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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 1701 - 1720 of 35865 results
  • Correlation of Rut Depths Measured by the Profilers of LTRC and DOTD PMS Tech Summary
    Correlation of Rut Depths Measured by the Profilers of LTRC and DOTD PMS [Tech Summary]
    Chen, Qiming
    2023-08-01 | PDF
    The objective of this research was to develop a correlation of rut depths measured with LTRC’s profiler with a 5-point laser system and DOTD PMS’s profiler with a scanning laser system. A standard operating procedure (SOP) of pavement rutting data collection, compilation, and delivery by LTRC was developed so that DOTD pavement engineers can use LT ...
  • Evaluating Pavements Designed for Longer Life Brief
    Evaluating Pavements Designed for Longer Life [Brief]
    Kutay, M. Emin
    2023-08-01 | PDF
    A 2015 state law directed the Michigan Department of Transportation (MDOT) to explore innovations that can help pavements last longer and require less maintenance. To accomplish the task, the agency designed and constructed four projects using top-of-the-line materials and building methods. The completed roads are predicted to have service lives th ...
  • Incorporating the Site Variability and Laboratory InSitu Testing Variability of Soil Properties in Geotechnical Engineering Design Tech Summary
    Incorporating the Site Variability and Laboratory/ In-Situ Testing Variability of Soil Properties in Geotechnical Engineering Design [Tech Summary]
    Abu-Farsakh, Murad ;
    Zhang, Zhongjie “Doc”
    2023-08-01 | PDF
    The main objective of this research is to: Evaluate the operator-induced and equipment-induced variations on design soil properties; Evaluate the site spatial variations of design soil properties; Evaluate the best spatial interpolation method to generate synthetic CPT profiles and soil boring data from the existing CPT and soil boring data of the ...
  • Valuation Methodology and Framework for Estimation of RightofWay Value
    Valuation Methodology and Framework for Estimation of Right-of-Way Value
    Kraus, Edgar ;
    Holik, William
    2023-08-01 | PDF
    TxDOT manages over one million acres of right-of-way, which is used by a variety of third parties to install facilities such as utilities, saltwater pipelines, and small cell nodes. Third parties include common carriers, who install facilities for public use, and private parties, who install facilities for private use. Common carriers access the ri ...
  • Determining Sample Measures of Distracted Driving Distracted Pedestrian Activities and Impacts of Such Behavior on Traffic Operations at Signalized Intersections Brief
    Determining Sample Measures of Distracted Driving, Distracted Pedestrian Activities and Impacts of Such Behavior on Traffic Operations at Signalized Intersections [Brief]
    Ballard, Tricia (Labud) ;
    Abou-Senna, Hatem
    2023-08-01 | PDF
    How much time is lost due to traveler distraction? Florida law prohibits texting while a vehicle is moving, but how much travel delay is caused by drivers looking at their phone while stopped at a traffic light or a pedestrian responding to a text message while traversing a crosswalk?
  • Improving Safety Service Patrol Performance
    Improving Safety Service Patrol Performance
    Cetin, Mecit ;
    Yang, Hong
    2023-08-01 | PDF
    Safety Service Patrols (SSPs) provide motorists with assistance free of charge on most freeways and some key primary roads in Virginia. This research project is focused on developing a tool to help the Virginia Department of Transportation (VDOT) optimize SSP routes and schedules (hereafter called SSP-OPT). The computational tool, SSP-OPT, takes re ...
  • Study of Operational and Safety Impacts of Disabled and Abandoned Vehicles on FDOT Roadways Summary
    Study of Operational and Safety Impacts of Disabled and Abandoned Vehicles on FDOT Roadways [Summary]
    Gordin, Eric ;
    Al-Deek, Haitham
    2023-08-01 | PDF
    A primary goal of the Florida Department of Transportation (FDOT) is to keep vehicles moving safely. But what are the safety impacts of vehicles that are not moving – particularly disabled and abandoned vehicles (DAVs)? From 2015-2020, DAVs were involved in 1,250 crashes in Florida, resulting in 53 fatalities, 976 injuries, $17.3 million in propert ...
  • Evaluation of FDOT Corrosion Prevention and Control Programs Summary
    Evaluation of FDOT Corrosion Prevention and Control Programs [Summary]
    Duncan, Matthew ;
    Fadden, Matthew
    2023-08-01 | PDF
    This research reviewed commonly used materials and systems to evaluate and compare multiple practices and systems used across the State in terms of durability, cost, and long-term performance. Additionally, this project summarized current FDOT design requirements and specifications regarding corrosion control for reinforced concrete bridge structur ...
  • The Effects of Highway Improvement Projects on Nearby Business Activity
    The Effects of Highway Improvement Projects on Nearby Business Activity
    Wexler, Noah ;
    Fan, Yingling
    2023-08-01 | PDF
    This report analyzes how state-funded highway improvement projects in the seven county Twin Cities metropolitan area affected businesses in adjacent Census Tracts. We first identify demographic factors associated with the temporal and financial prioritization of some projects over others, finding that the per capita income of a Census Tract is asso ...
  • Achieving Efficiencies Within ODOT With the Event Streaming Platform
    Achieving Efficiencies Within ODOT With the Event Streaming Platform
    Crow, Mallory ;
    Avery, Paul A
    2023-08-01 | PDF
    The goal of this research is to achieve efficiencies within ODOT for the Event Streaming Platform (ESP). This research queried potential Use Case data from several of the divisions and two of the districts at ODOT with the goal of identifying current tasks that may benefit from automation, tasks that are redundant or use multiple systems to draw a ...
  • Ohio Department of Transportation District Highway Maintenance Research OnCall Task 07 Radar Emplacement Prediction Tool Exploration Recommendations
    Ohio Department of Transportation District Highway Maintenance Research On-Call Task 07: Radar Emplacement Prediction Tool Exploration & Recommendations
    Ramaswami, Adithya G ;
    McCrink, Matthew H
    2023-08-01 | PDF
    Emerging autonomous aircraft require unique infrastructure to provide vital information to ensure they remain well-clear of other flying objects. While there are many systems designed to provide such functionality, termed detect and avoid (DAA), ground-based radars have emerged as one of the most promising technical solutions to this challenging pr ...
  • Achieving Efficiencies Within ODOT With the Event Streaming Platform Fact Sheet
    Achieving Efficiencies Within ODOT With the Event Streaming Platform [Fact Sheet]
    Crow, Mallory ;
    Avery, Paul A
    2023-08-01 | PDF
    The goal of this project is to identify efficiencies across ODOT for the ESP. Future application needs and data automation processes must be defined based on current ODOT personnel activity workflows, repetitive tasks, and activities and integration of cross-process and internal organization collaboration. Use cases and statements of work (SOW) mus ...
  • District Highway Maintenance Research OnCall ROC Task 07 Radar Emplacement Prediction Tool Exploration and Recommendations Fact Sheet
    District Highway Maintenance Research On-Call (ROC) - Task 07: Radar Emplacement Prediction Tool Exploration and Recommendations [Fact Sheet]
    Ramaswami, Adithya G ;
    McCrink, Matthew H
    2023-08-01 | PDF
    Emerging autonomous aircraft require unique infrastructure to provide vital information to ensure they remain well-clear of other flying objects. While there are many systems designed to provide such functionality, termed detect and avoid (DAA), ground-based radars have emerged as one of the most promising technical solutions to this challenging pr ...
  • District Highway Maintenance Research OnCall ROC Task3 ODOT Maintenance Workflow
    District Highway Maintenance Research On-Call (ROC) –Task#3 ODOT Maintenance Workflow
    Schroeder, Bastian ;
    Rowe, Glenn
    2023-08-01 | PDF
    ODOT funded this study to investigate maintenance scheduling practices in the US and search for potential software systems that are capable of alleviating the challenges of maintenance scheduling. The project conducted a national scan and extensive agency outreach to evaluate existing approaches. It further completed interviews with ODOT staff and ...
  • District Highway Maintenance Research OnCall ROC Task3 ODOT Maintenance Workflow Fact Sheet
    District Highway Maintenance Research On-Call (ROC) –Task#3 ODOT Maintenance Workflow [Fact Sheet]
    Schroeder, Bastian ;
    Rowe, Glenn
    2023-08-01 | PDF
    This project investigated Ohio DOT’s (ODOT) existing workflow and needs for scheduling maintenance activities. ODOT conducts biweekly inspections and records roadway defects using ArcGIS Field Maps. Sources of maintenance work items also include periodic maintenance work, other collector apps for different asset types (i.e., culverts) and phone cal ...
  • Innovative Methods to Strengthen Internal KYTC Communications
    Innovative Methods to Strengthen Internal KYTC Communications
    Marks, P Gayle ;
    Jasper, Jeff
    2023-08-01 | PDF
    Communication is the linchpin of every organization. Poor communication leads to inefficiencies, frustration among staff, and employee disaffection and disengagement. Although some state transportation agencies have adopted comprehensive strategic plans for internal communications, many have taken a more piecemeal approach, with some Offices and un ...
  • Evaluating the Use of a NearMiss Reporting Program to Enhance Employee Safety Performance
    Evaluating the Use of a Near-Miss Reporting Program to Enhance Employee Safety Performance
    Dadi, Gabriel B. ;
    Taherpour, Farshid
    2023-08-01 | PDF
    Using safety incidents and crashes to improve safety performance is an outdated and reactive practice in safety and health programs. One component of a modern approach to safety is a near-miss reporting program. This type of program tracks close calls or near misses that do not result in an incident or crash, but which often can be an early indicat ...
  • Deep Learning Software for Traffic State Prediction
    Deep Learning Software for Traffic State Prediction
    Bhattacharya, Sambit ;
    Park, Hyoshin
    2023-08-01 | PDF
    As urban populations continue to grow, traffic congestion has become an increasingly pressing issue for drivers, leading to a greater demand for advanced navigation aids and traffic management solutions. Real-time traffic information, advanced traffic signal control strategies, and the integration of various data sources can play a crucial role in ...
  • North Carolina Center of Excellence for Mobility and Congestion Summary
    North Carolina Center of Excellence for Mobility and Congestion [Summary]
    University of North Carolina (System). Institute for Transportation Research and Education
    2023-08-01 | PDF
    As urban populations continue to grow, traffic congestion has become an increasingly pressing issue for drivers, leading to a greater demand for advanced navigation aids and traffic management solutions. Real-time traffic information, advanced traffic signal control strategies, and the integration of various data sources can play a crucial role in ...
  • Literature Review Synthesizing the Current and Potential ATMA Applications
    Literature Review Synthesizing the Current and Potential ATMA Applications
    Miller, Erika ;
    Young, Chandler
    2023-08-01 | PDF
    There are numerous applications of the Autonomous Maintenance Technology (AMT) that have yet to be fully utilized or widely shared. There are many slow-moving operations conducted by Departments of Transportation (DOTs) with an attenuator (e.g., work zone set up, operations, take down, repairs, mowing, sweeping), platooning of two or more vehicles ...
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