsend, Ed AU - Theisen, Christopher A2 - University of North Dakota. John D. Odegard School of Aerospace Sciences A3 - Iowa Department of Transportation. Aurora Program AB - Wintertime precipitation has profound impacts on surface transportation. Surface transportation ramifications include decreased public safety, compromised traveler mobility, diminished productivity of roadway users, and adverse environmental effects due to the need to chemically treat icy roads. The winter road maintenance community can benefit from having more information about wintertime precipitation, including where precipitation is occurring and precipitation rate, leading to improvements of safety and greater cost effectiveness. AN - dot:88147 ET - Project Summary KW - Algorithms KW - Precipitation (Meteorology) KW - Snow KW - Winter maintenance KW - Pavement performance LA - English PB - Iowa. Department of Transportation. Aurora Program PY - 2013-05-01 SN - 2009-05 TI - The Pavement Precipitation Accumulation Estimation System — Further Development [Project Summary] M3 - Brief N1 - United States N1 - SPR 72-00-0003-042 UR - https://rosap.ntl.bts.gov/view/dot/88147 ER -
The Pavement Precipitation Accumulation Estimation System — Further Development

Askelson, Mark ;

Tilley, Jeff

2013-05-01 | PDF

Wintertime precipitation has profound impacts on surface transportation. Surface transportation ramifications include decreased public safety, compromised traveler mobility, diminished productivity of roadway users, and adverse environmental effects due to the need to chemically treat icy roads. The winter road maintenance community can benefit fro ...

12/15/2025

Title : The Pavement Precipitation Accumulation Estimation System — Further Development Creator(s) : Askelson, Mark;Tilley, Jeff;Townsend, Ed;Theisen, Christopher; Corporate Creator(s) : University of North Dakota. John D. Odegard School of Aerospace Sciences Corporate Contributor(s) : Iowa Department of Transportation. Aurora Program;United States. Department of Transportation. Federal Highway Administration; Published Date : 2013-05-01 Report Number : 2009-05 URL : https://rosap.ntl.bts.gov/view/dot/88146 Askelson, Mark et al. (2013). The Pavement Precipitation Accumulation Estimation System — Further Development. Askelson, Mark et al. "The Pavement Precipitation Accumulation Estimation System — Further Development" (2013) Askelson, Mark et al. "The Pavement Precipitation Accumulation Estimation System — Further Development" , 2013 Export RIS Citation Information. TY - Tech Report AU - Askelson, Mark AU - Tilley, Jeff AU - Townsend, Ed AU - Theisen, Christopher A2 - University of North Dakota. John D. Odegard School of Aerospace Sciences A3 - Iowa Department of Transportation. Aurora Program A3 - United States. Department of Transportation. Federal Highway Administration AB - Wintertime precipitation has profound impacts on surface transportation. Surface transportation ramifications include decreased public safety, compromised traveler mobility, diminished productivity of roadway users, and adverse environmental effects due to the need to chemically treat icy roads. The winter road maintenance community can benefit from having more information about wintertime precipitation, including where precipitation is occurring and precipitation rate, leading to improvements of safety and greater cost effectiveness. AN - dot:88146 ET - Final Report KW - Algorithms KW - Precipitation (Meteorology) KW - Snow KW - Winter maintenance KW - Pavement performance LA - English PB - Iowa. Department of Transportation. Aurora Program PY - 2013-05-01 SN - 2009-05 TI - The Pavement Precipitation Accumulation Estimation System — Further Development M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88146 ER -
Determining the Effectiveness of Graphic-aided Dynamic Message Signs in Work Zones

Bai, Yong ;

Huang, Yilei

2011-07-01 | PDF

Portable changeable message signs (PCMSs) have been employed in highway work zones as an innovative temporary traffic control (TTC) device in the United Stated for many years. The traditional message format on a PCMS is text-based, which has been found to have several limitations in recent studies, such as confusing drivers and delaying their respo ...

12/15/2025

Title : Determining the Effectiveness of Graphic-aided Dynamic Message Signs in Work Zones Creator(s) : Bai, Yong;Huang, Yilei;Schrock, Steven D.;Li, Yue; Corporate Creator(s) : University of Kansas. Dept. of Civil, Environmental and Architectural Engineering Corporate Contributor(s) : Smart Work Zone Deployment Initiative;United States. Department of Transportation. Federal Highway Administration; Published Date : 2011-07-01 Report Number : TPF-5(081) URL : https://rosap.ntl.bts.gov/view/dot/88145 Bai, Yong et al. (2011). Determining the Effectiveness of Graphic-aided Dynamic Message Signs in Work Zones. Bai, Yong et al. "Determining the Effectiveness of Graphic-aided Dynamic Message Signs in Work Zones" (2011) Bai, Yong et al. "Determining the Effectiveness of Graphic-aided Dynamic Message Signs in Work Zones" , 2011 Export RIS Citation Information. TY - Tech Report AU - Bai, Yong AU - Huang, Yilei AU - Schrock, Steven D. AU - Li, Yue A2 - University of Kansas. Dept. of Civil, Environmental and Architectural Engineering A3 - Smart Work Zone Deployment Initiative A3 - United States. Department of Transportation. Federal Highway Administration AB - Portable changeable message signs (PCMSs) have been employed in highway work zones as an innovative temporary traffic control (TTC) device in the United Stated for many years. The traditional message format on a PCMS is text-based, which has been found to have several limitations in recent studies, such as confusing drivers and delaying their responses during driving, being difficult to read for older drivers and non-English-speaking drivers, and having a short range of legibility. The use of graphic-aided messages on PCMSs has many advantages over text-based PCMSs based on a number of previous laboratory simulation experiments. This research project used field experiments and driver surveys to determine the effectiveness of a graphic-aided PCMS on reducing vehicle speed and drivers' acceptance of utilizing a graphic-aided PCMS in the upstream of a one-lane two-way rural highway work zone. Field experiments were conducted to compare the effectiveness of text PCMS, graphic-aided PCMS, and graphic PCMS on reducing vehicle speed in a highway work zone in Kansas, and to develop regression models of the relationship between mean vehicle speed and distance under three PCMS conditions. Driver surveys were conducted to evaluate drivers’ opinions on the implementation of a graphic-aided PCMS in the highway work zone. The findings showed that 1) using a text, a graphic-aided, and a graphic PCMS resulted in a mean vehicle speed reduction of 13%, 10%, and 17%, respectively; 2) using a graphic-aided PCMS reduced mean vehicle speed more effectively than using a text PCMS from 1,475 ft to 1,000 ft in the upstream of a work zone; using a graphic PCMS reduced mean vehicle speed more effectively than using a text PCMS from 1,475 ft in the upstream of the work zone to the location of the second TTC sign (W20-4 sign); 3) the majority of drivers understood the work zone and flagger graphics and believed the graphics drew their attention more to the work zone traffic conditions; and 4) more drivers preferred the information to be presented in the graphic-aided and graphic formats if the graphic-aided and graphic PCMSs were available. AN - dot:88145 ET - Final Report, July 2010 – June 2011 KW - Crashes KW - Graphics KW - Variable message signs KW - Work zone traffic control KW - Work zone safety KW - Speed LA - English PB - Smart Work Zone Deployment Initiative PY - 2011-07-01 SN - TPF-5(081) TI - Determining the Effectiveness of Graphic-aided Dynamic Message Signs in Work Zones M3 - Tech Report N1 - United States N1 - 12065 UR - https://rosap.ntl.bts.gov/view/dot/88145 ER -
Determining the Effectiveness of Graphic-aided Dynamic Message Signs in Work Zones

Bai, Yong ;

Huang, Yilei

2011-07-01 | PDF

Portable changeable message signs (PCMSs) have been employed in highway work zones as an innovative temporary traffic control (TTC) device in the United Stated for many years. The traditional message format on a PCMS is text-based, which has been found to have several limitations in recent studies, such as confusing drivers and delaying their respo ...

12/15/2025

Title : Determining the Effectiveness of Graphic-aided Dynamic Message Signs in Work Zones Creator(s) : Bai, Yong;Huang, Yilei;Schrock, Steven D.;Li, Yue; Corporate Creator(s) : University of Kansas. Dept. of Civil, Environmental and Architectural Engineering Corporate Contributor(s) : Smart Work Zone Deployment Initiative;United States. Department of Transportation. Federal Highway Administration; Published Date : 2011-07-01 Report Number : TPF-5(081) URL : https://rosap.ntl.bts.gov/view/dot/88144 Bai, Yong et al. (2011). Determining the Effectiveness of Graphic-aided Dynamic Message Signs in Work Zones. Bai, Yong et al. "Determining the Effectiveness of Graphic-aided Dynamic Message Signs in Work Zones" (2011) Bai, Yong et al. "Determining the Effectiveness of Graphic-aided Dynamic Message Signs in Work Zones" , 2011 Export RIS Citation Information. TY - Tech Report AU - Bai, Yong AU - Huang, Yilei AU - Schrock, Steven D. AU - Li, Yue A2 - University of Kansas. Dept. of Civil, Environmental and Architectural Engineering A3 - Smart Work Zone Deployment Initiative A3 - United States. Department of Transportation. Federal Highway Administration AB - Portable changeable message signs (PCMSs) have been employed in highway work zones as an innovative temporary traffic control (TTC) device in the United Stated for many years. The traditional message format on a PCMS is text-based, which has been found to have several limitations in recent studies, such as confusing drivers and delaying their responses during driving, being difficult to read for older drivers and non-English-speaking drivers and having a short range of legibility. The use of graphic-aided messages on PCMSs has many advantages over text-based PCMSs based on a number of previous laboratory simulation experiments. This research project used field experiments and driver surveys to determine the effectiveness of a graphic-aided PCMS on reducing vehicle speed and drivers' acceptance of utilizing a graphic-aided PCMS in the upstream of a one-lane two-way rural highway work zone. Field experiments were conducted to compare the effectiveness of text PCMS, graphic-aided PCMS, and graphic PCMS on reducing vehicle speed in a highway work zone in Kansas, and to develop regression models of the relationship between mean vehicle speed and distance under three PCMS conditions. Driver surveys were conducted to evaluate drivers’ opinions on the implementation of a graphic-aided PCMS in the highway work zone. The findings showed that 1) using a text, a graphic-aided, and a graphic PCMS resulted in a mean vehicle speed reduction of 13%, 10%, and 17%, respectively; 2) using a graphic-aided PCMS reduced mean vehicle speed more effectively than using a text PCMS from 1,475 ft to 1,000 ft in the upstream of a work zone; using a graphic PCMS reduced mean vehicle speed more effectively than using a text PCMS from 1,475 ft in the upstream of the work zone to the location of the second TTC sign (W20-4 sign); 3) the majority of drivers understood the work zone and flagger graphics and believed the graphics drew their attention more to the work zone traffic conditions; and 4) more drivers preferred the information to be presented in the graphic-aided and graphic formats if the graphic-aided and graphic PCMSs were available. AN - dot:88144 ET - Final Report, July 2010 – June 2011 KW - Crashes KW - Graphics KW - Variable message signs KW - Work zone traffic control KW - Work zone safety KW - Speed LA - English PB - Smart Work Zone Deployment Initiative PY - 2011-07-01 SN - TPF-5(081) TI - Determining the Effectiveness of Graphic-aided Dynamic Message Signs in Work Zones M3 - Tech Report N1 - United States N1 - 12065 UR - https://rosap.ntl.bts.gov/view/dot/88144 ER -
Evaluation of Rapid Deployment Mesh Networking for Work Zones

Schrock, Steven D. ;

Wang, Weichao

2009-05-01 | PDF

Communications between high-technology devices in work zones has long been a challenge. The problem is acute in rural areas where there is often little or no existing infrastructure to support wireless communication to the same extent as in urbanized areas. Despite this, there is often a desire to use real-time communications between new technologi ...

12/15/2025

Title : Evaluation of Rapid Deployment Mesh Networking for Work Zones Creator(s) : Schrock, Steven D.;Wang, Weichao;See, Chen Fei;Chellamani, Deepak;Sarangapani, Mukund;Mulinazzi, Thomas E.; Corporate Creator(s) : University of Kansas. Dept. of Civil, Environmental and Architectural Engineering;United States. Department of Transportation. Federal Highway Administration; Corporate Contributor(s) : Midwest States Smart Work Zone Deployment Initiative (SWZDI) Published Date : 2009-05-01 Report Number : 45100-1 URL : https://rosap.ntl.bts.gov/view/dot/88143 Schrock, Steven D. et al. (2009). Evaluation of Rapid Deployment Mesh Networking for Work Zones. Schrock, Steven D. et al. "Evaluation of Rapid Deployment Mesh Networking for Work Zones" (2009) Schrock, Steven D. et al. "Evaluation of Rapid Deployment Mesh Networking for Work Zones" , 2009 Export RIS Citation Information. TY - Tech Report AU - Schrock, Steven D. AU - Wang, Weichao AU - See, Chen Fei AU - Chellamani, Deepak AU - Sarangapani, Mukund AU - Mulinazzi, Thomas E. A2 - University of Kansas. Dept. of Civil, Environmental and Architectural Engineering A2 - United States. Department of Transportation. Federal Highway Administration A3 - Midwest States Smart Work Zone Deployment Initiative (SWZDI) AB - Communications between high-technology devices in work zones has long been a challenge. The problem is acute in rural areas where there is often little or no existing infrastructure to support wireless communication to the same extent as in urbanized areas. Despite this, there is often a desire to use real-time communications between new technologies to provide accurate work zone information to motorists or to remotely monitor work zone operations. An opportunity exists with new decentralized wireless communications technology known as mesh networks. Typically available in the license-free spectrums, a mesh network is by definition rapidly deployable and automatically configured, precisely what is needed to blanket a rural work zone. AN - dot:88143 ET - Final Report, September 2006 - March 2009 KW - Advanced driver information systems KW - Data communications KW - Merging traffic KW - Vehicular ad hoc networks KW - Intelligent transportation systems KW - Vehicle to vehicle communications KW - Weather KW - Road weather information systems LA - English PB - Midwest States Smart Work Zone Deployment Initiative (SWZDI) PY - 2009-05-01 SN - 45100-1 TI - Evaluation of Rapid Deployment Mesh Networking for Work Zones M3 - Tech Report N1 - United States N1 - 09012 UR - https://rosap.ntl.bts.gov/view/dot/88143 ER -
Evaluation of Early Merge Static Work Zone Signing in Oklahoma

Schrock, Steven D. ;

See, Chen Fei

2008-08-01 | PDF

This research examined the safety and operational benefits of having traffic merge early into the open lane prior to a work zone merge area. A 2007 law in Oklahoma adopted the use of additional “STATE LAW MERGE NOW” static signing in the advance warning areas approximately 1/2-mile upstream from freeway merge areas. Work zones that were continuatio ...

12/15/2025

Title : Evaluation of Early Merge Static Work Zone Signing in Oklahoma Creator(s) : Schrock, Steven D.;See, Chen Fei;Becker, Matthew;Mulinazzi, Thomas E.; Corporate Creator(s) : University of Kansas. Dept. of Civil, Environmental and Architectural Engineering Corporate Contributor(s) : Midwest States Smart Work Zone Deployment Initiative (SWZDI);Iowa. Department of Transportation;United States. Department of Transportation. Federal Highway Administration; Published Date : 2008-08-01 Report Number : 45090-1 URL : https://rosap.ntl.bts.gov/view/dot/88142 Schrock, Steven D. et al. (2008). Evaluation of Early Merge Static Work Zone Signing in Oklahoma. Schrock, Steven D. et al. "Evaluation of Early Merge Static Work Zone Signing in Oklahoma" (2008) Schrock, Steven D. et al. "Evaluation of Early Merge Static Work Zone Signing in Oklahoma" , 2008 Export RIS Citation Information. TY - Tech Report AU - Schrock, Steven D. AU - See, Chen Fei AU - Becker, Matthew AU - Mulinazzi, Thomas E. A2 - University of Kansas. Dept. of Civil, Environmental and Architectural Engineering A3 - Midwest States Smart Work Zone Deployment Initiative (SWZDI) A3 - Iowa. Department of Transportation A3 - United States. Department of Transportation. Federal Highway Administration AB - This research examined the safety and operational benefits of having traffic merge early into the open lane prior to a work zone merge area. A 2007 law in Oklahoma adopted the use of additional “STATE LAW MERGE NOW” static signing in the advance warning areas approximately 1/2-mile upstream from freeway merge areas. Work zones that were continuations from the 2006 construction season did not use this signing, while new work zones did. This provided a unique opportunity to compare the impact of early merge signing in actual work zone environments. Measures of effectiveness examined included the number and percentage of traffic that remained in the closed lane and the number of conflicts that occurred at the merge area. AN - dot:88142 KW - Highway safety KW - Work zone safety KW - Measures of effectiveness KW - Merging control KW - Merging traffic KW - Signs KW - Work zone traffic control LA - English PB - Midwest States Smart Work Zone Deployment Initiative (SWZDI) PY - 2008-08-01 SN - 45090-1 TI - Evaluation of Early Merge Static Work Zone Signing in Oklahoma M3 - Tech Report N1 - United States N1 - STE45090 UR - https://rosap.ntl.bts.gov/view/dot/88142 ER -
Evaluation of Vaisala Spectro Pavement Sensor [Project Summary]

Albrecht, Chris

2010-02-01 | PDF

The purpose of this project was to study the accuracy and usefulness of the Vaisala Spectro/Cyclo (DST111 and DSC111) pavement condition and temperature sensor suite under real-world conditions. The goal was to compare data collected from the Vaisala sensor suite with data gathered from in situ sensors to determine if the data were accurate.

12/15/2025

Title : Evaluation of Vaisala Spectro Pavement Sensor [Project Summary] Creator(s) : Albrecht, Chris Corporate Creator(s) : University of North Dakota Corporate Contributor(s) : Iowa State University. Aurora Program Published Date : 2010-02-01 URL : https://rosap.ntl.bts.gov/view/dot/88141 Albrecht, Chris (2010). Evaluation of Vaisala Spectro Pavement Sensor [Project Summary]. Albrecht, Chris "Evaluation of Vaisala Spectro Pavement Sensor [Project Summary]" (2010) Albrecht, Chris "Evaluation of Vaisala Spectro Pavement Sensor [Project Summary]" , 2010 Export RIS Citation Information. TY - Brief AU - Albrecht, Chris A2 - University of North Dakota A3 - Iowa State University. Aurora Program AB - The purpose of this project was to study the accuracy and usefulness of the Vaisala Spectro/Cyclo (DST111 and DSC111) pavement condition and temperature sensor suite under real-world conditions. The goal was to compare data collected from the Vaisala sensor suite with data gathered from in situ sensors to determine if the data were accurate. AN - dot:88141 ET - Project Summary KW - Sensors KW - Field tests KW - Temperature KW - Pavement performance KW - Predictive models KW - Surface course (Pavements) KW - Vaisala Spectro/Cyclo sensor suite LA - English PB - Iowa State University. Aurora Program PY - 2010-02-01 TI - Evaluation of Vaisala Spectro Pavement Sensor [Project Summary] M3 - Brief N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88141 ER -
Evaluation of Potential uses for a Hand Held Portable X-ray Fluorescence Spectrometer

Jones, Kevin B.

2018-02-01 | PDF

One of the renewal projects under the Second Strategic Highway Research Program (SHRP 2) explored the potential for broad use of portable spectroscopic devices to fingerprint construction materials commonly used in transportation infrastructure. One of the instruments identified as having potential was a portable X-ray Fluorescence (XRF) instrument ...

12/15/2025

Title : Evaluation of Potential uses for a Hand Held Portable X-ray Fluorescence Spectrometer Creator(s) : Jones, Kevin B. Corporate Creator(s) : Iowa. Department of Transportation. Construction and Materials Bureau Published Date : 2018-02-01 Report Number : MLR-18-01 URL : https://rosap.ntl.bts.gov/view/dot/88140 Jones, Kevin B. (2018). Evaluation of Potential uses for a Hand Held Portable X-ray Fluorescence Spectrometer. Jones, Kevin B. "Evaluation of Potential uses for a Hand Held Portable X-ray Fluorescence Spectrometer" (2018) Jones, Kevin B. "Evaluation of Potential uses for a Hand Held Portable X-ray Fluorescence Spectrometer" , 2018 Export RIS Citation Information. TY - Tech Report AU - Jones, Kevin B. A2 - Iowa. Department of Transportation. Construction and Materials Bureau AB - One of the renewal projects under the Second Strategic Highway Research Program (SHRP 2) explored the potential for broad use of portable spectroscopic devices to fingerprint construction materials commonly used in transportation infrastructure. One of the instruments identified as having potential was a portable X-ray Fluorescence (XRF) instrument. In addition to the uses identified by the research project, there are some potential Iowa specific applications that are explored in this report. Testing was done on carbonate aggregates and stainless-steel reinforcement. The conclusions are: 1. The handheld XRF was quick and easy to operate compared to the laboratory XRF. A technician with a few hours of training could perform tests on a wide variety of materials such as soils, rock, paint, plastics, and metals. 2. The handheld XRF with the metals library does very well at identifying the metal type. The flexibility to add additional element limits and metal types to the library is a useful feature for use on specialty alloys. 3. Once the handheld XRF was calibrated for carbonate aggregates, it was fairly accurate and repeatable on prepared samples of rock and powder. Curved or rough surfaces appeared to reduce the accuracy and repeatability. 4. The XRF fingerprint matching algorithm was unable to consistently match pebbles from the same sample. An enhanced algorithm using the full spectrum might produce better results. Some sample preparation might also improve the accuracy. AN - dot:88140 ET - Final Report, December 2015 to December 2017 KW - Nondestructive tests KW - Carbonate rocks KW - Spectrometers KW - Infrastructure KW - Portable XRF KW - Carbonate Aggregate Chemistry LA - English PB - Iowa Department of Transportation PY - 2018-02-01 SN - MLR-18-01 TI - Evaluation of Potential uses for a Hand Held Portable X-ray Fluorescence Spectrometer M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88140 ER -
Special Crash Investigations: On-Site Rollover Crash Investigation; Vehicle: 2019 Chevrolet Equinox; Location: California; Crash Date: October 2022

Dynamic Science, Inc.

2025-12-01 | PDF

This Special Crash Investigations report documents the fatal rollover crash of a 2019 Chevrolet Equinox that moved into the lane of a 2016 Honda CR-V. The Chevrolet went out of control, rolled down a dirt embankment and rolled over. The Chevrolet driver was pronounced deceased on-scene and the belted 52-year-old front passenger was hospitalized for ...

12/12/2025

Title : Special Crash Investigations: On-Site Rollover Crash Investigation; Vehicle: 2019 Chevrolet Equinox; Location: California; Crash Date: October 2022 Corporate Creator(s) : Dynamic Science, Inc. Corporate Contributor(s) : United States. Department of Transportation. National Highway Traffic Safety Administration Published Date : 2025-12-01 Report Number : DOT HS 813 714 DOI : https://doi.org/10.21949/vzcx-cb93 Dynamic Science, Inc. (2025). Special Crash Investigations: On-Site Rollover Crash Investigation; Vehicle: 2019 Chevrolet Equinox; Location: California; Crash Date: October 2022. https://doi.org/10.21949/vzcx-cb93 Dynamic Science, Inc. "Special Crash Investigations: On-Site Rollover Crash Investigation; Vehicle: 2019 Chevrolet Equinox; Location: California; Crash Date: October 2022" (2025), https://doi.org/10.21949/vzcx-cb93 Dynamic Science, Inc. "Special Crash Investigations: On-Site Rollover Crash Investigation; Vehicle: 2019 Chevrolet Equinox; Location: California; Crash Date: October 2022" , 2025, https://doi.org/10.21949/vzcx-cb93 Export RIS Citation Information. TY - Tech Report A2 - Dynamic Science, Inc. A3 - United States. Department of Transportation. National Highway Traffic Safety Administration AB - This Special Crash Investigations report documents the fatal rollover crash of a 2019 Chevrolet Equinox that moved into the lane of a 2016 Honda CR-V. The Chevrolet went out of control, rolled down a dirt embankment and rolled over. The Chevrolet driver was pronounced deceased on-scene and the belted 52-year-old front passenger was hospitalized for 6 days. The belted 47-year-old Honda driver had minor injuries and the belted 44-year-old female front passenger was not injured. AN - dot:88139 DO - https://doi.org/10.21949/vzcx-cb93 ET - Technical Report, October 2022 KW - Rollover crashes KW - Air bags KW - Passive restraint systems KW - Crash injuries KW - Fatalities LA - English PB - United States. Department of Transportation. National Highway Traffic Safety Administration PY - 2025-12-01 SN - DOT HS 813 714 TI - Special Crash Investigations: On-Site Rollover Crash Investigation; Vehicle: 2019 Chevrolet Equinox; Location: California; Crash Date: October 2022 M3 - Tech Report N1 - United States N1 - 693JJ918C000012 UR - https://rosap.ntl.bts.gov/view/dot/88139 ER -
Early Estimate of Motor Vehicle Traffic Fatalities for The First 9 Months (January–September) of 2025 [Traffic Safety Facts]

United States. Department of Transportation. National Highway Traffic Safety Administration

2025-12-01 | PDF

A statistical projection of traffic fatalities for the first 9 months of 2025 shows an estimated 27,365 people died in motor vehicle traffic crashes, a decrease of about 6.4 percent compared to the first 9 months of 2024, as shown in Table 1. The third quarter of 2025 represents the 14th consecutive quarterly decline in fatalities beginning with th ...

12/12/2025

Title : Early Estimate of Motor Vehicle Traffic Fatalities for The First 9 Months (January–September) of 2025 [Traffic Safety Facts] Corporate Creator(s) : United States. Department of Transportation. National Highway Traffic Safety Administration Published Date : 2025-12-01 Report Number : DOT HS 813 778 DOI : https://doi.org/10.21949/z5hx-1h50 United States. Department of Transportation. National Highway Traffic Safety Administration (2025). Early Estimate of Motor Vehicle Traffic Fatalities for The First 9 Months (January–September) of 2025 [Traffic Safety Facts]. https://doi.org/10.21949/z5hx-1h50 United States. Department of Transportation. National Highway Traffic Safety Administration "Early Estimate of Motor Vehicle Traffic Fatalities for The First 9 Months (January–September) of 2025 [Traffic Safety Facts]" (2025), https://doi.org/10.21949/z5hx-1h50 United States. Department of Transportation. National Highway Traffic Safety Administration "Early Estimate of Motor Vehicle Traffic Fatalities for The First 9 Months (January–September) of 2025 [Traffic Safety Facts]" , 2025, https://doi.org/10.21949/z5hx-1h50 Export RIS Citation Information. TY - Brief A2 - United States. Department of Transportation. National Highway Traffic Safety Administration AB - A statistical projection of traffic fatalities for the first 9 months of 2025 shows an estimated 27,365 people died in motor vehicle traffic crashes, a decrease of about 6.4 percent compared to the first 9 months of 2024, as shown in Table 1. The third quarter of 2025 represents the 14th consecutive quarterly decline in fatalities beginning with the second quarter of 2022. Preliminary data reported by the Federal Highway Administration shows that vehicle miles traveled in the first 9 months of 2025 increased by about 25.1 billion miles, or about a 1.0-percent increase. AN - dot:88138 DO - https://doi.org/10.21949/z5hx-1h50 ET - Traffic Safety Facts KW - Estimates KW - Fatalities KW - Traffic data KW - Traffic safety KW - Trend (Statistics) LA - English PB - United States. Department of Transportation. National Highway Traffic Safety Administration PY - 2025-12-01 SN - DOT HS 813 778 TI - Early Estimate of Motor Vehicle Traffic Fatalities for The First 9 Months (January–September) of 2025 [Traffic Safety Facts] M3 - Brief N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88138 ER -
Pedestrian Test Mannequin Radar Cross-section Repeatability Evaluation

Rossman, Alexander ;

Kearns, Liam

2025-12-01 | PDF

This report documents the repeatability of measuring the radar cross-section of two pedestrian mannequin test surrogates designed to emulate an adult and a child pedestrian. The test methodology discusses using two measurement procedures from the International Organization for Standardization surrogate devices that aided in the calibration offset c ...

12/11/2025

Title : Pedestrian Test Mannequin Radar Cross-section Repeatability Evaluation Creator(s) : Rossman, Alexander;Kearns, Liam;Ahern, Zachary;Albrecht, Heath;Davis, Ian J.; Corporate Creator(s) : United States. Department of Transportation. National Highway Traffic Safety Administration. Vehicle Research and Test Center Corporate Contributor(s) : United States. Department of Transportation. National Highway Traffic Safety Administration Published Date : 2025-12-01 Report Number : DOT HS 813 748 DOI : https://doi.org/10.21949/3c2k-0y41 Rossman, Alexander et al. (2025). Pedestrian Test Mannequin Radar Cross-section Repeatability Evaluation. https://doi.org/10.21949/3c2k-0y41 Rossman, Alexander et al. "Pedestrian Test Mannequin Radar Cross-section Repeatability Evaluation" (2025), https://doi.org/10.21949/3c2k-0y41 Rossman, Alexander et al. "Pedestrian Test Mannequin Radar Cross-section Repeatability Evaluation" , 2025, https://doi.org/10.21949/3c2k-0y41 Export RIS Citation Information. TY - Tech Report AU - Rossman, Alexander AU - Kearns, Liam AU - Ahern, Zachary AU - Albrecht, Heath AU - Davis, Ian J. A2 - United States. Department of Transportation. National Highway Traffic Safety Administration. Vehicle Research and Test Center A3 - United States. Department of Transportation. National Highway Traffic Safety Administration AB - This report documents the repeatability of measuring the radar cross-section of two pedestrian mannequin test surrogates designed to emulate an adult and a child pedestrian. The test methodology discusses using two measurement procedures from the International Organization for Standardization surrogate devices that aided in the calibration offset calculations and results. AN - dot:88137 DO - https://doi.org/10.21949/3c2k-0y41 KW - Dummies KW - Crash victim simulation KW - Crosswalks KW - Pedestrians KW - Radar KW - Cross sections KW - Advanced driver information systems KW - Test track evaluations LA - English PB - United States. Department of Transportation. National Highway Traffic Safety Administration PY - 2025-12-01 SN - DOT HS 813 748 TI - Pedestrian Test Mannequin Radar Cross-section Repeatability Evaluation M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88137 ER -
Vehicle Headlamp Aim Angle Test Procedure and Tolerance Research

Voyzey, Nick ;

Mazzae, Elizabeth N.

2025-12-01 | PDF

This report summarizes research conducted to support NHTSA’s response to requirements of the Infrastructure Investment and Jobs Act (IIJA) of 2021 to amend Federal Motor Vehicle Safety Standard No. 108 “to include performance-based standards for vehicle headlamp systems (A) to ensure that headlights are correctly aimed on the road; and (B) requirin ...

12/10/2025

Title : Vehicle Headlamp Aim Angle Test Procedure and Tolerance Research Creator(s) : Voyzey, Nick;Mazzae, Elizabeth N.;Baldwin, G H Scott;Andrella, Adam T.; Corporate Creator(s) : United States. Department of Transportation. National Highway Traffic Safety Administration. Vehicle Research and Test Center Published Date : 2025-12-01 Report Number : DOT HS 813 759 DOI : https://doi.org/10.21949/7dw5-3c90 Voyzey, Nick et al. (2025). Vehicle Headlamp Aim Angle Test Procedure and Tolerance Research. https://doi.org/10.21949/7dw5-3c90 Voyzey, Nick et al. "Vehicle Headlamp Aim Angle Test Procedure and Tolerance Research" (2025), https://doi.org/10.21949/7dw5-3c90 Voyzey, Nick et al. "Vehicle Headlamp Aim Angle Test Procedure and Tolerance Research" , 2025, https://doi.org/10.21949/7dw5-3c90 Export RIS Citation Information. TY - Tech Report AU - Voyzey, Nick AU - Mazzae, Elizabeth N. AU - Baldwin, G H Scott AU - Andrella, Adam T. A2 - United States. Department of Transportation. National Highway Traffic Safety Administration. Vehicle Research and Test Center AB - This report summarizes research conducted to support NHTSA’s response to requirements of the Infrastructure Investment and Jobs Act (IIJA) of 2021 to amend Federal Motor Vehicle Safety Standard No. 108 “to include performance-based standards for vehicle headlamp systems (A) to ensure that headlights are correctly aimed on the road; and (B) requiring those systems to be tested on-vehicle to account for headlight height and lighting performance.” This effort focused on determining a test procedure for measuring lower beam headlamp aim angle and gathering data to provide a basis for developing aim angle tolerance values for use in a new FMVSS No. 108 requirement. The research performed provide data from which an on-vehicle headlamp aim angle tolerance with consideration for headlamp mounting height could be asserted. AN - dot:88136 DO - https://doi.org/10.21949/7dw5-3c90 ET - Final Report KW - Headlamps KW - Vehicle lighting devices KW - Lighting KW - Standards KW - FMVSS No. 108 KW - Aim angle, LA - English PB - United States. Department of Transportation. National Highway Traffic Safety Administration PY - 2025-12-01 SN - DOT HS 813 759 TI - Vehicle Headlamp Aim Angle Test Procedure and Tolerance Research M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88136 ER -
Development of a Simplified Methodology to Assess the Internal Redundancy of Bolted-Built-Up Tied Arch Members

Farooq, Shah Zaib ;

Korkmaz, Cem

2025-09-01 | PDF

Tied arch bridges represent a vital component of the nation's infrastructure, valued for their structural efficiency and aesthetic qualities. These bridges rely on arch ribs to transfer vertical loads into horizontal thrusts, which are counteracted by the tie beams (TBs) acting in axial tension. In addition to this axial tension, TBs are also subje ...

12/09/2025

Title : Development of a Simplified Methodology to Assess the Internal Redundancy of Bolted-Built-Up Tied Arch Members Creator(s) : Farooq, Shah Zaib;Korkmaz, Cem;Connor, Robert J.; Corporate Creator(s) : Purdue University Corporate Contributor(s) : United States. Federal Highway Administration. Office of Bridges and Structures Published Date : 2025-09-01 DOI : https://doi.org/10.5703/1288284318219 Farooq, Shah Zaib et al. (2025). Development of a Simplified Methodology to Assess the Internal Redundancy of Bolted-Built-Up Tied Arch Members. https://doi.org/10.5703/1288284318219 Farooq, Shah Zaib and Korkmaz, Cem and Connor, Robert J. "Development of a Simplified Methodology to Assess the Internal Redundancy of Bolted-Built-Up Tied Arch Members" (2025), https://doi.org/10.5703/1288284318219 Farooq, Shah Zaib et al. "Development of a Simplified Methodology to Assess the Internal Redundancy of Bolted-Built-Up Tied Arch Members" , 2025, https://doi.org/10.5703/1288284318219 Export RIS Citation Information. TY - Tech Report AU - Farooq, Shah Zaib AU - Korkmaz, Cem AU - Connor, Robert J. A2 - Purdue University A3 - United States. Federal Highway Administration. Office of Bridges and Structures AB - Tied arch bridges represent a vital component of the nation's infrastructure, valued for their structural efficiency and aesthetic qualities. These bridges rely on arch ribs to transfer vertical loads into horizontal thrusts, which are counteracted by the tie beams (TBs) acting in axial tension. In addition to this axial tension, TBs are also subjected to strong axis bending mainly due to live loads from vehicular traffic. The TB, therefore, is a critical structural component, maintaining the internal equilibrium of the system by resisting the spreading forces generated by the arch and bending caused by the moving vehicular loads. These TBs are often constructed as built-up steel members, a design that inherently possesses a degree of internal redundancy, allowing them to redistribute loads among their components following a localized fracture. AN - dot:88135 DO - https://doi.org/10.5703/1288284318219 ET - Final Report, July 2022 – September 2025 KW - Bridges KW - Steel bridges KW - Arch bridges KW - Beams KW - Tie beams KW - Internally redundant member KW - Non-redundant steel tension member LA - English PB - Purdue University PY - 2025-09-01 TI - Development of a Simplified Methodology to Assess the Internal Redundancy of Bolted-Built-Up Tied Arch Members M3 - Tech Report N1 - United States N1 - 693JJ322C000014 UR - https://rosap.ntl.bts.gov/view/dot/88135 ER -
Safety Implications of Potential Advanced Driver Assistance Systems Sensor Degradation

Stowe, Loren

;

Alcazar, Javier

2025-12-01 | PDF

The project examined the impact of degradations on advanced driver assistance system (ADAS) perception sensor performance. Sensor degradation refers to the gradual decline in a sensor’s performance over time, resulting in deviations from its nominal or expected output. The scope included permanent and semi-permanent cumulative degradations affectin ...

12/08/2025

Title : Safety Implications of Potential Advanced Driver Assistance Systems Sensor Degradation Creator(s) : Stowe, Loren;Alcazar, Javier;Huggins, Steven;Beale, Gregory T;Palmer, Matt;Doerzaph, Zachary R; Corporate Creator(s) : Virginia Tech Transportation Institute Corporate Contributor(s) : United States. Department of Transportation. National Highway Traffic Safety Administration. Office of Vehicle Safety Research Published Date : 2025-12-01 Report Number : DOT HS 813 740 2. Government Accession No. 3. Recipient's Catalog No. DOI : https://doi.org/10.21949/87jb-q591 Stowe, Loren et al. (2025). Safety Implications of Potential Advanced Driver Assistance Systems Sensor Degradation. https://doi.org/10.21949/87jb-q591 Stowe, Loren et al. "Safety Implications of Potential Advanced Driver Assistance Systems Sensor Degradation" (2025), https://doi.org/10.21949/87jb-q591 Stowe, Loren et al. "Safety Implications of Potential Advanced Driver Assistance Systems Sensor Degradation" , 2025, https://doi.org/10.21949/87jb-q591 Export RIS Citation Information. TY - Tech Report AU - Stowe, Loren AU - Alcazar, Javier AU - Huggins, Steven AU - Beale, Gregory T AU - Palmer, Matt AU - Doerzaph, Zachary R A2 - Virginia Tech Transportation Institute A3 - United States. Department of Transportation. National Highway Traffic Safety Administration. Office of Vehicle Safety Research AB - The project examined the impact of degradations on advanced driver assistance system (ADAS) perception sensor performance. Sensor degradation refers to the gradual decline in a sensor’s performance over time, resulting in deviations from its nominal or expected output. The scope included permanent and semi-permanent cumulative degradations affecting camera, radar, and LiDAR sensors. Degradation types were identified through a literature review and stakeholder interviews. Methods were developed to create, test, and evaluate degradations using static tests with various targets, enabling consistent assessment of different material and degradation combinations. Results helped identify the most impactful degradations and guided the selection of samples for component and vehicle-level testing. Each degradation was tested at three severity levels (high, medium, and low). Camera, radar, and LiDAR sensors and a ground truth system were mounted on a vehicle for data collection in dynamic scenarios using a target vehicle. Sensor data with and without degraded conditions were compared. While all degradations affected sensor signal paths, impacts varied. Occlusions reduced sensor response, and road grime or improper repairs significantly decreased sensor range and point returns. System level evaluation of a vehicle’s ADAS with degraded sensors introduced additional challenges. Depending on how the ADAS processed degraded sensor signals and the level of redundancy (e.g., sensor fusion), system behavior ranged from feature shutdown, to ADAS performance degradation, or no impact. AN - dot:88134 DO - https://doi.org/10.21949/87jb-q591 KW - Advanced driver information systems KW - Self diagnostic routines KW - Degradation failures KW - In vehicle sensors KW - Cameras KW - Ultrasonic detectors KW - Radar KW - Laser radar LA - English PB - United States. Department of Transportation. National Highway Traffic Safety Administration PY - 2025-12-01 SN - DOT HS 813 740 2. Government Accession No. 3. Recipient's Catalog No. TI - Safety Implications of Potential Advanced Driver Assistance Systems Sensor Degradation M3 - Tech Report N1 - United States N1 - DTNH2214D00328L UR - https://rosap.ntl.bts.gov/view/dot/88134 ER -
Remarks by Frank C. Herringer, Administrator, Urban Mass Transportation Administration, at the American Transit Association's News Conference

Herringer, Frank C.

1973-03-21 | PDF

Remarks by Frank C. Herringer, Administrator of the Urban Mass Transportation Administration, at the American Transit Association's News Conference in Washington, D.C. on March 21, 1973.

12/08/2025

Title : Remarks by Frank C. Herringer, Administrator, Urban Mass Transportation Administration, at the American Transit Association's News Conference Creator(s) : Herringer, Frank C. Corporate Creator(s) : United States. Department of Transportation. Urban Mass Transit Administration Published Date : 1973-03-21 DOI : https://doi.org/10.21949/te4h-1375 Herringer, Frank C. (1973). Remarks by Frank C. Herringer, Administrator, Urban Mass Transportation Administration, at the American Transit Association's News Conference. https://doi.org/10.21949/te4h-1375 Herringer, Frank C. "Remarks by Frank C. Herringer, Administrator, Urban Mass Transportation Administration, at the American Transit Association's News Conference" (1973), https://doi.org/10.21949/te4h-1375 Herringer, Frank C. "Remarks by Frank C. Herringer, Administrator, Urban Mass Transportation Administration, at the American Transit Association's News Conference" , 1973, https://doi.org/10.21949/te4h-1375 Export RIS Citation Information. TY - Speeches AU - Herringer, Frank C. A2 - United States. Department of Transportation. Urban Mass Transit Administration AB - Remarks by Frank C. Herringer, Administrator of the Urban Mass Transportation Administration, at the American Transit Association's News Conference in Washington, D.C. on March 21, 1973. AN - dot:88133 DO - https://doi.org/10.21949/te4h-1375 KW - Public transit KW - Urban transit KW - Personal rapid transit KW - Paratransit services KW - Paratransit vehicles LA - English PB - United States. Department of Transportation. Federal Transit Administration PY - 1973-03-21 TI - Remarks by Frank C. Herringer, Administrator, Urban Mass Transportation Administration, at the American Transit Association's News Conference M3 - Speeches N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88133 ER -
Safety Edge Crash Modification Factors [Tech Brief]

Hallmark, Shauna L. ;

Goswamy, Amrita

2017-12-01 | PDF

The Safety Edge is a relatively low-cost countermeasure that can be applied in both asphalt and concrete paving operations. The Safety Edge has been promoted as a low-cost countermeasure to reduce the frequency and severity of rural roadway departure crashes. However, there is little information about the actual effectiveness of the Safety Edge in ...

12/08/2025

Title : Safety Edge Crash Modification Factors [Tech Brief] Creator(s) : Hallmark, Shauna L.;Goswamy, Amrita;Pawlovich, Michael; Corporate Creator(s) : Iowa State University. Department of Civil, Construction and Environmental Engineering;Iowa. Department of Transportation; Corporate Contributor(s) : Midwest Transportation Center;United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology;United States. Department of Transportation. Federal Highway Administration;Iowa State University. Center for Transportation Research and Education;Iowa State University. Institute for Transportation; Published Date : 2017-12-01 URL : https://rosap.ntl.bts.gov/view/dot/88132 Hallmark, Shauna L. et al. (2017). Safety Edge Crash Modification Factors [Tech Brief]. Hallmark, Shauna L. and Goswamy, Amrita and Pawlovich, Michael "Safety Edge Crash Modification Factors [Tech Brief]" (2017) Hallmark, Shauna L. et al. "Safety Edge Crash Modification Factors [Tech Brief]" , 2017 Export RIS Citation Information. TY - Brief AU - Hallmark, Shauna L. AU - Goswamy, Amrita AU - Pawlovich, Michael A2 - Iowa State University. Department of Civil, Construction and Environmental Engineering A2 - Iowa. Department of Transportation A3 - Midwest Transportation Center A3 - United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology A3 - United States. Department of Transportation. Federal Highway Administration A3 - Iowa State University. Center for Transportation Research and Education A3 - Iowa State University. Institute for Transportation AB - The Safety Edge is a relatively low-cost countermeasure that can be applied in both asphalt and concrete paving operations. The Safety Edge has been promoted as a low-cost countermeasure to reduce the frequency and severity of rural roadway departure crashes. However, there is little information about the actual effectiveness of the Safety Edge in reducing the number and severity of crashes. AN - dot:88132 ET - Tech Brief KW - Countermeasures KW - Crash modification factors KW - Intersections KW - Median barriers KW - Paved shoulders KW - Ran off road crashes KW - Rumble strips LA - English PB - Iowa Department of Transportation PY - 2017-12-01 TI - Safety Edge Crash Modification Factors [Tech Brief] M3 - Brief N1 - United States N1 - DTRT13-G-UTC37 UR - https://rosap.ntl.bts.gov/view/dot/88132 ER -
Evaluation of CX1 Structural Dynamics Monitor

Phares, Brent M.

;

Todsen, Michael

2020-02-01 | PDF

Monitoring of the in-field performance of bridges and other structures has become a very valuable tool to the Iowa DOT Office of Bridges and Structures. There simply is no better way to understand how structures react to loadings than by physical monitoring and testing. There are a large number of monitoring tools that are commercially available. O ...

12/08/2025

Title : Evaluation of CX1 Structural Dynamics Monitor Creator(s) : Phares, Brent M.;Todsen, Michael; Corporate Creator(s) : Iowa State University. Bridge Engineering Center;Iowa. Department of Transportation; Published Date : 2020-02-01 URL : https://rosap.ntl.bts.gov/view/dot/88131 Phares, Brent M. and Todsen, Michael (2020). Evaluation of CX1 Structural Dynamics Monitor. Phares, Brent M. and Todsen, Michael "Evaluation of CX1 Structural Dynamics Monitor" (2020) Phares, Brent M. and Todsen, Michael "Evaluation of CX1 Structural Dynamics Monitor" , 2020 Export RIS Citation Information. TY - Tech Report AU - Phares, Brent M. AU - Todsen, Michael A2 - Iowa State University. Bridge Engineering Center A2 - Iowa. Department of Transportation AB - Monitoring of the in-field performance of bridges and other structures has become a very valuable tool to the Iowa DOT Office of Bridges and Structures. There simply is no better way to understand how structures react to loadings than by physical monitoring and testing. There are a large number of monitoring tools that are commercially available. One such tool is manufactured by an Iowa-based company known as SENSR. The SENSR hardware consists of tri-axial accelerometers, tiltmeters and temperature sensors. The unique nature of the SENSR hardware is that it is easily deployable by personnel with only a limited amount of training. AN - dot:88131 KW - Bridges KW - Tunnels KW - Evaluation and assessment KW - Accelerometers KW - Detection and identification KW - Sensors KW - Tilmeters LA - English PB - Iowa Department of Transportation PY - 2020-02-01 TI - Evaluation of CX1 Structural Dynamics Monitor M3 - Tech Report N1 - United States N1 - SP&R Part II, 775 Project# RB27-014 UR - https://rosap.ntl.bts.gov/view/dot/88131 ER -
Total Friction Management on Canadian Pacific

Roney, Michael ;

Eadie, Don

2009-04-01 | PDF

Canadian Pacific Railway (CPR) has been a leader in implementation of new friction control technology. Following earlier trials, we report the design, justification, roll out and early results of Total Friction Management (TFM) (GF plus TOR) over all high tonnage lines in Western Canada. Tools and processes needed for implementing TFM over a large ...

12/08/2025

Title : Total Friction Management on Canadian Pacific Creator(s) : Roney, Michael;Eadie, Don;Oldknow, Kevin;Sroba, Peter;Caldwell, Rob;Santoro, Marco; Corporate Creator(s) : Canadian Pacific Railway;Kelsan Technologies Corp;National Research Council of Canada;Portec Rail Products Ltd; Published Date : 2009-04-01 URL : https://rosap.ntl.bts.gov/view/dot/88130 Roney, Michael et al. (2009). Total Friction Management on Canadian Pacific. Roney, Michael et al. "Total Friction Management on Canadian Pacific" (2009) Roney, Michael et al. "Total Friction Management on Canadian Pacific" , 2009 Export RIS Citation Information. TY - Research Paper AU - Roney, Michael AU - Eadie, Don AU - Oldknow, Kevin AU - Sroba, Peter AU - Caldwell, Rob AU - Santoro, Marco A2 - Canadian Pacific Railway A2 - Kelsan Technologies Corp A2 - National Research Council of Canada A2 - Portec Rail Products Ltd AB - Canadian Pacific Railway (CPR) has been a leader in implementation of new friction control technology. Following earlier trials, we report the design, justification, roll out and early results of Total Friction Management (TFM) (GF plus TOR) over all high tonnage lines in Western Canada. Tools and processes needed for implementing TFM over a large territory are described. The roll out incorporates state of the art equipment and materials for GF and TOR application, logistics considerations for material handling, and maintenance issues through dedicated TFM staff. Development of a holistic economic case for this TFM project is discussed. Prior results were used to quantify expected savings in rail, ties, and track regauging. Wheel replacement savings were estimated. Locomotive fuel savings were projected by model. Together with the appropriate costs, the expected savings were used to develop an overall business case. TFM implementation involves installation of 325 TOR wayside applicators over 923 route miles between Calgary to Vancouver, as well as optimization and upgrade of 216 wayside GF units. Remote Performance Monitoring is used to manage unit maintenance. Performance verification includes use of L/V sites for TOR effectiveness, and regular high speed tribometer runs to validate and optimize GF performance. Monitoring of the project to date indicate fuel savings (>5%) well in excess of those used to justify the project. AN - dot:88130 KW - Coefficient of friction KW - Wear KW - Fuels KW - Railroad transportation LA - English PB - International Heavy Haul Association PY - 2009-04-01 TI - Total Friction Management on Canadian Pacific M3 - Research Paper N1 - Canada N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88130 ER -
Top of Rail Friction Control: Reductions in Fuel and Greenhouse Gas Emissions

Cotter, John ;

Eadie, Don

2005-04-01 | PDF

In 2003, BC Rail and Kelsan Technologies carried out a project to quantify the effect of Top of Rail (TOR) Friction Control on fuel consumption and Greenhouse Gas (GHG) emissions by reducing the curving resistance of a standard 3 piece North American truck. Measurable savings were based on monitoring changes in diesel fuel consumption, as well as m ...

12/08/2025

Title : Top of Rail Friction Control: Reductions in Fuel and Greenhouse Gas Emissions Creator(s) : Cotter, John;Eadie, Don;Elvidge, David;Hooper, Norm;Roberts, Jay;Makowsky, Tony;Liu, Yan; Corporate Creator(s) : Kelsan Technologies Corp;BC Rail;National Research Council of Canada; Published Date : 2005-04-01 URL : https://rosap.ntl.bts.gov/view/dot/88129 Cotter, John et al. (2005). Top of Rail Friction Control: Reductions in Fuel and Greenhouse Gas Emissions. Cotter, John et al. "Top of Rail Friction Control: Reductions in Fuel and Greenhouse Gas Emissions" (2005) Cotter, John et al. "Top of Rail Friction Control: Reductions in Fuel and Greenhouse Gas Emissions" , 2005 Export RIS Citation Information. TY - Research Paper AU - Cotter, John AU - Eadie, Don AU - Elvidge, David AU - Hooper, Norm AU - Roberts, Jay AU - Makowsky, Tony AU - Liu, Yan A2 - Kelsan Technologies Corp A2 - BC Rail A2 - National Research Council of Canada AB - In 2003, BC Rail and Kelsan Technologies carried out a project to quantify the effect of Top of Rail (TOR) Friction Control on fuel consumption and Greenhouse Gas (GHG) emissions by reducing the curving resistance of a standard 3 piece North American truck. Measurable savings were based on monitoring changes in diesel fuel consumption, as well as mechanical drawbar forces. Results indicated a strong correlation between curve density and fuel savings when the test consist was under tractive effort. Calculated fuel savings ranged from 155 Liters/Million Ton-miles to a 744 Liters/Millions Ton-miles (2 to 12 %) on track ranging in curve density from 25 to 51 percent. Corresponding GHG Emission reductions (CO2) ranged from 0.3 metric tonnes per million ton-miles to 2 metric tonnes per million ton-miles. No fuel savings/ GHG emission reductions were achieved when the consist was under dynamic braking. AN - dot:88129 KW - Coefficient of friction KW - Rolling friction KW - Fuel conservation KW - Air quality management KW - Greenhouse gases LA - English PB - International Heavy Haul Association PY - 2005-04-01 TI - Top of Rail Friction Control: Reductions in Fuel and Greenhouse Gas Emissions M3 - Research Paper N1 - Canada N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88129 ER -
Inertial Tractive Effort as an Explanatory Variable in the Analysis of Locomotive Fuel Savings

Oldknow, Kevin ;

Cotter, John

2015-06-01 | PDF

The purpose of the work presented has been the development of an explanatory variable that characterizes train handling effects, allowing for the identification of changes in locomotive fuel consumption over a given territory (for example in response to Top of Rail Friction Modifier (TORFM) application) with improved confidence. To generate the exp ...

12/08/2025

Title : Inertial Tractive Effort as an Explanatory Variable in the Analysis of Locomotive Fuel Savings Creator(s) : Oldknow, Kevin;Cotter, John;Eadie, Don;Elvidge, David;Kennedy, Wayne;Nedunoori, Srini;Peters, John;Replogle, Justin;Ronasi, Hamed;Stevens, Rob;Weitzel, Loerella; Corporate Creator(s) : LB Foster Rail Technologies;Union Pacific Railroad;First Analytics; Published Date : 2015-06-01 URL : https://rosap.ntl.bts.gov/view/dot/88128 Oldknow, Kevin et al. (2015). Inertial Tractive Effort as an Explanatory Variable in the Analysis of Locomotive Fuel Savings. Oldknow, Kevin et al. "Inertial Tractive Effort as an Explanatory Variable in the Analysis of Locomotive Fuel Savings" (2015) Oldknow, Kevin et al. "Inertial Tractive Effort as an Explanatory Variable in the Analysis of Locomotive Fuel Savings" , 2015 Export RIS Citation Information. TY - Research Paper AU - Oldknow, Kevin AU - Cotter, John AU - Eadie, Don AU - Elvidge, David AU - Kennedy, Wayne AU - Nedunoori, Srini AU - Peters, John AU - Replogle, Justin AU - Ronasi, Hamed AU - Stevens, Rob AU - Weitzel, Loerella A2 - LB Foster Rail Technologies A2 - Union Pacific Railroad A2 - First Analytics AB - The purpose of the work presented has been the development of an explanatory variable that characterizes train handling effects, allowing for the identification of changes in locomotive fuel consumption over a given territory (for example in response to Top of Rail Friction Modifier (TORFM) application) with improved confidence. To generate the explanatory variable, the concept of Inertial Tractive Effort (ITE) was developed. Given the total instantaneous tractive effort (TE) dispatched by a locomotive consist to overcome all sources of resistance, ITE is an estimate of the portion spent overcoming inertial resistance to generate acceleration. Integrating ITE over time yields cumulative ITE (cITE), which is in essence an estimate of total energy spent on acceleration versus a train travelling at constant speed over the same territory. Analysis of data collected in revenue service on several Union Pacific coal routes has shown that cITE acts as an explanatory variable, effectively mitigating variability in the data and allowing for an improved confidence when analyzing the impacts of other variables such as TORFM application. With the incorporation of cITE as an explanatory variable in a multi-variable regression of locomotive fuel data collected over five months of revenue service operation on Union Pacific, the statistical power of the underlying model was improved to yield a P-value of 0.028 versus 0.202 otherwise (the corresponding fuel savings associated with TORFM application were estimated at 6.4%). The approach represents a novel and useful mechanism to handle fuel data variability, with the potential to underpin a broad range of analyses. AB - Please cite: Oldknow, K., et al. Inertial Tractive Effort as an Explanatory Variable in the Analysis of Locomotive Fuel Savings. 2015. AN - dot:88128 KW - Fuels KW - Costs KW - Railroad transportation KW - Alternate fuels KW - Rolling stock KW - Locomotives LA - English PB - International Heavy Haul Association PY - 2015-06-01 TI - Inertial Tractive Effort as an Explanatory Variable in the Analysis of Locomotive Fuel Savings M3 - Research Paper N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88128 ER -
Recent Advances in Top of Rail Onboard Locomotive Application

Cotter, J ;

VanderMarel, Joel

2017-09-01 | PDF

Managing the Top Of Rail (TOR) wheel/rail coefficient of friction, using friction modifiers (FM), has consistently demonstrated significant benefits to the heavy haul industry including fuel/energy savings, wheel & rail wear reduction, and reduced state of stress of the track infrastructure. Traditionally, the preferred method of FM application has ...

12/08/2025

Title : Recent Advances in Top of Rail Onboard Locomotive Application Creator(s) : Cotter, J;VanderMarel, Joel;Lu, X;Fan, P;Meng, X;Jia, J; Corporate Creator(s) : LB Foster Rail Technologies;Shuohuang Railway Development Co Ltd; Published Date : 2017-09-01 URL : https://rosap.ntl.bts.gov/view/dot/88127 Cotter, J et al. (2017). Recent Advances in Top of Rail Onboard Locomotive Application. Cotter, J et al. "Recent Advances in Top of Rail Onboard Locomotive Application" (2017) Cotter, J et al. "Recent Advances in Top of Rail Onboard Locomotive Application" , 2017 Export RIS Citation Information. TY - Research Paper AU - Cotter, J AU - VanderMarel, Joel AU - Lu, X AU - Fan, P AU - Meng, X AU - Jia, J A2 - LB Foster Rail Technologies A2 - Shuohuang Railway Development Co Ltd AB - Managing the Top Of Rail (TOR) wheel/rail coefficient of friction, using friction modifiers (FM), has consistently demonstrated significant benefits to the heavy haul industry including fuel/energy savings, wheel & rail wear reduction, and reduced state of stress of the track infrastructure. Traditionally, the preferred method of FM application has been trackside systems. However, in some situations, it is desirable that friction modifiers are applied from on-board a train set due to several different factors. Recently, Shuohaung Railroad have installed three (3) prototype on-board TOR dispensing systems on their SS4B locomotives and have been successfully operating them for the last three years. Field testing, conducted by the Chinese Academy of Rail Sciences, have demonstrated energy savings of approximately 5 %, lateral force reductions of 10-20 %, and following train benefits for non-TOR equipped train sets. Simple cost benefit analysis modelling is shown to favour on-board FM application over trackside FM application. AB - Please cite as: Cotter, J., et al. Recent Advances in Top of Rail Onboard Locomotive Application. 2017. AN - dot:88127 KW - Railroad tracks KW - Coefficient of friction KW - Field tests KW - Energy consumption KW - Benefit cost analysis KW - Railroad transportation KW - Rolling contact LA - English PB - International Heavy Haul Association PY - 2017-09-01 TI - Recent Advances in Top of Rail Onboard Locomotive Application M3 - Research Paper N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88127 ER -
Freight Car-Based Top of Rail Friction Modifier Application System

Cotter, John ;

Eadie, Don

2005-06-01 | PDF

This paper outlines a new application technology for top of rail (TOR) train mounted friction control, particularly suited for captive freight fleets. The spray application system is mounted on a revenue-generating freight car located immediately behind the trailing locomotive. Compared with locomotive mounted systems [1, 2, 3], the new approach pr ...

12/08/2025

Title : Freight Car-Based Top of Rail Friction Modifier Application System Creator(s) : Cotter, John;Eadie, Don;Elvidge, David;Bilodeau, Jocelyn;Michaud, Serge;Rioux, Yvon;Sirois, Gerard;Reiff, Richard; Corporate Creator(s) : Kelsan Technologies Corp;Quebec Cartier Mining Company;Technology Transportation Centre; Published Date : 2005-06-01 URL : https://rosap.ntl.bts.gov/view/dot/88126 Cotter, John et al. (2005). Freight Car-Based Top of Rail Friction Modifier Application System. Cotter, John et al. "Freight Car-Based Top of Rail Friction Modifier Application System" (2005) Cotter, John et al. "Freight Car-Based Top of Rail Friction Modifier Application System" , 2005 Export RIS Citation Information. TY - Research Paper AU - Cotter, John AU - Eadie, Don AU - Elvidge, David AU - Bilodeau, Jocelyn AU - Michaud, Serge AU - Rioux, Yvon AU - Sirois, Gerard AU - Reiff, Richard A2 - Kelsan Technologies Corp A2 - Quebec Cartier Mining Company A2 - Technology Transportation Centre AB - This paper outlines a new application technology for top of rail (TOR) train mounted friction control, particularly suited for captive freight fleets. The spray application system is mounted on a revenue-generating freight car located immediately behind the trailing locomotive. Compared with locomotive mounted systems [1, 2, 3], the new approach provides higher capital utilization, no impact on locomotive maintenance scheduling, and a simple but robust system. A prototype system has been successfully designed, installed, & field-tested on a revenue-generating ore car at QCM’s facility in Port Cartier, Quebec. As well as equipment performance, results are also described on lateral force reduction. AB - Please cite as: Cotter, J., et al. Freight Car-Based Top of Rail Friction Modifier Application System. 2005. AN - dot:88126 KW - Rolling stock KW - Friction KW - Field tests KW - Railroad transportation LA - English PB - International Heavy Haul Association PY - 2005-06-01 TI - Freight Car-Based Top of Rail Friction Modifier Application System M3 - Research Paper N1 - Canada N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88126 ER -
Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 9, Data Complete Through 11/28/2025

United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information

2025-12-03 | Special Issue - Weekly Motor Fuel Report | PDF

The Gasoline Product Supplied report offers insight on weekly fluctuation of the gasoline product supply, which is an important part of any analysis of construction trends, materials and operating costs associated with highway repair and construction, and changes in traffic volume. These data come directly from the Energy Information Administration ...

12/08/2025

Title : Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 9, Data Complete Through 11/28/2025 Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Published Date : 2025-12-03 Series : Special Issue - Weekly Motor Fuel Report URL : https://rosap.ntl.bts.gov/view/dot/88125 United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2025). Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 9, Data Complete Through 11/28/2025. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information "Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 9, Data Complete Through 11/28/2025" (2025) United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information "Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 9, Data Complete Through 11/28/2025" , 2025 Export RIS Citation Information. TY - Statistical Report A2 - United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information AB - The Gasoline Product Supplied report offers insight on weekly fluctuation of the gasoline product supply, which is an important part of any analysis of construction trends, materials and operating costs associated with highway repair and construction, and changes in traffic volume. These data come directly from the Energy Information Administration (EIA) website. The EIA publishes the average daily amount of gasoline supplied in barrels, which HPPI converts to an average number of gallons of gasoline per week. AN - dot:88125 KW - Fuel consumption KW - Gasoline KW - Supply KW - Traffic volume KW - Data collection KW - Data analysis LA - English PB - United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information PY - 2025-12-03 T2 - Special Issue - Weekly Motor Fuel Report TI - Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 9, Data Complete Through 11/28/2025 M3 - Statistical Report N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88125 ER -
Congressional Report Handout [Postcard]

United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology

2025-01-01 | PDF

This postcard describes two FHWA reports: "Best Practices for Corrosion Control and Mitigation" and "Industry-Recognized Corrosion Prevention Worker Certifications Effectiveness Evaluation."

12/08/2025

Title : Congressional Report Handout [Postcard] Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center Published Date : 2025-01-01 Report Number : FHWA-HRT-25-038 URL : https://rosap.ntl.bts.gov/view/dot/88124 United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology (2025). Congressional Report Handout [Postcard]. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology "Congressional Report Handout [Postcard]" (2025) United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology "Congressional Report Handout [Postcard]" , 2025 Export RIS Citation Information. TY - Booklet/Pamphlet A2 - United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology A3 - United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center AB - This postcard describes two FHWA reports: "Best Practices for Corrosion Control and Mitigation" and "Industry-Recognized Corrosion Prevention Worker Certifications Effectiveness Evaluation." AN - dot:88124 KW - Corrosion KW - Corrosion protection KW - Documents LA - English PB - United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology PY - 2025-01-01 SN - FHWA-HRT-25-038 TI - Congressional Report Handout [Postcard] M3 - Booklet/Pamphlet N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88124 ER -
Identification of Work Zone Crash Characteristics

Dissanayake, Sunanda ;

Akepati, Sreekanth Reddy

2009-09-01 | PDF

Since construction of most of the major highway networks in the United States has already been completed, the majority of current highway work includes maintenance and rehabilitation of those highways, during which work zones are generated. In these areas disruptions to regular traffic flow are inevitable and the safety of road users and highway wo ...

12/08/2025

Title : Identification of Work Zone Crash Characteristics Creator(s) : Dissanayake, Sunanda;Akepati, Sreekanth Reddy; Corporate Creator(s) : Kansas State University. Department of Civil Engineering Corporate Contributor(s) : Smart Work Zone Deployment Initiative;Iowa State University. Institute for Transportation;United States. Department of Transportation. Federal Highway Administration;Iowa. Department of Transportation; Published Date : 2009-09-01 URL : https://rosap.ntl.bts.gov/view/dot/88123 Dissanayake, Sunanda and Akepati, Sreekanth Reddy (2009). Identification of Work Zone Crash Characteristics. Dissanayake, Sunanda and Akepati, Sreekanth Reddy "Identification of Work Zone Crash Characteristics" (2009) Dissanayake, Sunanda and Akepati, Sreekanth Reddy "Identification of Work Zone Crash Characteristics" , 2009 Export RIS Citation Information. TY - Tech Report AU - Dissanayake, Sunanda AU - Akepati, Sreekanth Reddy A2 - Kansas State University. Department of Civil Engineering A3 - Smart Work Zone Deployment Initiative A3 - Iowa State University. Institute for Transportation A3 - United States. Department of Transportation. Federal Highway Administration A3 - Iowa. Department of Transportation AB - Since construction of most of the major highway networks in the United States has already been completed, the majority of current highway work includes maintenance and rehabilitation of those highways, during which work zones are generated. In these areas disruptions to regular traffic flow are inevitable and the safety of road users and highway workers is a major concern. In the U.S. for the past five years from 2002-2006, there were nearly 5,406 fatalities occurring in or near work zones. Among other reasons, this may be partly due to ineffective implementation of preventive measures at work zones and shows that more effort must be made in order to improve safety in work zones for both highway users and workers. AN - dot:88123 KW - Work zone safety KW - Highway safety KW - Work zones KW - Crash characteristics LA - English PB - Smart Work Zone Deployment Initiative PY - 2009-09-01 TI - Identification of Work Zone Crash Characteristics M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88123 ER -
Development of a Work Zone Training Program

Bai, Yong ;

Firman, Umar

2009-08-01 | PDF

Safety in highway work zones has been a major concern for many decades. Over the years, government agencies and highway industry have developed work zone safety training programs to educate general public, professionals, and government employers. Existing training programs are conducted in the old fashion classroom setting which has some disadvanta ...

12/08/2025

Title : Development of a Work Zone Training Program Creator(s) : Bai, Yong;Firman, Umar;Huan, Luke;Wang, Xiaohong; Corporate Creator(s) : University of Kansas Corporate Contributor(s) : Smart Work Zone Deployment Initiative;Iowa. Department of Transportation;United States. Department of Transportation. Federal Highway Administration;Iowa State University. Institute for Transportation; Published Date : 2009-08-01 URL : https://rosap.ntl.bts.gov/view/dot/88122 Bai, Yong et al. (2009). Development of a Work Zone Training Program. Bai, Yong et al. "Development of a Work Zone Training Program" (2009) Bai, Yong et al. "Development of a Work Zone Training Program" , 2009 Export RIS Citation Information. TY - Tech Report AU - Bai, Yong AU - Firman, Umar AU - Huan, Luke AU - Wang, Xiaohong A2 - University of Kansas A3 - Smart Work Zone Deployment Initiative A3 - Iowa. Department of Transportation A3 - United States. Department of Transportation. Federal Highway Administration A3 - Iowa State University. Institute for Transportation AB - Safety in highway work zones has been a major concern for many decades. Over the years, government agencies and highway industry have developed work zone safety training programs to educate general public, professionals, and government employers. Existing training programs are conducted in the old fashion classroom setting which has some disadvantages such as high travel costs and locations far away from jobs. The objective of this research project was to develop a web-based training program for highway work zone safety. The developed program was built on advanced computer science technologies and delivered via Internet so that a trainee can access the training materials at any time and at any location as long as there is an Internet service. Training topics cover sign, marking, highway traffic signal, and temporary traffic control. At the end of training, a trainee will have an opportunity to take an on-line quiz with 50 questions. A certificate will be sent to the trainee via e-mail if that person’s test score is higher than the passing grade. The developed web-based training program has several advantages. First, using the developed program will eliminate the travel costs for the instructors and trainees. Second, both the instructors and trainees will spend less time away from their jobs. Third, the developed program can be easily modified and updated with any new information. Finally, trainees can learn the training materials at their own pace. The self pace format can be easily fitted in a busy working schedule. AN - dot:88122 ET - Final Report, July 2008-June 2009 KW - Work zone safety KW - Highway safety KW - Training programs LA - English PB - Smart Work Zone Deployment Initiative PY - 2009-08-01 TI - Development of a Work Zone Training Program M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88122 ER -
Report of Geological Investigation of Two Rock Cuts & One Tunnel Site in Carlin Canyon, Elko County, Nevada

Cordova, Tom

1963-01-17 | PDF

The Carlin Canyon area is located at the intersection of the westward-flowing r Humboldt River and an unnamed range of hills. These hills trend north-south and are probably a northern extension of the Pinyon Range. In the vicinity of the examined area, Mississippian chert-pebble conglomerates (Tonka fm.) are separated by an angular unconformity fro ...

12/08/2025

Title : Report of Geological Investigation of Two Rock Cuts & One Tunnel Site in Carlin Canyon, Elko County, Nevada Creator(s) : Cordova, Tom Corporate Creator(s) : State of Nevada. Department of Highways Published Date : 1963-01-17 Report Number : Control Section: EL-81 E, A, No, 70012•2 URL : https://rosap.ntl.bts.gov/view/dot/88121 Cordova, Tom (1963). Report of Geological Investigation of Two Rock Cuts & One Tunnel Site in Carlin Canyon, Elko County, Nevada. Cordova, Tom "Report of Geological Investigation of Two Rock Cuts & One Tunnel Site in Carlin Canyon, Elko County, Nevada" (1963) Cordova, Tom "Report of Geological Investigation of Two Rock Cuts & One Tunnel Site in Carlin Canyon, Elko County, Nevada" , 1963 Export RIS Citation Information. TY - Tech Report AU - Cordova, Tom A2 - State of Nevada. Department of Highways AB - The Carlin Canyon area is located at the intersection of the westward-flowing r Humboldt River and an unnamed range of hills. These hills trend north-south and are probably a northern extension of the Pinyon Range. In the vicinity of the examined area, Mississippian chert-pebble conglomerates (Tonka fm.) are separated by an angular unconformity from the overlying (Strathearn fm.) calcarenites of Late Pennsylvanian age. AN - dot:88121 KW - Earthwork KW - Cutting (Earthwork) KW - Tunneling KW - Geotechnical engineering KW - Properties of materials KW - Coarse aggregates LA - English PB - State of Nevada. Department of Highways PY - 1963-01-17 SN - Control Section: EL-81 E, A, No, 70012•2 TI - Report of Geological Investigation of Two Rock Cuts & One Tunnel Site in Carlin Canyon, Elko County, Nevada M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88121 ER -
Microsimulation of Freeway Work Zones to Assess Flow and Capacity

Horowitz, Alan J.

2008-08-21 | PDF

This research applied microscopic traffic simulation to freeway work zones to further understand the relationship between traffic variables and capacity. There are two distinct forms of capacity depending upon the flow regime: capacity while traffic is free flowing and capacity while traffic is queued. Actual work zones from the Milwaukee freeway s ...

12/08/2025

Title : Microsimulation of Freeway Work Zones to Assess Flow and Capacity Creator(s) : Horowitz, Alan J. Corporate Creator(s) : University of Wisconsin--Milwaukee. Center for Urban Transportation Studies Corporate Contributor(s) : Smart Work Zone Deployment Initiative Published Date : 2008-08-21 URL : https://rosap.ntl.bts.gov/view/dot/88120 Horowitz, Alan J. (2008). Microsimulation of Freeway Work Zones to Assess Flow and Capacity. Horowitz, Alan J. "Microsimulation of Freeway Work Zones to Assess Flow and Capacity" (2008) Horowitz, Alan J. "Microsimulation of Freeway Work Zones to Assess Flow and Capacity" , 2008 Export RIS Citation Information. TY - Tech Report AU - Horowitz, Alan J. A2 - University of Wisconsin--Milwaukee. Center for Urban Transportation Studies A3 - Smart Work Zone Deployment Initiative AB - This research applied microscopic traffic simulation to freeway work zones to further understand the relationship between traffic variables and capacity. There are two distinct forms of capacity depending upon the flow regime: capacity while traffic is free flowing and capacity while traffic is queued. Actual work zones from the Milwaukee freeway systems were varied by simulation to obtain relationships between capacity and truck volume, lane distribution, ramp location, ramp volumes, grade and merging schemes. Capacity was found to be a random variable, even when all prevailing conditions are held constant, because of stochastic variations in vehicle mix, lane distribution and driver behavior. Capacity was found to be significantly affected by prevailing conditions of grade, vehicle mix, and the lane distribution of trucks. AN - dot:88120 ET - Final Report KW - Microscopic traffic flow KW - Traffic simulation KW - Work zones KW - Traffic flow KW - Highway capacity LA - English PB - Smart Work Zone Deployment Initiative PY - 2008-08-21 TI - Microsimulation of Freeway Work Zones to Assess Flow and Capacity M3 - Tech Report N1 - United States N1 - 08588 UR - https://rosap.ntl.bts.gov/view/dot/88120 ER -
Federal Highway Administration (FHWA) Research and Technology Programs [December 2023]

United States. Department of Transportation. Federal Highway Administration

2023-12-01 | PDF

FHWA’s Research and Technology (R&T) program is largely governed and shaped by Title 23 United States Code (U.S.C.) § 503, which establishes the Highway Research and Development (HRD) Program and Technology and Innovation Deployment Program (TIDP). HRD funds the research and development (R&D) portion of FHWA’s R&T program, while TIDP governs the te ...

12/08/2025

Title : Federal Highway Administration (FHWA) Research and Technology Programs [December 2023] Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center Published Date : 2023-12-01 Report Number : FHWA-HRT-24-037 URL : https://rosap.ntl.bts.gov/view/dot/88119 United States. Department of Transportation. Federal Highway Administration (2023). Federal Highway Administration (FHWA) Research and Technology Programs [December 2023]. United States. Department of Transportation. Federal Highway Administration "Federal Highway Administration (FHWA) Research and Technology Programs [December 2023]" (2023) United States. Department of Transportation. Federal Highway Administration "Federal Highway Administration (FHWA) Research and Technology Programs [December 2023]" , 2023 Export RIS Citation Information. TY - Brief A2 - United States. Department of Transportation. Federal Highway Administration A3 - United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center AB - FHWA’s Research and Technology (R&T) program is largely governed and shaped by Title 23 United States Code (U.S.C.) § 503, which establishes the Highway Research and Development (HRD) Program and Technology and Innovation Deployment Program (TIDP). HRD funds the research and development (R&D) portion of FHWA’s R&T program, while TIDP governs the technology transfer (T2) portion and initiatives that accelerate the implementation and deployment of research results. AB - The Bipartisan Infrastructure Law (BIL) provides $257 million annually to fund FHWA’s R&T Program. Of that $257 million, $147 million goes to HRD programs and $110 million to TIDP programs. The U.S.C. and BIL establish six legislative set-aside programs, and FHWA has established seven discretionary research programs. AN - dot:88119 KW - Research projects KW - Research KW - Technology KW - Laboratories LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2023-12-01 SN - FHWA-HRT-24-037 TI - Federal Highway Administration (FHWA) Research and Technology Programs [December 2023] M3 - Brief N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88119 ER -
Utilizing Connected Vehicle Data to Identify Impacts of Congestion on Adjacent Agencies

Driscoll, Thomas M

;

Sakhare, Rahul Suryakant

2025-09-23 | PDF

Most state agencies have good practices for monitoring congestion on roadways within their jurisdiction. Many urbanized areas span state boundaries, where incidents, work zones, and congestion often impact neighboring states or municipalities. States with urbanized borders that experience congestion often develop informal communication procedures a ...

12/08/2025

Title : Utilizing Connected Vehicle Data to Identify Impacts of Congestion on Adjacent Agencies Creator(s) : Driscoll, Thomas M;Sakhare, Rahul Suryakant;Desai, Jairaj;Bullock, Darcy M.; Corporate Creator(s) : Purdue University. Lyles Department of Civil Engineering Published Date : 2025-09-23 DOI : https://doi.org/10.4236/jtts.2025.154024 Driscoll, Thomas M et al. (2025). Utilizing Connected Vehicle Data to Identify Impacts of Congestion on Adjacent Agencies. https://doi.org/10.4236/jtts.2025.154024 Driscoll, Thomas M et al. "Utilizing Connected Vehicle Data to Identify Impacts of Congestion on Adjacent Agencies" (2025), https://doi.org/10.4236/jtts.2025.154024 Driscoll, Thomas M et al. "Utilizing Connected Vehicle Data to Identify Impacts of Congestion on Adjacent Agencies" , 2025, https://doi.org/10.4236/jtts.2025.154024 Export RIS Citation Information. TY - Journal Article AU - Driscoll, Thomas M AU - Sakhare, Rahul Suryakant AU - Desai, Jairaj AU - Bullock, Darcy M. A2 - Purdue University. Lyles Department of Civil Engineering AB - Most state agencies have good practices for monitoring congestion on roadways within their jurisdiction. Many urbanized areas span state boundaries, where incidents, work zones, and congestion often impact neighboring states or municipalities. States with urbanized borders that experience congestion often develop informal communication procedures and occasionally share a few traffic management cameras. However, system integration to share between adjacent states can be challenging, particularly for work zones and incidents. Commercial connected vehicle data (CV) provides real-time probes for corridors and can be used to monitor traffic data either within a state or across the border into an adjacent state with no requirement for institutional interfaces. For example, Indiana has 15 interstate crossings into four different states. As a matter of practice, Indiana purchases connected vehicle data that extends 10 miles into all neighboring states. This provides an ability to monitor work zones, incidents, and re-occurring congestion in adjacent states that may impact Indiana, as well as understanding when Indiana freeway congestion impacts neighboring states. This paper presents case studies that explain how cross border queueing can be monitored and summarized over a year for the I-94, I-90, I-70, I-69, I-65, I-64, I-275 and I-265 Indiana Interstates. The inbound IL to IN segment of I-94 had the largest median hours of queuing with 69.1 hours per week. The outbound IN to KY segment of I-275 departing Indiana had the largest median hours of queuing with 19.5 hours per week. AB - This is an open access article under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) license https://creativecommons.org/licenses/by/4.0/. Please cite this article as: Driscoll, T.M., Sakhare, R.S., Desai, J. and Bullock, D.M. (2025) Utilizing Connected Vehicle Data to Identify Impacts of Congestion on Adjacent Agencies. Journal of Transportation Technologies , 15, 522-541. https://doi.org/10.4236/jtts.2025.154024 AN - dot:88118 DO - https://doi.org/10.4236/jtts.2025.154024 KW - Connected vehicles KW - Freeways KW - Traffic congestion KW - Mobility KW - Border Queueing LA - English PB - Scientific Research Publishing PY - 2025-09-23 TI - Utilizing Connected Vehicle Data to Identify Impacts of Congestion on Adjacent Agencies M3 - Journal Article N1 - United States N1 - 69A3552348305 N1 - Open Access; https://creativecommons.org/licenses/by/4.0/ UR - https://rosap.ntl.bts.gov/view/dot/88118 ER -
IHSDM Resource List [December 2023]

United States. Department of Transportation. Federal Highway Administration

2023-12-01 | PDF

A product of the Federal Highway Administration’s (FHWA's) Safety Research and Development (R&D)Program, the Interactive Highway Safety Design Model (IHSDM) is a suite of safety analysis toolsdesigned to evaluate the safety and operational effects of geometric-design decisions on highways.

12/08/2025

Title : IHSDM Resource List [December 2023] Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center Published Date : 2023-12-01 Report Number : FHWA-HRT-24-008 URL : https://rosap.ntl.bts.gov/view/dot/88117 United States. Department of Transportation. Federal Highway Administration (2023). IHSDM Resource List [December 2023]. United States. Department of Transportation. Federal Highway Administration "IHSDM Resource List [December 2023]" (2023) United States. Department of Transportation. Federal Highway Administration "IHSDM Resource List [December 2023]" , 2023 Export RIS Citation Information. TY - Booklet/Pamphlet A2 - United States. Department of Transportation. Federal Highway Administration A3 - United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center AB - A product of the Federal Highway Administration’s (FHWA's) Safety Research and Development (R&D) AB - Program, the Interactive Highway Safety Design Model (IHSDM) is a suite of safety analysis tools AB - designed to evaluate the safety and operational effects of geometric-design decisions on highways. AN - dot:88117 KW - Highway safety KW - Design KW - Traffic models KW - Safety analysis LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2023-12-01 SN - FHWA-HRT-24-008 TI - IHSDM Resource List [December 2023] M3 - Booklet/Pamphlet N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88117 ER -
Federal Highway Administration (FHWA): Research and Technology Updates Newsletter - May 2023 Spring Issue

United States. Department of Transportation. Federal Highway Administration

2023-05-01 | PDF

A newsletter about research, development, and technology (RD&T) at the U.S. Department of Transportation’s (USDOT) Federal Highway Administration (FHWA).

12/08/2025

Title : Federal Highway Administration (FHWA): Research and Technology Updates Newsletter - May 2023 Spring Issue Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center Published Date : 2023-05-01 Report Number : FHWA-HRT-23-095 URL : https://rosap.ntl.bts.gov/view/dot/88116 United States. Department of Transportation. Federal Highway Administration (2023). Federal Highway Administration (FHWA): Research and Technology Updates Newsletter - May 2023 Spring Issue. United States. Department of Transportation. Federal Highway Administration "Federal Highway Administration (FHWA): Research and Technology Updates Newsletter - May 2023 Spring Issue" (2023) United States. Department of Transportation. Federal Highway Administration "Federal Highway Administration (FHWA): Research and Technology Updates Newsletter - May 2023 Spring Issue" , 2023 Export RIS Citation Information. TY - Newsletters A2 - United States. Department of Transportation. Federal Highway Administration A3 - United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center AB - A newsletter about research, development, and technology (RD&T) at the U.S. Department of Transportation’s (USDOT) Federal Highway Administration (FHWA). AN - dot:88116 KW - Periodicals KW - Technological innovations KW - Research reports KW - Development LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2023-05-01 SN - FHWA-HRT-23-095 TI - Federal Highway Administration (FHWA): Research and Technology Updates Newsletter - May 2023 Spring Issue M3 - Newsletters N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88116 ER -
LTBP News: Spring 2023

United States. Department of Transportation. Federal Highway Administration

2023-03-01 | PDF

The Federal Highway Administration's Long-Term Bridge Performance (LTBP) program issues a newsletter to inform you about the progress and activities of the program. Brief updates on progress in important program activities are provided, including data collection, data releases, new products and publications, and data analysis.

12/08/2025

Title : LTBP News: Spring 2023 Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center Published Date : 2023-03-01 Report Number : FHWA-HRT-23-082 URL : https://rosap.ntl.bts.gov/view/dot/88115 United States. Department of Transportation. Federal Highway Administration (2023). LTBP News: Spring 2023. United States. Department of Transportation. Federal Highway Administration "LTBP News: Spring 2023" (2023) United States. Department of Transportation. Federal Highway Administration "LTBP News: Spring 2023" , 2023 Export RIS Citation Information. TY - Newsletters A2 - United States. Department of Transportation. Federal Highway Administration A3 - United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center AB - The Federal Highway Administration's Long-Term Bridge Performance (LTBP) program issues a newsletter to inform you about the progress and activities of the program. Brief updates on progress in important program activities are provided, including data collection, data releases, new products and publications, and data analysis. AN - dot:88115 KW - Bridges KW - Infrastructure KW - Performance KW - Data collection LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2023-03-01 SN - FHWA-HRT-23-082 TI - LTBP News: Spring 2023 M3 - Newsletters N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88115 ER -
LTPP Newsletter - May 2023 - Spring Issue

Long-Term Pavement Performance Program (U.S.)

2023-05-01 | PDF

The Federal Highway Administration's Long-Term Pavement Performance (LTPP) program issues a triannual newsletter to inform you about the progress and activities of the program. Brief updates on progress in important program activities are provided, including data collection, data releases, new products and publications, pooled fund studies, and dat ...

12/08/2025

Title : LTPP Newsletter - May 2023 - Spring Issue Corporate Creator(s) : Long-Term Pavement Performance Program (U.S.) Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration;United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center; Published Date : 2023-05-01 Report Number : FHWA-HRT-23-079 URL : https://rosap.ntl.bts.gov/view/dot/88114 Long-Term Pavement Performance Program (U.S.) (2023). LTPP Newsletter - May 2023 - Spring Issue. Long-Term Pavement Performance Program (U.S.) "LTPP Newsletter - May 2023 - Spring Issue" (2023) Long-Term Pavement Performance Program (U.S.) "LTPP Newsletter - May 2023 - Spring Issue" , 2023 Export RIS Citation Information. TY - Newsletters A2 - Long-Term Pavement Performance Program (U.S.) A3 - United States. Department of Transportation. Federal Highway Administration A3 - United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center AB - The Federal Highway Administration's Long-Term Pavement Performance (LTPP) program issues a triannual newsletter to inform you about the progress and activities of the program. Brief updates on progress in important program activities are provided, including data collection, data releases, new products and publications, pooled fund studies, and data analysis. AN - dot:88114 KW - Pavement performance KW - Planning KW - Research projects KW - Data collection KW - Data analysis KW - Program management LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2023-05-01 SN - FHWA-HRT-23-079 TI - LTPP Newsletter - May 2023 - Spring Issue M3 - Newsletters N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88114 ER -
Research on Automated Vehicle (AV) Readiness: Infrastructure Funding, Timing Challenges, and Solutions

United States. Department of Transportation. Federal Highway Administration

2023-01-01 | PDF

The Federal Highway Administration (FHWA) will host a public AV readiness webinar on infrastructure needed for and impacted by the deployment of AVs.

12/08/2025

Title : Research on Automated Vehicle (AV) Readiness: Infrastructure Funding, Timing Challenges, and Solutions Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center Published Date : 2023-01-01 Report Number : FHWA-HRT-23-069 URL : https://rosap.ntl.bts.gov/view/dot/88113 United States. Department of Transportation. Federal Highway Administration (2023). Research on Automated Vehicle (AV) Readiness: Infrastructure Funding, Timing Challenges, and Solutions. United States. Department of Transportation. Federal Highway Administration "Research on Automated Vehicle (AV) Readiness: Infrastructure Funding, Timing Challenges, and Solutions" (2023) United States. Department of Transportation. Federal Highway Administration "Research on Automated Vehicle (AV) Readiness: Infrastructure Funding, Timing Challenges, and Solutions" , 2023 Export RIS Citation Information. TY - Booklet/Pamphlet A2 - United States. Department of Transportation. Federal Highway Administration A3 - United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center AB - The Federal Highway Administration (FHWA) will host a public AV readiness webinar on infrastructure needed for and impacted by the deployment of AVs. AN - dot:88113 KW - Intelligent vehicles KW - Infrastructure KW - Vehicle to infrastructure communications LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2023-01-01 SN - FHWA-HRT-23-069 TI - Research on Automated Vehicle (AV) Readiness: Infrastructure Funding, Timing Challenges, and Solutions M3 - Booklet/Pamphlet N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88113 ER -
2024 Transportation Pooled Fund Excellence Awards Program Nomination Form

United States. Department of Transportation. Federal Highway Administration

2023-01-01 | PDF

The Transportation Pooled Fund (TPF) Excellence Awards Program highlights the importance of meaningful collaboration and partnership in transportation research by recognizing TPF studies that have significantly advanced national research efforts in the areas of safety, economic growth, equity, climate solutions, and/or transformation. Administered ...

12/08/2025

Title : 2024 Transportation Pooled Fund Excellence Awards Program Nomination Form Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center;Transportation Pooled Fund Program;American Association of State Highway and Transportation Officials (AASHTO); Published Date : 2023-01-01 Report Number : FHWA-HRT-23-067 URL : https://rosap.ntl.bts.gov/view/dot/88112 United States. Department of Transportation. Federal Highway Administration (2023). 2024 Transportation Pooled Fund Excellence Awards Program Nomination Form. United States. Department of Transportation. Federal Highway Administration "2024 Transportation Pooled Fund Excellence Awards Program Nomination Form" (2023) United States. Department of Transportation. Federal Highway Administration "2024 Transportation Pooled Fund Excellence Awards Program Nomination Form" , 2023 Export RIS Citation Information. TY - Booklet/Pamphlet A2 - United States. Department of Transportation. Federal Highway Administration A3 - United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center A3 - Transportation Pooled Fund Program A3 - American Association of State Highway and Transportation Officials (AASHTO) AB - The Transportation Pooled Fund (TPF) Excellence Awards Program highlights the importance of meaningful collaboration and partnership in transportation research by recognizing TPF studies that have significantly advanced national research efforts in the areas of safety, economic growth, equity, climate solutions, and/or transformation. Administered through a partnership between the Federal Highway Administration (FHWA) and the American Association of State Highway and Transportation Officials Research Advisory Committee, the biennial TPF Excellence Award will recognize two TPF studies, with at least one led by a State department of transportation (DOT). AN - dot:88112 KW - Pooled funds KW - Awards KW - Research projects LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2023-01-01 SN - FHWA-HRT-23-067 TI - 2024 Transportation Pooled Fund Excellence Awards Program Nomination Form M3 - Booklet/Pamphlet N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88112 ER -
Long-Term Pavement Performance (LTPP) Program Presents: Demonstration of LTPP Analysis-Ready Materials Dataset (ARMAD)

United States. Department of Transportation. Federal Highway Administration

2023-01-01 | PDF

Please join the Federal Highway Administration for a discussion on the LTPP program's effort to create analysis-ready datasets for customers. The primary intent of this effort is to make the data from the LTPP InfoPave™ Web portal easier to access and use.

12/08/2025

Title : Long-Term Pavement Performance (LTPP) Program Presents: Demonstration of LTPP Analysis-Ready Materials Dataset (ARMAD) Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center Published Date : 2023-01-01 Report Number : FHWA-HRT-23-066 URL : https://rosap.ntl.bts.gov/view/dot/88111 United States. Department of Transportation. Federal Highway Administration (2023). Long-Term Pavement Performance (LTPP) Program Presents: Demonstration of LTPP Analysis-Ready Materials Dataset (ARMAD). United States. Department of Transportation. Federal Highway Administration "Long-Term Pavement Performance (LTPP) Program Presents: Demonstration of LTPP Analysis-Ready Materials Dataset (ARMAD)" (2023) United States. Department of Transportation. Federal Highway Administration "Long-Term Pavement Performance (LTPP) Program Presents: Demonstration of LTPP Analysis-Ready Materials Dataset (ARMAD)" , 2023 Export RIS Citation Information. TY - Booklet/Pamphlet A2 - United States. Department of Transportation. Federal Highway Administration A3 - United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center AB - Please join the Federal Highway Administration for a discussion on the LTPP program's effort to create analysis-ready datasets for customers. The primary intent of this effort is to make the data from the LTPP InfoPave™ Web portal easier to access and use. AN - dot:88111 KW - Perpetual pavements KW - Infrastructure KW - Pavement performance KW - Education and training LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2023-01-01 SN - FHWA-HRT-23-066 TI - Long-Term Pavement Performance (LTPP) Program Presents: Demonstration of LTPP Analysis-Ready Materials Dataset (ARMAD) M3 - Booklet/Pamphlet N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88111 ER -
Long-Term Pavement Performance (LTPP) Program Presents: NCHRP 20-50(20) Project Findings and Products Webinar: Weigh-in-Motion (WIM) Sensor and Array Selection Tool and WIM Site Assessment Tool

United States. Department of Transportation. Federal Highway Administration

2023-01-01 | PDF

The Federal Highway Administration (FHWA) invites WIM data collectors and users to attend three virtual workshops (on April 12, 19, and 26, 2023) discussing the practical tools and guidance for collecting high-quality WIM data developed under the National Cooperative Highway Research Program (NCHRP) 20-50(20) project.

12/08/2025

Title : Long-Term Pavement Performance (LTPP) Program Presents: NCHRP 20-50(20) Project Findings and Products Webinar: Weigh-in-Motion (WIM) Sensor and Array Selection Tool and WIM Site Assessment Tool Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center Published Date : 2023-01-01 Report Number : FHWA-HRT-23-062 URL : https://rosap.ntl.bts.gov/view/dot/88110 United States. Department of Transportation. Federal Highway Administration (2023). Long-Term Pavement Performance (LTPP) Program Presents: NCHRP 20-50(20) Project Findings and Products Webinar: Weigh-in-Motion (WIM) Sensor and Array Selection Tool and WIM Site Assessment Tool. United States. Department of Transportation. Federal Highway Administration "Long-Term Pavement Performance (LTPP) Program Presents: NCHRP 20-50(20) Project Findings and Products Webinar: Weigh-in-Motion (WIM) Sensor and Array Selection Tool and WIM Site Assessment Tool" (2023) United States. Department of Transportation. Federal Highway Administration "Long-Term Pavement Performance (LTPP) Program Presents: NCHRP 20-50(20) Project Findings and Products Webinar: Weigh-in-Motion (WIM) Sensor and Array Selection Tool and WIM Site Assessment Tool" , 2023 Export RIS Citation Information. TY - Booklet/Pamphlet A2 - United States. Department of Transportation. Federal Highway Administration A3 - United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center AB - The Federal Highway Administration (FHWA) invites WIM data collectors and users to attend three virtual workshops (on April 12, 19, and 26, 2023) discussing the practical tools and guidance for collecting high-quality WIM data developed under the National Cooperative Highway Research Program (NCHRP) 20-50(20) project. AN - dot:88110 KW - Perpetual pavements KW - Infrastructure KW - Pavement performance KW - Education and training KW - Weigh in motion LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2023-01-01 SN - FHWA-HRT-23-062 TI - Long-Term Pavement Performance (LTPP) Program Presents: NCHRP 20-50(20) Project Findings and Products Webinar: Weigh-in-Motion (WIM) Sensor and Array Selection Tool and WIM Site Assessment Tool M3 - Booklet/Pamphlet N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88110 ER -
Long-Term Infrastructure Performance (LTIP) Team Presents: Coatings and Corrosion Laboratory (CCL) Updates

United States. Department of Transportation. Federal Highway Administration

2023-01-01 | PDF

Please join this discussion on updates to the Federal Highway Administration’s CCL.

12/08/2025

Title : Long-Term Infrastructure Performance (LTIP) Team Presents: Coatings and Corrosion Laboratory (CCL) Updates Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center Published Date : 2023-01-01 Report Number : FHWA-HRT-23-061 URL : https://rosap.ntl.bts.gov/view/dot/88109 United States. Department of Transportation. Federal Highway Administration (2023). Long-Term Infrastructure Performance (LTIP) Team Presents: Coatings and Corrosion Laboratory (CCL) Updates. United States. Department of Transportation. Federal Highway Administration "Long-Term Infrastructure Performance (LTIP) Team Presents: Coatings and Corrosion Laboratory (CCL) Updates" (2023) United States. Department of Transportation. Federal Highway Administration "Long-Term Infrastructure Performance (LTIP) Team Presents: Coatings and Corrosion Laboratory (CCL) Updates" , 2023 Export RIS Citation Information. TY - Booklet/Pamphlet A2 - United States. Department of Transportation. Federal Highway Administration A3 - United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center AB - Please join this discussion on updates to the Federal Highway Administration’s CCL. AN - dot:88109 KW - Perpetual pavements KW - Infrastructure KW - Pavement performance KW - Education and training KW - Laboratories KW - Coatings KW - Corrosion LA - English PB - United States. Department of Transportation. Federal Highway Administration PY - 2023-01-01 SN - FHWA-HRT-23-061 TI - Long-Term Infrastructure Performance (LTIP) Team Presents: Coatings and Corrosion Laboratory (CCL) Updates M3 - Booklet/Pamphlet N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88109 ER -
Traffic Volume Trends: October 2025

United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information

2025-12-01 | Traffic Volume Trends | PDF

Traffic Volume Trends is a monthly report based on hourly traffic count data reported by the States. These data are collected at approximately 5,000 continuous traffic counting locations nationwide and are used to estimate the percent change in traffic for the current month compared with the same month in the previous year. Estimates are re-adjuste ...

12/08/2025

Title : Traffic Volume Trends: October 2025 Corporate Creator(s) : United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Published Date : 2025-12-01 Series : Traffic Volume Trends URL : https://rosap.ntl.bts.gov/view/dot/88108 United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2025). Traffic Volume Trends: October 2025. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information "Traffic Volume Trends: October 2025" (2025) United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information "Traffic Volume Trends: October 2025" , 2025 Export RIS Citation Information. TY - Statistical Report A2 - United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information AB - Traffic Volume Trends is a monthly report based on hourly traffic count data reported by the States. These data are collected at approximately 5,000 continuous traffic counting locations nationwide and are used to estimate the percent change in traffic for the current month compared with the same month in the previous year. Estimates are re-adjusted annually to match the vehicle miles of travel from the Highway Performance Monitoring System and are continually updated with additional data. AN - dot:88108 KW - Traffic volume KW - Trend (Statistics) KW - Traffic counts KW - Data collection KW - Traffic surveillance LA - English PB - United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information PY - 2025-12-01 T2 - Traffic Volume Trends TI - Traffic Volume Trends: October 2025 M3 - Statistical Report N1 - United States N1 - Public Domain UR - https://rosap.ntl.bts.gov/view/dot/88108 ER -
National Transportation Atlas Database (NTAD): DOT Regions - National Transportation Response and Recovery Program (NTRRP) Regions 2019-Present [dataset]

United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization ...

2019-01-01 | National Transportation Atlas Database (NTAD) | ZIP

The DOT Regions - National Transportation Response and Recovery Program (NTRRP) Regions 2019-Present dataset is from the Bureau of Transportation Statistics (BTS), and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’ (BTS's) National Transportation Atlas Database (NTAD). The USDOT Regions dataset contain ...

12/08/2025

Supporting Files

Title : National Transportation Atlas Database (NTAD): DOT Regions - National Transportation Response and Recovery Program (NTRRP) Regions 2019-Present [dataset] Corporate Creator(s) : United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization;United States. Department of Transportation. Bureau of Transportation Statistics; Published Date : 2019-01-01 Series : National Transportation Atlas Database (NTAD) DOI : https://doi.org/10.21949/1403468 United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization (2019). National Transportation Atlas Database (NTAD): DOT Regions - National Transportation Response and Recovery Program (NTRRP) Regions 2019-Present [dataset]. https://doi.org/10.21949/1403468 United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization "National Transportation Atlas Database (NTAD): DOT Regions - National Transportation Response and Recovery Program (NTRRP) Regions 2019-Present [dataset]" (2019), https://doi.org/10.21949/1403468 United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization "National Transportation Atlas Database (NTAD): DOT Regions - National Transportation Response and Recovery Program (NTRRP) Regions 2019-Present [dataset]" , 2019, https://doi.org/10.21949/1403468 Export RIS Citation Information. TY - Dataset A2 - United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization A2 - United States. Department of Transportation. Bureau of Transportation Statistics AB - The DOT Regions - National Transportation Response and Recovery Program (NTRRP) Regions 2019-Present dataset is from the Bureau of Transportation Statistics (BTS), and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’ (BTS's) National Transportation Atlas Database (NTAD). The USDOT Regions dataset contains the designated regions for each Operating Administration (OA) within the US Department of Transportation (USDOT). Included in the attribute table for each OA are the region name, region number, and office location, where applicable. There are no regions for the entirety of the USDOT. AB - National Transportation Library (NTL) Curation Note: This dataset has been curated to CoreTrustSeal's curation level "A. Active Preservation". To find out more information on CoreTrustSeal's curation levels, please consult their "Curation & Preservation Levels" CoreTrustSeal Discussion Paper" (https://doi.org/10.5281/zenodo.11476980). NTL staff last accessed this dataset at its repository URL on 2025-12-03. If, in the future, you have trouble accessing this dataset, please email NTLDataCurator@dot.gov describing your problem. NTL staff will do its best to assist you at that time. AN - dot:88107 DO - https://doi.org/10.21949/1403468 KW - Data KW - Data collection KW - Regions KW - Areas and regions KW - Emergency management LA - English PB - United States. Department of Transportation. Bureau of Transportation Statistics PY - 2019-01-01 T2 - National Transportation Atlas Database (NTAD) TI - National Transportation Atlas Database (NTAD): DOT Regions - National Transportation Response and Recovery Program (NTRRP) Regions 2019-Present [dataset] M3 - Dataset N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88107 ER -
National Transportation Atlas Database (NTAD): DOT Regions - National Highway Traffic Safety Administration (NHTSA) Regions 2023-Present [dataset]

United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization ...

2023-01-01 | National Transportation Atlas Database (NTAD) | ZIP

The DOT Regions - National Highway Traffic Safety Administration (NHTSA) Regions 2023-Present dataset is from the National Highway Traffic Safety Administration (NHTSA), and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’ (BTS's) National Transportation Atlas Database (NTAD). This dataset depicts NHTSA' ...

12/08/2025

Supporting Files

Title : National Transportation Atlas Database (NTAD): DOT Regions - National Highway Traffic Safety Administration (NHTSA) Regions 2023-Present [dataset] Corporate Creator(s) : United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization;United States. Department of Transportation. National Highway Traffic Safety Administration; Published Date : 2023-01-01 Series : National Transportation Atlas Database (NTAD) DOI : https://doi.org/10.21949/1403467 United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization (2023). National Transportation Atlas Database (NTAD): DOT Regions - National Highway Traffic Safety Administration (NHTSA) Regions 2023-Present [dataset]. https://doi.org/10.21949/1403467 United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization "National Transportation Atlas Database (NTAD): DOT Regions - National Highway Traffic Safety Administration (NHTSA) Regions 2023-Present [dataset]" (2023), https://doi.org/10.21949/1403467 United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization "National Transportation Atlas Database (NTAD): DOT Regions - National Highway Traffic Safety Administration (NHTSA) Regions 2023-Present [dataset]" , 2023, https://doi.org/10.21949/1403467 Export RIS Citation Information. TY - Dataset A2 - United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization A2 - United States. Department of Transportation. National Highway Traffic Safety Administration AB - The DOT Regions - National Highway Traffic Safety Administration (NHTSA) Regions 2023-Present dataset is from the National Highway Traffic Safety Administration (NHTSA), and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’ (BTS's) National Transportation Atlas Database (NTAD). This dataset depicts NHTSA's Regional Operations and Program Delivery Office regional boundaries. It identifies which states and territories are associated with each region. NHTSA's regions help States use data to identify their highway safety challenges, evaluate safety programs and activities, and provide technical assistance to State program managers to support the implementation of impactful behavioral highway safety programs. AB - National Transportation Library (NTL) Curation Note: This dataset has been curated to CoreTrustSeal's curation level "A. Active Preservation". To find out more information on CoreTrustSeal's curation levels, please consult their "Curation & Preservation Levels" CoreTrustSeal Discussion Paper" (https://doi.org/10.5281/zenodo.11476980). NTL staff last accessed this dataset at its repository URL on 2025-12-03. If, in the future, you have trouble accessing this dataset, please email NTLDataCurator@dot.gov describing your problem. NTL staff will do its best to assist you at that time. AN - dot:88106 DO - https://doi.org/10.21949/1403467 KW - Data KW - Data collection KW - Areas and regions KW - Regions KW - Highway safety LA - English PB - United States. Department of Transportation. Bureau of Transportation Statistics PY - 2023-01-01 T2 - National Transportation Atlas Database (NTAD) TI - National Transportation Atlas Database (NTAD): DOT Regions - National Highway Traffic Safety Administration (NHTSA) Regions 2023-Present [dataset] M3 - Dataset N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88106 ER -
Experimental Products and Equipment for Highway Construction and Maintenance: Annual Report [1994]

Williams, Gary G

1994-02-01 | PDF

This publication consists of a listing of experimental products and equipment that are being considered or evaluated by the Oklahoma Department of Transportation, other transportation departments, or other agencies. The listing is continuously updated as new information is received. A status of the evaluation is indicated for each item, showing the ...

12/08/2025

Title : Experimental Products and Equipment for Highway Construction and Maintenance: Annual Report [1994] Creator(s) : Williams, Gary G Corporate Creator(s) : Oklahoma. Department of Transportation. Research & Development Division Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 1994-02-01 Report Number : FHWA/OK 94(01) URL : https://rosap.ntl.bts.gov/view/dot/88105 Williams, Gary G (1994). Experimental Products and Equipment for Highway Construction and Maintenance: Annual Report [1994]. Williams, Gary G "Experimental Products and Equipment for Highway Construction and Maintenance: Annual Report [1994]" (1994) Williams, Gary G "Experimental Products and Equipment for Highway Construction and Maintenance: Annual Report [1994]" , 1994 Export RIS Citation Information. TY - Tech Report AU - Williams, Gary G A2 - Oklahoma. Department of Transportation. Research & Development Division A3 - United States. Department of Transportation. Federal Highway Administration AB - This publication consists of a listing of experimental products and equipment that are being considered or evaluated by the Oklahoma Department of Transportation, other transportation departments, or other agencies. The listing is continuously updated as new information is received. A status of the evaluation is indicated for each item, showing the progress or result of the evaluation. The following categories are covered in this year's report: Adhesives; Barriers, Fencing and Roadside Structures; Bituminous Materials; Culverts and Drainage Structures; Deicing Chemicals; Joint Sealers and Fillers; Miscellaneous; Mulch and Erosion Control; Patching Materials; Paving Fabrics; PCC Admixtures; PCC Curing Materials; PCC Finishing Products; Rust Passivators; Soil Sterilization and Weed Control; Soil Treatments; Structural Paints; Testing and Construction Equipment; Traffic Marking Materials; Waterproofing Membranes and Materials. AN - dot:88105 ET - JAN. 1993 - JAN. 1994 KW - Adhesives KW - Admixtures KW - Annual reports KW - Bituminous materials KW - Construction equipment KW - Culverts KW - Deicing chemicals KW - Equipment KW - Fabrics KW - Herbicides KW - Highway maintenance KW - Joint fillers KW - Joint sealers KW - Testing equipment LA - English PB - Oklahoma. Department of Transportation PY - 1994-02-01 SN - FHWA/OK 94(01) TI - Experimental Products and Equipment for Highway Construction and Maintenance: Annual Report [1994] M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88105 ER -
Experimental Products and Equipment for Highway Construction and Maintenance: Annual Report [1995]

Williams, Gary G

1995-02-01 | PDF

This publication consists of a listing of experimental products and equipment that are being considered or evaluated by the Oklahoma Department of Transportation, other transportation departments, or other agencies. The listing is continuously updated as new information is received. A status of the evaluation is indicated for each item, showing the ...

12/08/2025

Title : Experimental Products and Equipment for Highway Construction and Maintenance: Annual Report [1995] Creator(s) : Williams, Gary G Corporate Creator(s) : Oklahoma. Department of Transportation. Research & Development Division Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 1995-02-01 Report Number : FHWA/OK 95(01) URL : https://rosap.ntl.bts.gov/view/dot/88104 Williams, Gary G (1995). Experimental Products and Equipment for Highway Construction and Maintenance: Annual Report [1995]. Williams, Gary G "Experimental Products and Equipment for Highway Construction and Maintenance: Annual Report [1995]" (1995) Williams, Gary G "Experimental Products and Equipment for Highway Construction and Maintenance: Annual Report [1995]" , 1995 Export RIS Citation Information. TY - Tech Report AU - Williams, Gary G A2 - Oklahoma. Department of Transportation. Research & Development Division A3 - United States. Department of Transportation. Federal Highway Administration AB - This publication consists of a listing of experimental products and equipment that are being considered or evaluated by the Oklahoma Department of Transportation, other transportation departments, or other agencies. The listing is continuously updated as new information is received. A status of the evaluation is indicated for each item, showing the progress or result of the evaluation. The following categories are covered in this year's report: Adhesives; Barriers, Fencing and Roadside Structures; Bituminous Materials; Culverts and Drainage Structures; Deicing Chemicals; Joint Sealers and Fillers; Miscellaneous; Mulch and Erosion Control; Patching Materials; Paving Fabrics; PCC Admixtures; PCC Curing Materials; PCC Finishing Products; Rust Passivators; Soil Sterilization and Weed Control; Soil Treatments; Structural Paints; Testing and Construction Equipment; Traffic Marking Materials; Waterproofing Membranes and Materials. AN - dot:88104 ET - JAN. 1994 - JAN. 1995 KW - Adhesives KW - Admixtures KW - Annual reports KW - Bituminous materials KW - Construction equipment KW - Culverts KW - Deicing chemicals KW - Equipment KW - Fabrics KW - Herbicides KW - Highway maintenance KW - Joint fillers KW - Joint sealers KW - Testing equipment LA - English PB - Oklahoma. Department of Transportation PY - 1995-02-01 SN - FHWA/OK 95(01) TI - Experimental Products and Equipment for Highway Construction and Maintenance: Annual Report [1995] M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88104 ER -
Experimental Product and Evaluation Program: Annual Report [2006]

Williams, Gary G

2006-04-01 | PDF

This publication consists of a listing of experimental products that are being or have been evaluated by The Oklahoma Department of Transportation (ODOT), or other transportation agencies. This listing is continuously updated as new information is received. A status of the evaluation is given for each item, showing the progress or result of the eva ...

12/08/2025

Title : Experimental Product and Evaluation Program: Annual Report [2006] Creator(s) : Williams, Gary G Corporate Creator(s) : Oklahoma. Department of Transportation. Research & Development Division Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 2006-04-01 Report Number : FHWA/OK 06(01) URL : https://rosap.ntl.bts.gov/view/dot/88103 Williams, Gary G (2006). Experimental Product and Evaluation Program: Annual Report [2006]. Williams, Gary G "Experimental Product and Evaluation Program: Annual Report [2006]" (2006) Williams, Gary G "Experimental Product and Evaluation Program: Annual Report [2006]" , 2006 Export RIS Citation Information. TY - Tech Report AU - Williams, Gary G A2 - Oklahoma. Department of Transportation. Research & Development Division A3 - United States. Department of Transportation. Federal Highway Administration AB - This publication consists of a listing of experimental products that are being or have been evaluated by The Oklahoma Department of Transportation (ODOT), or other transportation agencies. This listing is continuously updated as new information is received. A status of the evaluation is given for each item, showing the progress or result of the evaluation. AN - dot:88103 KW - Products KW - Evaluation KW - Program management KW - Transportation system management KW - Annual reports LA - English PB - Oklahoma. Department of Transportation PY - 2006-04-01 SN - FHWA/OK 06(01) TI - Experimental Product and Evaluation Program: Annual Report [2006] M3 - Tech Report N1 - United States N1 - 2700 UR - https://rosap.ntl.bts.gov/view/dot/88103 ER -
Experimental Product and Evaluation Program: Annual Report [2003]

Williams, Gary G

2003-02-01 | PDF

This publication consists of a listing of experimental products that are being or have been evaluated by The Oklahoma Department of Transportation (ODOT), or other transportation agencies. This listing is continuously updated as new information is received. A status of the evaluation is given for each item, showing the progress or result of the eva ...

12/08/2025

Title : Experimental Product and Evaluation Program: Annual Report [2003] Creator(s) : Williams, Gary G Corporate Creator(s) : Oklahoma. Department of Transportation. Research & Development Division Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 2003-02-01 Report Number : FHW NOK 03(03) URL : https://rosap.ntl.bts.gov/view/dot/88102 Williams, Gary G (2003). Experimental Product and Evaluation Program: Annual Report [2003]. Williams, Gary G "Experimental Product and Evaluation Program: Annual Report [2003]" (2003) Williams, Gary G "Experimental Product and Evaluation Program: Annual Report [2003]" , 2003 Export RIS Citation Information. TY - Tech Report AU - Williams, Gary G A2 - Oklahoma. Department of Transportation. Research & Development Division A3 - United States. Department of Transportation. Federal Highway Administration AB - This publication consists of a listing of experimental products that are being or have been evaluated by The Oklahoma Department of Transportation (ODOT), or other transportation agencies. This listing is continuously updated as new information is received. A status of the evaluation is given for each item, showing the progress or result of the evaluation. AN - dot:88102 ET - Jan. - Dec. 2002 KW - Products KW - Evaluation KW - Program management KW - Transportation system management KW - Annual reports LA - English PB - Oklahoma. Department of Transportation PY - 2003-02-01 SN - FHW NOK 03(03) TI - Experimental Product and Evaluation Program: Annual Report [2003] M3 - Tech Report N1 - United States N1 - 2700 UR - https://rosap.ntl.bts.gov/view/dot/88102 ER -
Experimental Product and Evaluation Program: Annual Report [2005]

Williams, Gary G

2005-02-01 | PDF

This publication consists of a listing of experimental products that are being or have been evaluated by The Oklahoma Department of Transportation (ODOT), or other transportation agencies. This listing is continuously updated as new information is received. A status of the evaluation is given for each item, showing the progress or result of the eva ...

12/08/2025

Title : Experimental Product and Evaluation Program: Annual Report [2005] Creator(s) : Williams, Gary G Corporate Creator(s) : Oklahoma. Department of Transportation. Research & Development Division Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 2005-02-01 Report Number : FHWA/OK 05(01) URL : https://rosap.ntl.bts.gov/view/dot/88101 Williams, Gary G (2005). Experimental Product and Evaluation Program: Annual Report [2005]. Williams, Gary G "Experimental Product and Evaluation Program: Annual Report [2005]" (2005) Williams, Gary G "Experimental Product and Evaluation Program: Annual Report [2005]" , 2005 Export RIS Citation Information. TY - Tech Report AU - Williams, Gary G A2 - Oklahoma. Department of Transportation. Research & Development Division A3 - United States. Department of Transportation. Federal Highway Administration AB - This publication consists of a listing of experimental products that are being or have been evaluated by The Oklahoma Department of Transportation (ODOT), or other transportation agencies. This listing is continuously updated as new information is received. A status of the evaluation is given for each item, showing the progress or result of the evaluation. AN - dot:88101 ET - Annual Report, January - December, 2004 KW - Products KW - Evaluation KW - Program management KW - Transportation system management KW - Annual reports LA - English PB - Oklahoma. Department of Transportation PY - 2005-02-01 SN - FHWA/OK 05(01) TI - Experimental Product and Evaluation Program: Annual Report [2005] M3 - Tech Report N1 - United States N1 - 2700 UR - https://rosap.ntl.bts.gov/view/dot/88101 ER -
Experimental Product and Evaluation Program: Annual Report [1996]

Williams, Gary G

1996-02-01 | PDF

This publication consists of a listing of experimental products that are being or have been evaluated by The Oklahoma Department of Transportation (ODOT), or other transportation agencies. This listing is continuously updated as new information is received. A status of the evaluation is given for each item, showing the progress or result of the eva ...

12/08/2025

Title : Experimental Product and Evaluation Program: Annual Report [1996] Creator(s) : Williams, Gary G Corporate Creator(s) : Oklahoma. Department of Transportation. Research & Development Division Corporate Contributor(s) : United States. Department of Transportation. Federal Highway Administration Published Date : 1996-02-01 Report Number : FHWA/OK 96(03) URL : https://rosap.ntl.bts.gov/view/dot/88100 Williams, Gary G (1996). Experimental Product and Evaluation Program: Annual Report [1996]. Williams, Gary G "Experimental Product and Evaluation Program: Annual Report [1996]" (1996) Williams, Gary G "Experimental Product and Evaluation Program: Annual Report [1996]" , 1996 Export RIS Citation Information. TY - Tech Report AU - Williams, Gary G A2 - Oklahoma. Department of Transportation. Research & Development Division A3 - United States. Department of Transportation. Federal Highway Administration AB - This publication consists of a listing of experimental products that are being or have been evaluated by The Oklahoma Department of Transportation (ODOT), or other transportation agencies. This listing is continuously updated as new information is received. A status of the evaluation is given for each item, showing the progress or result of the evaluation. AN - dot:88100 ET - Jan.-Dec. 1995 KW - Products KW - Evaluation KW - Program management KW - Transportation system management KW - Annual reports LA - English PB - Oklahoma. Department of Transportation PY - 1996-02-01 SN - FHWA/OK 96(03) TI - Experimental Product and Evaluation Program: Annual Report [1996] M3 - Tech Report N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88100 ER -
National Transportation Atlas Database (NTAD): DOT Regions - Maritime Administration (MARAD) Gateways 2023-Present [dataset]

United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization ...

2023-01-01 | National Transportation Atlas Database (NTAD) | ZIP

The DOT Regions - Maritime Administration (MARAD) Gateways 2023-Present dataset is from the U.S. Maritime Administration (MARAD), and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’ (BTS's) National Transportation Atlas Database (NTAD). This dataset depicts the geographical boundaries of MARAD's nine Ga ...

12/08/2025

Supporting Files

Title : National Transportation Atlas Database (NTAD): DOT Regions - Maritime Administration (MARAD) Gateways 2023-Present [dataset] Corporate Creator(s) : United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization;United States. Department of Transportation. Maritime Administration; Published Date : 2023-01-01 Series : National Transportation Atlas Database (NTAD) DOI : https://doi.org/10.21949/1403471 United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization (2023). National Transportation Atlas Database (NTAD): DOT Regions - Maritime Administration (MARAD) Gateways 2023-Present [dataset]. https://doi.org/10.21949/1403471 United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization "National Transportation Atlas Database (NTAD): DOT Regions - Maritime Administration (MARAD) Gateways 2023-Present [dataset]" (2023), https://doi.org/10.21949/1403471 United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization "National Transportation Atlas Database (NTAD): DOT Regions - Maritime Administration (MARAD) Gateways 2023-Present [dataset]" , 2023, https://doi.org/10.21949/1403471 Export RIS Citation Information. TY - Dataset A2 - United States. Department of Transportation. Bureau of Transportation Statistics. Office of Spatial Analysis and Visualization A2 - United States. Department of Transportation. Maritime Administration AB - The DOT Regions - Maritime Administration (MARAD) Gateways 2023-Present dataset is from the U.S. Maritime Administration (MARAD), and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’ (BTS's) National Transportation Atlas Database (NTAD). This dataset depicts the geographical boundaries of MARAD's nine Gateway regions. MARAD offices located within each region provide critical marine transportation outreach activities at major U.S. gateway ports located on the West, East, and Gulf coasts, as well as on the inland river system and the Great Lakes. All gateway regions contain one office except the Inland Gateway Region which has two. See https://www.maritime.dot.gov/about-us/gateway-offices/gateway-offices for more information. AB - National Transportation Library (NTL) Curation Note: This dataset has been curated to CoreTrustSeal's curation level "A. Active Preservation". To find out more information on CoreTrustSeal's curation levels, please consult their "Curation & Preservation Levels" CoreTrustSeal Discussion Paper" (https://doi.org/10.5281/zenodo.11476980). NTL staff last accessed this dataset at its repository URL on 2025-12-03. If, in the future, you have trouble accessing this dataset, please email NTLDataCurator@dot.gov describing your problem. NTL staff will do its best to assist you at that time. AN - dot:88099 DO - https://doi.org/10.21949/1403471 KW - Data KW - Data collection KW - Areas and regions KW - Regions KW - Water transportation LA - English PB - United States. Department of Transportation. Bureau of Transportation Statistics PY - 2023-01-01 T2 - National Transportation Atlas Database (NTAD) TI - National Transportation Atlas Database (NTAD): DOT Regions - Maritime Administration (MARAD) Gateways 2023-Present [dataset] M3 - Dataset N1 - United States UR - https://rosap.ntl.bts.gov/view/dot/88099 ER -
Ramp Metering Algorithms and Approaches for Texas

Chaudhary, Nadeem A ;

Tian, Zongzhong

2004-12-01 | PDF

The primary objective of this project was to compare ramp metering algorithms and develop guidelines for improving ramp metering operations in Texas. As part of this research project, researchers collected data at several sites in Houston, Texas. Data analysis showed that many congested freeways are facing heavy ramp demand and require significant ...

12/08/2025

Title : Ramp Metering Algorithms and Approaches for Texas Creator(s) : Chaudhary, Nadeem A;Tian, Zongzhong;Messer, Carroll J.;Chu, Chi-Leung; Corporate Creator(s) : Texas A&M University. Texas Transportation Institute Corporate Contributor(s) : Texas Department of Transportation. Research and Technology Implementation Office;United States. Department of Transportation. Federal Highway Administration; Published Date : 2004-12-01 Report Number : FHWA/TX-05/0-4629-1 URL : https://rosap.ntl.bts.gov/view/dot/88098 Chaudhary, Nadeem A et al. (2004). Ramp Metering Algorithms and Approaches for Texas. Chaudhary, Nadeem A et al. "Ramp Metering Algorithms and Approaches for Texas" (2004) Chaudhary, Nadeem A et al. "Ramp Metering Algorithms and Approaches for Texas" , 2004 Export RIS Citation Information. TY - Tech Report AU - Chaudhary, Nadeem A AU - Tian, Zongzhong AU - Messer, Carroll J. AU - Chu, Chi-Leung A2 - Texas A&M University. Texas Transportation Institute A3 - Texas Department of Transportation. Research and Technology Implementation Office A3 - United States. Department of Transportation. Federal Highway Administration AB - The primary objective of this project was to compare ramp metering algorithms and develop guidelines for improving ramp metering operations in Texas. As part of this research project, researchers collected data at several sites in Houston, Texas. Data analysis showed that many congested freeways are facing heavy ramp demand and require significant changes in existing ramp metering operations if ramp metering continues to be used as part of freeway traffic management. Furthermore, researchers used computer simulation to compare the effectiveness of ALINEA with queue flush with the existing strategy of metering at the maximum rate with queue flushing. Researchers found that ALINEA does not provide any benefits when queue flushing is permitted. Under heavy demand conditions such as those in Houston, the current strategy to meter at the fastest rate remains the most beneficial. However, this strategy also provides limited benefits. Finally, researchers developed guidelines and recommendations for current and future ramp metering operations in Texas. This report documents the research results. AN - dot:88098 ET - September 2003 – August 2004 KW - Algorithms KW - Freeways KW - Guidelines KW - Highway traffic control KW - Ramp metering KW - Recommendations KW - Simulation KW - Traffic congestion LA - English PB - Texas. Department of Transportation PY - 2004-12-01 SN - FHWA/TX-05/0-4629-1 TI - Ramp Metering Algorithms and Approaches for Texas M3 - Tech Report N1 - United States N1 - 0-4629 UR - https://rosap.ntl.bts.gov/view/dot/88098 ER -
Quantitative Description of Informational Dimensions of Urban Freeways

Tsyganov, Alexei ;

Machemehl, Randy B

2004-09-01 | PDF

In an urban environment drivers typically have numerous information sources contributing to performance of driving tasks. An objective of this research is development of a practical tool to help traffic and safety professionals analyze driver information load and select countermeasures for information level corrections. The first task to accomplish ...

12/08/2025

Title : Quantitative Description of Informational Dimensions of Urban Freeways Creator(s) : Tsyganov, Alexei;Machemehl, Randy B;Vasquez, Lucio;Qatan, Ahmed;Mohan, Dinesh Natarajan; Corporate Creator(s) : University of Texas at Austin. Center for Transportation Research Corporate Contributor(s) : Texas Department of Transportation. Research and Technology Implementation Office;United States. Department of Transportation. Federal Highway Administration; Published Date : 2004-09-01 Report Number : FHWA/TX-05/0-4621-1 URL : https://rosap.ntl.bts.gov/view/dot/88097 Tsyganov, Alexei et al. (2004). Quantitative Description of Informational Dimensions of Urban Freeways. Tsyganov, Alexei et al. "Quantitative Description of Informational Dimensions of Urban Freeways" (2004) Tsyganov, Alexei et al. "Quantitative Description of Informational Dimensions of Urban Freeways" , 2004 Export RIS Citation Information. TY - Tech Report AU - Tsyganov, Alexei AU - Machemehl, Randy B AU - Vasquez, Lucio AU - Qatan, Ahmed AU - Mohan, Dinesh Natarajan A2 - University of Texas at Austin. Center for Transportation Research A3 - Texas Department of Transportation. Research and Technology Implementation Office A3 - United States. Department of Transportation. Federal Highway Administration AB - In an urban environment drivers typically have numerous information sources contributing to performance of driving tasks. An objective of this research is development of a practical tool to help traffic and safety professionals analyze driver information load and select countermeasures for information level corrections. The first task to accomplish the project objective was development of a methodology for quantitative description of informational dimensions of urban freeways, taking into account the complex impact of different information sources. Corresponding with a Positive Guidance concept, all sources of information were classified into three groups in relation to highway, traffic control, and traffic. The first group includes such roadway design features as horizontal and vertical alignments, number of traffic lanes, width of traffic lanes and shoulders, entrance and exit ramps. The traffic control group includes road signs, signals, and pavement markings. The third group, traffic, characterizes impacts of other vehicles on driver information load. In addition, the analysis considers that urban freeways are typically surrounded by numerous objects that are not related to traffic but can take driver attention or create inappropriate background for road signs and therefore interfere with perception of more vital information. These include commercial electronic billboards, commercial static billboards, buildings, and any other objects that consume driver attention but do not relate to traffic. With the purpose of determining typical combinations of the above-mentioned information sources, urban freeways in Texas were investigated. Based on joint analysis of the information load and principles of driver information processing, information quantification criteria were identified and the methodology for quantitative description of informational dimensions of urban freeways was developed. The structure of the utilized information load matrix isolates impacts of different information sources, and, therefore, with further investigations of their impact on driver behavior and reactions, will allow determination of each source contribution. AN - dot:88097 KW - Drivers KW - Freeways KW - Highway traffic control KW - Information processing KW - Roadside KW - Traffic KW - Urban areas LA - English PB - Texas. Department of Transportation PY - 2004-09-01 SN - FHWA/TX-05/0-4621-1 TI - Quantitative Description of Informational Dimensions of Urban Freeways M3 - Tech Report N1 - United States N1 - 0-4621 UR - https://rosap.ntl.bts.gov/view/dot/88097 ER -
Durations for Acquiring Roadway Right of Way and Assorted Expediting Strategies

Gibson, G Edward ;

O’Connor, James T.

2006-05-01 | PDF

The Right-of-Way (R/W) acquisition process involves the coordination of various entities including multiple Texas Department of Transportation (TxDOT) districts, divisions, local, state, federal agencies, and private companies. Delays in the acquisition process necessary for the successful delivery of R/W for construction have historically caused p ...

12/08/2025

Title : Durations for Acquiring Roadway Right of Way and Assorted Expediting Strategies Creator(s) : Gibson, G Edward;O’Connor, James T.;Chang, Rei-Lin G;Hedemann, Stephen M;Chong, Wai Kiong “Oswald”; Corporate Creator(s) : University of Texas at Austin. Center for Transportation Research Corporate Contributor(s) : Texas Department of Transportation. Research and Technology Implementation Office;United States. Department of Transportation. Federal Highway Administration; Published Date : 2006-05-01 Report Number : FHWA/TX-06/0-4617-1 URL : https://rosap.ntl.bts.gov/view/dot/88096 Gibson, G Edward et al. (2006). Durations for Acquiring Roadway Right of Way and Assorted Expediting Strategies. Gibson, G Edward et al. "Durations for Acquiring Roadway Right of Way and Assorted Expediting Strategies" (2006) Gibson, G Edward et al. "Durations for Acquiring Roadway Right of Way and Assorted Expediting Strategies" , 2006 Export RIS Citation Information. TY - Tech Report AU - Gibson, G Edward AU - O’Connor, James T. AU - Chang, Rei-Lin G AU - Hedemann, Stephen M AU - Chong, Wai Kiong “Oswald” A2 - University of Texas at Austin. Center for Transportation Research A3 - Texas Department of Transportation. Research and Technology Implementation Office A3 - United States. Department of Transportation. Federal Highway Administration AB - The Right-of-Way (R/W) acquisition process involves the coordination of various entities including multiple Texas Department of Transportation (TxDOT) districts, divisions, local, state, federal agencies, and private companies. Delays in the acquisition process necessary for the successful delivery of R/W for construction have historically caused project delays and cost overruns. In order to overcome the negative effects and to identify the problems and causes of delay, this study includes a comprehensive process review and evaluation, a development of duration prediction data, an identification of various process durations and key drivers of durations, along with recommendations for strategic management. The goal is to provide efficient delivery of transportation systems for the traveling public through increased knowledge and better management efforts of the R/W procurement process. AN - dot:88096 ET - Technical Report, 8-31-2003 to 8-31-2005 KW - Management KW - Procurement KW - Property acquisition KW - Right of way (Land) KW - Time duration LA - English PB - Texas. Department of Transportation PY - 2006-05-01 SN - FHWA/TX-06/0-4617-1 TI - Durations for Acquiring Roadway Right of Way and Assorted Expediting Strategies M3 - Tech Report N1 - United States N1 - 0-4617 UR - https://rosap.ntl.bts.gov/view/dot/88096 ER -
The Development of Non-proprietary Underground Stormwater Quality Structures

Landphair, Harlow C. ;

Li, Ming-Han

2007-06-01 | PDF

Permanent stormwater quality structures in developed urban areas require the use of smaller footprints and underground structures. This project was undertaken to see if an underground treatment structure composed of off-the-shelf precast concrete sections would have adequate performance and require minimum maintenance. The project consisted of a li ...

12/08/2025

Title : The Development of Non-proprietary Underground Stormwater Quality Structures Creator(s) : Landphair, Harlow C.;Li, Ming-Han;McFalls, Jett A.;Raut Desai, Aditya B.;Takamatsu, Masatsugu;Barrett, Michael E.;Charbeneau, Randall J.; Corporate Creator(s) : Texas A&M University. Texas Transportation Institute;University of Texas at Austin. Center for Transportation Research; Corporate Contributor(s) : Texas Department of Transportation. Research and Technology Implementation Office;United States. Department of Transportation. Federal Highway Administration; Published Date : 2007-06-01 Report Number : FHWA/TX-07/0-4611-1 URL : https://rosap.ntl.bts.gov/view/dot/88095 Landphair, Harlow C. et al. (2007). The Development of Non-proprietary Underground Stormwater Quality Structures. Landphair, Harlow C. et al. "The Development of Non-proprietary Underground Stormwater Quality Structures" (2007) Landphair, Harlow C. et al. "The Development of Non-proprietary Underground Stormwater Quality Structures" , 2007 Export RIS Citation Information. TY - Tech Report AU - Landphair, Harlow C. AU - Li, Ming-Han AU - McFalls, Jett A. AU - Raut Desai, Aditya B. AU - Takamatsu, Masatsugu AU - Barrett, Michael E. AU - Charbeneau, Randall J. A2 - Texas A&M University. Texas Transportation Institute A2 - University of Texas at Austin. Center for Transportation Research A3 - Texas Department of Transportation. Research and Technology Implementation Office A3 - United States. Department of Transportation. Federal Highway Administration AB - Permanent stormwater quality structures in developed urban areas require the use of smaller footprints and underground structures. This project was undertaken to see if an underground treatment structure composed of off-the-shelf precast concrete sections would have adequate performance and require minimum maintenance. The project consisted of a literature review of small footprint and underground stormwater treatment devices, their cost, performance, and maintenance considerations; a physical model study to test the principles to be employed and construction of a full-scale prototype for proving the concepts. The project clearly demonstrated that extended detention can be an effective tool in removing suspended solids from stormwater compared to other proprietary devices. It also shows that less frequent maintenance will be needed to maintain the overall level of performance. While the efficiency of the structure is around 75 percent removal, approximately 17 percent of the solids discharged can be attributed to resuspension. Several refinements show promise in significantly reducing the resuspension loading which could increase the overall efficiency to over 80 percent with maintenance intervals in excess of twelve months. For this reason, the project is being extended another year to further refine the performance and develop better design guidance. AN - dot:88095 ET - September 2005-August 2006 KW - Costs KW - Detention basins KW - Literature reviews KW - Maintenance KW - Performance KW - Prototypes KW - Runoff KW - Suspended sediments KW - Underground structures KW - Urban areas LA - English PB - Texas. Department of Transportation PY - 2007-06-01 SN - FHWA/TX-07/0-4611-1 TI - The Development of Non-proprietary Underground Stormwater Quality Structures M3 - Tech Report N1 - United States N1 - 0-4611 UR - https://rosap.ntl.bts.gov/view/dot/88095 ER -
Options for Outsourcing Outdoor Advertising Control in Texas

Luskin, David M. ;

Hutson, Nathan

2005-08-01 | PDF

To preserve the scenic value and attractiveness of state-maintained highways, Texas regulates the placement and dimensions of outdoor advertisements. The Texas Department of Transportation (TxDOT) administers and enforces these regulations except in certain cities that have been delegated to assume these responsibilities. The Department is interest ...

12/08/2025

Title : Options for Outsourcing Outdoor Advertising Control in Texas Creator(s) : Luskin, David M.;Hutson, Nathan; Corporate Creator(s) : University of Texas at Austin. Center for Transportation Research Corporate Contributor(s) : Texas Department of Transportation. Research and Technology Implementation Office Published Date : 2005-08-01 Report Number : FHWA/TX-05/0-4609-1 URL : https://rosap.ntl.bts.gov/view/dot/88094 Luskin, David M. and Hutson, Nathan (2005). Options for Outsourcing Outdoor Advertising Control in Texas. Luskin, David M. and Hutson, Nathan "Options for Outsourcing Outdoor Advertising Control in Texas" (2005) Luskin, David M. and Hutson, Nathan "Options for Outsourcing Outdoor Advertising Control in Texas" , 2005 Export RIS Citation Information. TY - Tech Report AU - Luskin, David M. AU - Hutson, Nathan A2 - University of Texas at Austin. Center for Transportation Research A3 - Texas Department of Transportation. Research and Technology Implementation Office AB - To preserve the scenic value and attractiveness of state-maintained highways, Texas regulates the placement and dimensions of outdoor advertisements. The Texas Department of Transportation (TxDOT) administers and enforces these regulations except in certain cities that have been delegated to assume these responsibilities. The Department is interested, however, in the options for outsourcing some of its responsibilities to the private sector. The researchers evaluated several of these options and concluded that outdoor advertising control is an activity suitable for outsourcing. The basic option, to outsource only the taking of sign inventory, would have an annual cost to TxDOT of at least $178,000 and possibly as much as $476,000. Outsourcing the responsibility for evaluating permit applications for new signs would add between $79,000 and $149,000 to this cost. Other options that were suggested for TxDOT’s consideration include measures to increase enforcement on rural roads. AN - dot:88094 ET - September 2003-August 2004 KW - Beautification KW - Contracting out KW - Law enforcement KW - Privatization KW - Regulations KW - Roadside advertising LA - English PB - Texas. Department of Transportation PY - 2005-08-01 SN - FHWA/TX-05/0-4609-1 TI - Options for Outsourcing Outdoor Advertising Control in Texas M3 - Tech Report N1 - United States N1 - 0-4609 UR - https://rosap.ntl.bts.gov/view/dot/88094 ER -

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