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The US Transportation Collection consists of documents from across all transportation modes with specific focus on research reports from US DOT, state DOTs, and other transportation organizations. Bookmark this collection: https://rosap.ntl.bts.gov/collection_ust or https://doi.org/10.21949/1530857.

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Showing 2041 - 2060 of 35888 results
  • Domestic Airline Fares Consumer Report First Quarter 2006 Passenger and Fare Information
    Domestic Airline Fares Consumer Report: First Quarter 2006 Passenger and Fare Information
    United States. Department of Transportation
    2023-03-01 | PDF
    Each month the Department of Transportation releases an Air Travel Consumer Report that includes information about various service quality elements, including flight delays, mishandled baggage, over sales, and a variety of other types of consumer complaints. In response to an increasing number of inquiries from consumers about domestic airline pric ...
  • Express Lane Marker Color Human Factors Study on Concrete and OpenGraded Friction Course Summary
    Express Lane Marker Color Human Factors Study on Concrete and Open-Graded Friction Course [Summary]
    Byram, Karen ;
    Ali, Hesham
    2023-03-01 | PDF
    The objectives of this research project were to test the visibility and recognition of ELMs with different color patterns and to conduct a performance test of the ELMs on an OGFC surface. This project also developed recommendations and specifications for ELMs on OGFC surfaces.
  • Local Technical Assistance Program Support on ComputerBased FDOT Intersection Control Evaluation ICE Training Summary
    Local Technical Assistance Program Support on Computer-Based FDOT Intersection Control Evaluation (ICE) Training [Summary]
    El-Urfali, Alan ;
    Chen, Cong
    2023-03-01 | PDF
    This project provided technical support through the Florida Local Technical Assistance Program (LTAP) to develop the ICE CBT.
  • The 2021 National Survey of the Use of Booster Seats
    The 2021 National Survey of the Use of Booster Seats
    Boyle, Lacey L
    2023-03-01 | PDF
    This technical report presents results from the 2021 National Survey of the Use of Booster Seats (NSUBS), the only probability-based nationwide child restraint use survey in the United States that observes restraint use and interviews an adult occupant to collect age, gender, height, weight, race, ethnicity, and other data. NHTSA’s National Center ...
  • Statewide Capital Investment Strategy and Update
    Statewide Capital Investment Strategy and Update
    Patel, Alpesh ;
    Ukpah, Priscilla
    2023-03-01 | PDF
    This research is focused on updating the New Jersey Department of Transportation (NJDOT) Statewide Capital Investment Strategy (SCIS), which outlines NJDOT’s strategy to comprehensively invest in deficiencies and improvements to address statewide system goals. The update of the SCIS is a requirement under the Transportation Trust Fund Authority Act ...
  • Statewide Capital Investment Strategy and Update Technical Brief
    Statewide Capital Investment Strategy and Update [Technical Brief]
    Patel, Alpesh ;
    Ukpah, Priscilla
    2023-03-01 | PDF
    The goal of this research is to complete the following objectives: • Inventory relevant transportation investment plans for New Jersey, including capital programs for NJDOT, NJ TRANSIT, NJTA and SJTA. • Coordinate amongst all SCIS stakeholders, including key collaborators at NJDOT, NJTA, SJTA and NJ Transit. • Draft an SCIS document that meets all ...
  • Division of Planning Research OnCall ROC Task12 Survey of Risk Management Policies for Transportation Agencies
    Division of Planning Research On-Call (ROC) Task#12 - Survey of Risk Management Policies for Transportation Agencies
    Aros-Vera, Felipe
    2023-03-01 | PDF
    The project and risk management policies and strategies used by other DOTs in the country were evaluated. The purpose is to gain insight into how they measure and manage project development and delivery, and ultimately obtain ideas to improve ODOT’s own project management methods.
  • Putting Research Into Practice Mitigating Projects Missing Deadlines Implementation Summary
    Putting Research Into Practice: Mitigating Projects Missing Deadlines [Implementation Summary]
    Bossert, Justin ;
    Kester, Chris
    2023-03-01 | PDF
    All construction contracts specify a deadline, either a specific date or a length of time. Construction schedules are compressed to meet deadlines and avoiding delays is crucial to delivering a project on time.
  • MultiCity Study of an Engineering and Outreach Program to Increase Driver Yielding at Signalized and Unsignalized Crosswalks
    Multi-City Study of an Engineering and Outreach Program to Increase Driver Yielding at Signalized and Unsignalized Crosswalks
    Morris, N L ;
    Craig, C M
    2023-03-01 | PDF
    Pedestrian deaths are at a 30-year high nationally, accounting for 16% of total deaths in 2018 and far exceeding the previous decade of 12%, a trend mirrored in Minnesota. Previous research found an increase in local and citywide yielding at unsignalized crosswalks following an engineering and high-visibility enforcement program in Saint Paul, Minn ...
  • Ecological Design Rules for Roadway Lighting
    Ecological Design Rules for Roadway Lighting
    Sulliván, Mažeika Patricio ;
    Gray, Suzanne M
    2023-03-01 | PDF
    Artificial lighting at night alters natural patterns of light and dark in ecosystems and includes chronic or periodic illumination, unexpected changes in lighting, and direct glare that can have serious implications for ecological systems, such that it is increasingly referred to as “ecological light pollution”. ALAN occurs at an extent and magnitu ...
  • Annulus Void Fill Material for Rehabilitated Sliplined Culverts
    Annulus Void Fill Material for Rehabilitated Sliplined Culverts
    Patnaik, Anil ;
    Alzlfawi, Abdullah
    2023-03-01 | PDF
    Sliplining is a method used by transportation agencies to rehabilitate deteriorated culverts. In recent years, ODOT discovered a number of sliplined culverts that did not have their annulus void spaces completely filled. Such culverts experience distortion and settlement as well as reduced structural capacity. Field inspections of several sliplined ...
  • Evaluate Replacement of Current PostConstruction Groundcover with Pollinator Beneficial Groundcover
    Evaluate Replacement of Current Post-Construction Groundcover with Pollinator Beneficial Groundcover
    Burns, Ana ;
    Daniels, Cheryl
    2023-03-01 | PDF
    The Ohio Department of Transportation (ODOT) is constantly looking for ways to reduce maintenance costs following construction using native seed mixes while ensuring all Stormwater Pollution Prevention Plan (SWPPP) requirements are met. Davey Resource Group “DRG” was contracted by ODOT to develop seed mixes for various habitats and research appropr ...
  • Evaluate and Develop PostConstruction Groundcover That Meets Erosion and Sediment Goals and Is Beneficial to Pollinators Fact Sheet
    Evaluate and Develop Post-Construction Groundcover That Meets Erosion and Sediment Goals and Is Beneficial to Pollinators [Fact Sheet]
    Burns, Ana ;
    Daniels, Cheryl
    2023-03-01 | PDF
    The Ohio Department of Transportation (ODOT) is constantly looking for ways to reduce maintenance costs following construction using native seed mixes while ensuring all Stormwater Pollution Prevention Plan (SWPPP) requirements are met. Davey Resource Group “DRG” was contracted by ODOT to develop seed mixes for various habitats and research appropr ...
  • Optimizing the Performance of Item 404Low Volume Traffic Mixes
    Optimizing the Performance of Item 404-Low Volume Traffic Mixes
    Abbas, Ala R. ;
    Nazzal, Munir
    2023-03-01 | PDF
    Most local public agencies (LPAs) in Ohio follow the Ohio Department of Transportation (ODOT) specifications for designing asphalt mixtures placed on low‐volume roads, with the majority of these agencies using Type 1 surface mixes prepared using PG 64‐22 asphalt binders. As an alternative, some LPAs use a mix known as 404LVT, which is a fine-graded ...
  • District Highway Maintenance Research OnCall ROC 202309 Task 1 Evaluation of the Use Robotic Systems for Improving Crack Sealing Process
    District Highway Maintenance Research On-Call (ROC) 2023-09- Task 1: Evaluation of the Use Robotic Systems for Improving Crack Sealing Process
    Nazzal, Munir D ;
    Abbas, Ala R.
    2023-03-01 | PDF
    This report summarizes the results of a research task that was conducted to document the Ohio Department of Transportation (ODOT) current state-of-the-practice for crack sealing, identify best practices used or researched by state DOTs for crack sealing, and identify new methods and equipment for crack sealing that can improve the efficiency, respo ...
  • Optimizing the Performance of Item 404Low Volume Traffic Mixes Fact Sheet
    Optimizing the Performance of Item 404-Low Volume Traffic Mixes [Fact Sheet]
    Abbas, Ala R. ;
    Nazzal, Munir
    2023-03-01 | PDF
    This research project involved the following: • Online survey: An online survey was conducted in this study to document the current state-of-the-practice by Ohio LPAs regarding the use of 404LVT asphalt mix design specifications. • Laboratory study: A laboratory testing plan was designed and implemented in this study to examine the effects of vario ...
  • District Highway Maintenance Research OnCall ROC 202309 Task 1 Evaluation of New Methods for Improving Crack Sealing Process Fact Sheet
    District Highway Maintenance Research On-Call (ROC) 2023–09. Task 1, Evaluation of New Methods for Improving Crack Sealing Process [Fact Sheet]
    Nazzal, Munir D
    2023-03-01 | PDF
    Although crack sealing is one of the common tasks that maintenance crews at ODOT county garages frequently conduct, it can often be challenging as it is weather-dependent, slow-paced, and labor intensive. In addition, frequent breakdowns of equipment can cause significant downtimes. Crack sealing maintenance crews are also exposed to many hazards i ...
  • CostBenefit Analysis of FuelEfficient Speed Control Using Signal Phasing and Timing SPaT Data Evaluation for Future Connected Corridor Deployment
    Cost/Benefit Analysis of Fuel-Efficient Speed Control Using Signal Phasing and Timing (SPaT) Data: Evaluation for Future Connected Corridor Deployment
    Levin, Michael W. ;
    Sun, Zongxuan
    2023-03-01 | PDF
    The objective of this methodology is to refine the preliminary results from previous work (11% fuel savings for one vehicle, one intersection) to an entire corridor of SPaT signals, with different CV market penetration, and with driver awareness of fuel savings benefits. The research will proceed in three parts. First, several vehicles will be inst ...
  • Using Signal Phasing and Timing Data to Reduce Fuel Use Technical Summary
    Using Signal Phasing and Timing Data to Reduce Fuel Use [Technical Summary]
    Rowe, Daniel ;
    Levin, Michael W.
    2023-03-01 | PDF
    The goal of this project was to explore the fuel efficiencies of SPaT broadcasts interacting with CVs to control speed along connected corridors. The findings from this investigation could then be used to inform possible future SPaT deployments.
  • Toward a Florida Automated Connected Electric and Shared ACES Transportation System Roadmap Phase II
    Toward a Florida Automated, Connected, Electric, and Shared (ACES) Transportation System Roadmap: Phase II
    Lin, Pei-Sung ;
    Wang, Zhenyu
    2023-03-01 | PDF
    Automated, connected, electric, and shared (ACES) technologies are rapidly evolving and will continue to impact the development of vehicles, infrastructure, communities, commerce, and the economy. Based on the Florida ACES transportation system roadmap for Florida developed in Phase I, this project aimed to engage with private industries to leverag ...
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