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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 1661 - 1680 of 36873 results
  • Bismarck Mandan 2021 Travel Demand Model Update
    Bismarck Mandan 2021 Travel Demand Model Update
    Motuba, Diomo ;
    Rahman, Baishali
    2024-04-01 | PDF
    The Bismarck Mandan Metropolitan Planning Organization (B-M MPO) Travel Demand Model (TDM) undergoes a comprehensive update every five years to incorporate the latest ground truths/data and advancements in transportation modeling techniques. The latest update incorporates data from the base year 2021 and partially from 2022, necessitated by the uni ...
  • Solutions To Mitigate DowelTieBar Propagated Cracking Phase 1
    Solutions To Mitigate Dowel/Tie-Bar Propagated Cracking – Phase 1
    Rao, Shreenath ;
    Abdualla, Hesham
    2024-04-01 | PDF
    This Phase 1 study was undertaken to evaluate cracking related to dowel bars and tie bars in concrete pavement. The results of the literature review and field studies suggest that under some conditions, restraint caused by dowel bars and tie bars in the concrete result in high early age stresses that contribute to cracking. Field evaluation of six ...
  • Crashes Related to Type and Location of Driveway Access Summary
    Crashes Related to Type and Location of Driveway Access [Summary]
    Bonyani, Gina ;
    Williams, Kristine M.
    2024-04-01 | PDF
    The objectives of this research were to provide a comprehensive study to examine safety issues associated with commercial driveways and to develop guidance for transportation agencies responsible for access management.
  • Distracted Driving in 2022 Traffic Safety Facts Research Note
    Distracted Driving in 2022 [Traffic Safety Facts - Research Note]
    United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
    2024-04-01 | PDF
    This Research Note summarizes distracted driving statistics for 2022. Driver distraction is a specific type of driver inattention that occurs when drivers divert attention from the driving task to focus on some other activity. Often discussions regarding distracted driving center around cellphone use and texting, but distracted driving also include ...
  • Crash Report Sampling System Analytical Users Manual 20162022
    Crash Report Sampling System Analytical User’s Manual, 2016-2022
    United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
    2024-04-01 | PDF
    This is the updated and revised Crash Report Sampling System Analytical User’s Manual for the period 2016 to 2022. This multi-year analytical user’s manual provides documentation on the evolution of coding practices of CRSS from 2016 to 2022. The manual will continue to grow each year and present the historical coding of CRSS from inception through ...
  • NJDOT Compensation Scan and Retention Study
    NJDOT Compensation Scan and Retention Study
    Gaines, Danena ;
    Kurlander, Victoria
    2024-04-01 | PDF
    With noticeable staff turnover in certain employment classifications, NJDOT engaged Cambridge Systematics (CS) to conduct the Compensation Scan and Retention Study. This scope of work is focused on researching and collecting information on compensation and retention of employees utilized by municipalities and county transportation agencies, private ...
  • Product Material Investigation and Evaluation of Jays Majic Mud for Use in KDOT Construction and Maintenance Applications Technical Summary
    Product Material Investigation and Evaluation of Jay’s Majic Mud for Use in KDOT Construction and Maintenance Applications [Technical Summary]
    McArtor, Erinn ;
    Broxterman, Brandon
    2024-04-01 | PDF
    KDOT currently uses a variety of thin bonded overlay systems to prolong the life of bridge decks in Kansas. These vary in both thickness and material type from thin ¼ in. bonded polymer overlays to common 1.5 in. silica fume concrete overlays. Jay’s Majic Mud was submitted as a potential new material product that could serve as a cost-effective alt ...
  • NonTraffic Surveillance Fatality and Injury Statistics in NonTraffic Crashes in 2021 Traffic Safety Facts Research Note
    Non-Traffic Surveillance: Fatality and Injury Statistics in Non-Traffic Crashes in 2021 [Traffic Safety Facts - Research Note]
    United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
    2024-04-01 | PDF
    Non-traffic motor vehicle crashes are a class of crashes that occur off the public trafficways. These are mostly single-vehicle crashes on private roads, two-vehicle crashes in parking facilities, or collisions with pedestrians in driveways. In addition, there are “non-traffic incidents” such as a vehicle falling on a person underneath the vehicle ...
  • Traffic Safety Evaluation of Pedestrians and Bicyclists at Rectangular Rapid Flashing Beacons and Pedestrian Hybrid Beacons in Minnesota
    Traffic Safety Evaluation of Pedestrians and Bicyclists at Rectangular Rapid Flashing Beacons and Pedestrian Hybrid Beacons in Minnesota
    Saari, Ian ;
    Wagner, Mark
    2024-04-01 | PDF
    To improve the visibility and safety of pedestrian and bicyclist crossings, traffic-safety professionals across Minnesota have installed the Rectangular Rapid Flashing Beacon (RRFB) and Pedestrian Hybrid Beacon (PHB) at numerous locations around the state. The purpose of this evaluation was to determine the safety benefits, if any, for pedestrians ...
  • Improving Roadway Debris Clearance for CHART Responders Research Summary
    Improving Roadway Debris Clearance for CHART Responders: Research Summary
    Yang, Xianfeng
    2024-04-01 | PDF
    This project intends to investigate the feasibility of deploying LaneBlade® on CHART vehicles under various environmental conditions such as low visibility conditions, etc., as well as the effectiveness of LaneBlade® in reducing debris clearance time in various scenarios where its deployment is feasible.
  • 2021 NonTraffic Surveillance System Coding and Validation Manual
    2021 Non-Traffic Surveillance System Coding and Validation Manual
    United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
    2024-04-01 | PDF
    The Non-Traffic Surveillance (NTS) system is a virtual data collection system of which one part is designed to gather data on fatalities and injuries that occur in nontraffic crashes, which can occur on private roads, driveways, and parking lots. The NTS program accepted potential crashes only from FARS analysts and from sampled Crash Report Sampli ...
  • Domestic Airline Fares Consumer Report Fourth Quarter 2023 Passenger and Fare Information
    Domestic Airline Fares Consumer Report: Fourth Quarter 2023 Passenger and Fare Information
    United States. Department of Transportation
    2024-04-01 | Domestic Airline Fares Consumer Report | 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 ...
  • 2020 NonTraffic Surveillance System Coding and Validation Manual
    2020 Non-Traffic Surveillance System Coding and Validation Manual
    United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
    2024-04-01 | PDF
    The Non-Traffic Surveillance (NTS) system is a virtual data collection system of which one part is designed to gather data on fatalities and injuries that occur in nontraffic crashes, which can occur on private roads, driveways, and parking lots. The NTS program accepted potential crashes only from FARS analysts and from sampled Crash Report Sampli ...
  • Study on Spectrum Options for GDOTs Connected Vehicle Infrastructure
    Study on Spectrum Options for GDOT’s Connected Vehicle Infrastructure
    Kim, Seungmo
    2024-04-01 | PDF
    Vehicle-to-everything (V2X) communications are expected to take a critical role in a variety of transportation safety applications in connected and autonomous vehicle environment. However, Dedicated Short-Range Communications (DSRC), one of the representative technologies implementing the V2X communications, is encountering challenges due to the re ...
  • A DataDriven Analysis of Transportation Infrastructure Equity in Utah
    A Data-Driven Analysis of Transportation Infrastructure Equity in Utah
    Burbidge, Shaunna K. ;
    Gee, Collin
    2024-04-01 | PDF
    Transportation investments vary across geographic areas. Currently, there is no mechanism in place to ensure that those investments are equitable. This project examined transportation investments and infrastructure quality (e.g., pavement conditions, presence of bike lanes, transit access, speed limits, etc.) in urban and rural Utah and correlated ...
  • An Overview of AI Assurance for Transportation
    An Overview of AI Assurance for Transportation
    United States. Department of Transportation. Highly Automated Systems Safety Center of Excellence
    2024-04-01 | PDF
    AI assurance refers to the techniques, activities, and processes used to evaluate and assure expected properties of AI components or AI-enabled systems throughout the lifecycle of these components or systems. The properties may relate to performance, safety, or security. Typical examples of AI assurance techniques are verification, validation, and ...
  • 07165 Logistics Sprawl Impacts on Ecommerce Travel Patterns Summary
    0-7165: Logistics Sprawl Impacts on E-commerce Travel Patterns [Summary]
    Bhat, Chandra R. ;
    Asmussen, Katherine
    2024-03-31 | PDF
    E-commerce services and facilities have the benefits of bringing new employment opportunities to communities and meeting consumer needs, but they also attract heavy traffic, which results in congestion and negative environmental and economic repercussions. This project offers a new lens for studying future e-commerce facility siting, considering cu ...
  • Development of an Immersive Training Platform for Roadway Construction Workers using Virtual Reality Technologies Policy Brief
    Development of an Immersive Training Platform for Roadway Construction Workers using Virtual Reality Technologies [Policy Brief]
    Wang, Zhenyu ;
    Lin, Pei-Sung
    2024-03-31 | PDF
    Workforce education is crucial to ensuring the safety and equality of the work environment. Immersive virtual reality (VR) training is revolutionizing workforce education, providing practical on-the-job training within a safe simulated environment. The project aimed to develop an immersive training platform using state-of-the-art VR technologies an ...
  • Targeted Warning Messages to Protect Moving and Stationary Maintenance Lane Closures
    Targeted Warning Messages to Protect Moving and Stationary Maintenance Lane Closures
    Soltani, Iman ;
    Gao, Dechen
    2024-03-31 | PDF
    This report details the development and evaluation of an innovative component in a traffic management system aimed at enhancing safety in work zones through targeted warning messages. The primary objective of the system is to improve the rates of driver compliance with work zone guidelines presented on signages and message boards, which our studies ...
  • Integrating Road Weather Technology Data in Highway Operations Research Summary
    Integrating Road Weather Technology Data in Highway Operations [Research Summary]
    Franz, Mark L.
    2024-03-29 | PDF
    The primary objectives of this study were to establish the state-of-practice in winter weather data applications and to design a platform that integrates all weather data into a single decision support tool. Expected outcomes include documentation of the state-of-practice and interface designs for a comprehensive winter operations decision support ...
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