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Showing 61 - 80 of 16419 results
  • 2026 HSIS Excellence in Highway Safety Data Award Research Paper Submission Cover Page
    2026 HSIS Excellence in Highway Safety Data Award: Research Paper Submission Cover Page
    United States. Department of Transportation. Federal Highway Administration
    2026-01-01 | PDF
    This form is the cover page for submissions to the 2026 Excellence in Highway Safety Data Award.
  • Excellence in Highway Safety Data Awards 2026 Postcard
    Excellence in Highway Safety Data Awards [2026 Postcard]
    United States. Department of Transportation. Federal Highway Administration
    2026-01-01 | PDF
    This postcard is to announce the Excellence in Highway Safety Data Awards Student Contest 2026. The intended audience is all undergraduate, graduate, and community college students with a passion for impactful research and data analysis.
  • HF Human Factors postcard
    HF Human Factors [postcard]
    United States. Department of Transportation. Federal Highway Administration
    2026-01-01 | PDF
    With the Human Factors Laboratory, located at the Federal Highway Administration's (FHWA's) Turner-Fairbank Highway Research Center in McLean, VA, the Human Factors Team aims to improve transportation safety by strengthening the understanding of user needs and making transportation-related recommendations for roadway design, signage, and advanced t ...
  • Saxton Transportation Operations Laboratory WebBased and OpenSource Tools for Connected and Automated Vehicle CAV Research and Deployment fact sheet
    Saxton Transportation Operations Laboratory Web-Based and Open-Source Tools for Connected and Automated Vehicle (CAV) Research and Deployment [fact sheet]
    United States. Federal Highway Administration. Office of Safety and Operations Research and Development
    2026-01-01 | PDF
    The U.S. Department of Transportation (USDOT) provides infrastructure-focused tools that offer advantages to transportation systems and their users. These tools help optimize traffic flow and management, improve access for road users, collect valuable data, and support academic institutions in transportation technology education. These open-source ...
  • A WebBased and OpenSource Tool to Simplify Traveler Information Message Development for Connected Infrastructure fact sheet
    A Web-Based and Open-Source Tool to Simplify Traveler Information Message Development for Connected Infrastructure [fact sheet]
    United States. Federal Highway Administration. Office of Safety and Operations Research and Development
    2026-01-01 | PDF
    The U.S. Department of Transportation’s (USDOT) open-source traveler information message (TIM) Creator tool simplifies the creation of SAE International® J2735™ TIM messages that support connected and automated vehicle (CAV) applications. TIMs are used to communicate roadway and traveler information similar to the information from road signs or dyn ...
  • A WebBased and OpenSource Tool to Simplify MAP and RGA Message Development for Connected Infrastructure fact sheet
    A Web-Based and Open-Source Tool to Simplify MAP and RGA Message Development for Connected Infrastructure [fact sheet]
    United States. Federal Highway Administration. Office of Safety and Operations Research and Development
    2026-01-01 | PDF
    The U.S. Department of Transportation’s (USDOT) open-source MAP/road geometry attributes (RGA) Message Creator tool simplifies the development of SAE International® J2735™ MAP and J2945/A™ RGA messages to support connected and automated infrastructure deployment. MAP messages(2) define intersections and segment geometry, whereas RGA messages descri ...
  • Behavioral Analysis and Impact Assessment of Automated Driving Systems Interaction With Traffic Lights Brochure
    Behavioral Analysis and Impact Assessment of Automated Driving Systems' Interaction With Traffic Lights [Brochure]
    Li, Zheng ;
    Li, Yang
    2026-01-01 | PDF
    Autonomous vehicle (AV) deployment is accelerating, but AV behavior remains poorly understood. Infrastructure planners and operators lack confidence in forecasting how AVs will interact with existing infrastructure (e.g., traffic lights). Current studies focus mainly on car-following and lane-changing maneuvers on freeways and highways, with less s ...
  • Modeling Autonomous Driving SystemsEquipped Vehicle Interactions With Traffic Signs Brochure
    Modeling Autonomous Driving Systems-Equipped Vehicle Interactions With Traffic Signs [Brochure]
    Wang, Xuan ;
    Li, Qianwen
    2026-01-01 | PDF
    Prior studies report conflicting impacts of autonomous vehicles (AVs). A study by Li et al. suggests AVs may engage in riskier behaviors compared with human-driven vehicles. A study by Morando et al. highlights AV potential to enhance safety. A better understanding of AV behaviors is crucial for safety. This goal calls for an investigation using re ...
  • LongTerm Pavement Performance Program Updates on Accomplishments and Benefits research note
    Long-Term Pavement Performance Program Updates on Accomplishments and Benefits [research note]
    United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology
    2026-01-01 | PDF
    Data collected by the Long-Term Pavement Performance (LTPP) program has been used to develop the world’s most comprehensive source of in-service pavement performance information.(1) When established, the mission of the LTPP program was to collect and store performance data from a large number of in-service highways, analyze these data to describe a ...
  • Learning From RealWorld Trajectories A Hybrid Genetic Algorithm and Reinforcement Learning Approach for Vulnerable Road User Model Calibration brochure
    Learning From Real-World Trajectories: A Hybrid Genetic Algorithm and Reinforcement Learning Approach for Vulnerable Road User Model Calibration [brochure]
    United States. Department of Transportation. Federal Highway Administration
    2026-01-01 | PDF
    Microscopic simulation models require accurate calibration to reflect real-world dynamics. Vulnerable road user (VRU) model calibration is challenging due to: Complex interactions and behaviors, Mode-specific interactions, Diversity in infrastructure and the existence of shared spaces. Existing calibration methods, relying solely on numeric loss fu ...
  • A DataDriven Comparison of CarFollowing Behaviors of Autonomous and HumanDriven Vehicles and Their Traffic Flow Impacts Under Naturalistic Traffic Conditions brochure
    A Data-Driven Comparison of Car-Following Behaviors of Autonomous and Human-Driven Vehicles and Their Traffic Flow Impacts Under Naturalistic Traffic Conditions [brochure]
    United States. Department of Transportation. Federal Highway Administration
    2026-01-01 | PDF
    Microscopic simulation is a valuable tool for traffic system analysis and design. Car-following models’ characteristics and parametric distributions dictate safety and mobility performance of traffic streams.
  • Accelerate Your V2X Deployment with USDOTs OpenSource Connected Vehicle Equipment Loan Program Postcard
    Accelerate Your V2X Deployment with USDOT's Open-Source Connected Vehicle Equipment Loan Program [Postcard]
    United States. Department of Transportation. Federal Highway Administration
    2026-01-01 | PDF
    The Connected Vehicle Equipment Loan Program gives agencies, researchers, and developers no-cost access to connected vehicle hardware. Use real devices—roadside units, onboard units, antennas, test tools, and more—to test vehicle-to-everything (V2X) applications, validate interoperability, and accelerate deployment timelines.
  • Geometric Design Laboratory Bridging Safety Design and Innovation for Safer Roads flyer
    Geometric Design Laboratory Bridging Safety, Design, and Innovation for Safer Roads [flyer]
    United States. Department of Transportation. Federal Highway Administration
    2026-01-01 | PDF
    The Federal Highway Administration (FHWA) Geometric Design Laboratory (GDL) is dedicated to supporting transportation safety, design, and innovation through advanced tools, technical reviews, and collaboration with research and implementation teams. GDL's main mission is the advancement of the safety practice. Such advancement can be in the forms o ...
  • V2X Interoperability Help Desk Postcard
    V2X Interoperability Help Desk [Postcard]
    United States. Department of Transportation. Federal Highway Administration
    2026-01-01 | PDF
    The help desk is your direct line to technical experts supporting your V2X deployment. Whether you’re selecting equipment, creating MAP messages, integrating signal phase and timing, or troubleshooting data flow, the help desk is here to help ensure interoperability and compliance with standards.
  • Mechanisms Driving Altitude and Latitude dependent Air Quality Variations from HighAltitude NOx Emissions
    Mechanisms Driving Altitude- and Latitude- dependent Air Quality Variations from High-Altitude NOx Emissions
    Oh, Lucas J. ;
    Eastham, Sebastian D.
    2026-01-01 | PDF
    The environmental impact of nitrogen oxide (NOx) emissions varies with emission altitude and latitude. NOx emissions from subsonic aviation (9-12 km) contribute to net global ozone formation, whereas those from supersonic aircraft (above 14 km) lead to net global ozone depletion. However, the effects of NOx emission altitude on surface air quality ...
  • Special Issue Weekly Motor Fuel Report Gasoline Product Supplied for Fiscal Year Week No 13 Data Complete Through 12262025
    Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 13, Data Complete Through 12/26/2025
    United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
    2025-12-31 | 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 ...
  • Special Issue Weekly Motor Fuel Report Gasoline Product Supplied for Fiscal Year Week No 12 Data Complete Through 12192025
    Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 12, Data Complete Through 12/19/2025
    United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
    2025-12-29 | 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 ...
  • Special Issue Weekly Motor Fuel Report Gasoline Product Supplied for Fiscal Year Week No 11 Data Complete Through 12122025
    Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 11, Data Complete Through 12/12/2025
    United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
    2025-12-17 | 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 ...
  • Special Issue Weekly Motor Fuel Report Gasoline Product Supplied for Fiscal Year Week No 10 Data Complete Through 1252025
    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 ...
  • Special Issue Weekly Motor Fuel Report Gasoline Product Supplied for Fiscal Year Week No 9 Data Complete Through 11282025
    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 ...
61 - 80 / 16419