United States. Department of Transportation. Federal Highway Administration
2025-10-01
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The intent of a move over law is to protect first responders as they respond to an incident. When first responders are positioned near or in active travel lanes, they and their vehicles may be put in harm’s way due to the close proximity of other vehicles. All 50 States have some form of a move over law, whereby approaching users are required to sl
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United States. Department of Transportation. Federal Highway Administration (2025). Move Over Law for Traffic Incident Management Using Cooperative Driving Automation (CDA). https://doi.org/10.21949/n9b8-4w56
United States. Department of Transportation. Federal Highway Administration "Move Over Law for Traffic Incident Management Using Cooperative Driving Automation (CDA)" (2025), https://doi.org/10.21949/n9b8-4w56
United States. Department of Transportation. Federal Highway Administration "Move Over Law for Traffic Incident Management Using Cooperative Driving Automation (CDA)" , 2025, https://doi.org/10.21949/n9b8-4w56
United States. Department of Transportation. Federal Highway Administration
2025-10-01
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Connectivity helps automated vehicles safely merge and then harmonize across a traffic stream. The Federal Highway Administration's (FHWA's) integrated highway prototype used up to five SAE International® Level 2+ vehicles on a closed track to perform platooning, cooperative merge, and speed harmonization maneuvers. The research team then analyzed
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United States. Department of Transportation. Federal Highway Administration (2025). Integrated Highway Prototype Using Cooperative Driving Automation (CDA). https://doi.org/10.21949/e3en-0a71
United States. Department of Transportation. Federal Highway Administration "Integrated Highway Prototype Using Cooperative Driving Automation (CDA)" (2025), https://doi.org/10.21949/e3en-0a71
United States. Department of Transportation. Federal Highway Administration "Integrated Highway Prototype Using Cooperative Driving Automation (CDA)" , 2025, https://doi.org/10.21949/e3en-0a71
United States. Department of Transportation. Federal Highway Administration
2025-10-01
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In 2023, pedestrian and bicyclist fatalities together made up about 21 percent of all traffic fatalities in the United States. Both drivers and automated vehicles often have blind spots or limited sight lines where they cannot see vulnerable road users. These visual limitations potentially contribute to those incidents. Cooperative perception can h
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United States. Department of Transportation. Federal Highway Administration (2025). Perception Sharing for Cooperative Driving Automation (CDA). https://doi.org/10.21949/vgyc-ny64
United States. Department of Transportation. Federal Highway Administration "Perception Sharing for Cooperative Driving Automation (CDA)" (2025), https://doi.org/10.21949/vgyc-ny64
United States. Department of Transportation. Federal Highway Administration "Perception Sharing for Cooperative Driving Automation (CDA)" , 2025, https://doi.org/10.21949/vgyc-ny64
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology
2025-10-01
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During the 2023 and 2025 Transportation Research Board (TRB) Annual Meetings, the Federal Highway Administration (FHWA) held two workshops that focused on using data to increase the longevity of the Nation’s pavement and bridge infrastructure. The primary objectives of the workshops were to highlight transportation data sources and how the data are
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United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology (2025). Extending the Life of Highway Infrastructure: Summary of 2023 and 2025 TRB Data Workshops [summary report]. https://doi.org/10.21949/dbwn-9q65
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology "Extending the Life of Highway Infrastructure: Summary of 2023 and 2025 TRB Data Workshops [summary report]" (2025), https://doi.org/10.21949/dbwn-9q65
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology "Extending the Life of Highway Infrastructure: Summary of 2023 and 2025 TRB Data Workshops [summary report]" , 2025, https://doi.org/10.21949/dbwn-9q65
United States. Department of Transportation. Federal Highway Administration
2025-10-01
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Automated vehicles communicating with smart traffic signals can travel through signalized intersections more safely and efficiently. The functionality developed in this project demonstrates CDA’s potential to benefit automated vehicles by supporting them as they navigate signalized intersections with fixed-time settings. As shown in figure 1, vehic
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United States. Department of Transportation. Federal Highway Administration (2025). Optimizing Vehicle Trajectories at Fixed-Time Traffic Signal Intersections Using Cooperative Driving Automation (CDA). https://doi.org/10.21949/70tf-3c51
United States. Department of Transportation. Federal Highway Administration "Optimizing Vehicle Trajectories at Fixed-Time Traffic Signal Intersections Using Cooperative Driving Automation (CDA)" (2025), https://doi.org/10.21949/70tf-3c51
United States. Department of Transportation. Federal Highway Administration "Optimizing Vehicle Trajectories at Fixed-Time Traffic Signal Intersections Using Cooperative Driving Automation (CDA)" , 2025, https://doi.org/10.21949/70tf-3c51
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2025-10-01
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Special Issue - Weekly Motor Fuel Report
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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
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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. 52, Data Complete Through 9/26/2025.
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. 52, Data Complete Through 9/26/2025" (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. 52, Data Complete Through 9/26/2025" , 2025
Intelligent Transportation Systems (ITS) offer a powerful, cost-effective approach to improving roadway safety and efficiency, especially when traditional infrastructure expansion is either impractical or fails to meet longer-term needs. Their ability to address complex challenges are driving substantial growth in the ITS field as transportation sy
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Grahn, Rick et al. (2025). Career Opportunities in Intelligent Transportation Systems (ITS).
Grahn, Rick et al. "Career Opportunities in Intelligent Transportation Systems (ITS)" (2025)
Grahn, Rick et al. "Career Opportunities in Intelligent Transportation Systems (ITS)" , 2025
United States. Department of Transportation. Federal Highway Administration. Office of Operations
2025-10-01
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National Travel Time Dashboard: Interstate Highways
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The Monthly Urban Congestion Report (UCR) provides a state-level overview of traffic congestion and reliability trends on Interstate highways. Published every month, the report compares data from the most recent month with the same month in the previous year. It uses travel time data from the Federal Highway Administration's National Performance Ma
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United States. Department of Transportation. Federal Highway Administration. Office of Operations (2025). National Travel Time Dashboard: Interstate Highways, October 2025.
United States. Department of Transportation. Federal Highway Administration. Office of Operations "National Travel Time Dashboard: Interstate Highways, October 2025" (2025)
United States. Department of Transportation. Federal Highway Administration. Office of Operations "National Travel Time Dashboard: Interstate Highways, October 2025" , 2025
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2025-09-26
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Traffic Volume Trends
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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
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2025). Traffic Volume Trends: August 2025.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information "Traffic Volume Trends: August 2025" (2025)
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information "Traffic Volume Trends: August 2025" , 2025
The Buffalo NY ITS4US Deployment Project seeks to improve mobility to, from and within the Buffalo Niagara Medical Campus by deploying new and advanced technologies with a focus on addressing existing mobility and accessibility challenges. The technologies to be deployed are self-driving shuttles, a trip planning app that is customized for accessib
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Okunieff, Polly et al. (2025). System Design Document (SDD) — Buffalo, NY ITS4US Deployment Project.
Okunieff, Polly et al. "System Design Document (SDD) — Buffalo, NY ITS4US Deployment Project" (2025)
Okunieff, Polly et al. "System Design Document (SDD) — Buffalo, NY ITS4US Deployment Project" , 2025
The Buffalo NY ITS4US Deployment Project seeks to improve mobility to, from and within the Buffalo Niagara Medical Campus by deploying new and advanced technologies with a focus on addressing existing mobility and accessibility challenges. Examples of the technologies to be deployed are electric and self-driving shuttles, a trip planning app that i
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Bradley, Mark et al. (2025). Phase 2 Revised Performance Measurement and Evaluation Support Plan (PMESP) – Buffalo NY ITS4US Deployment Project.
Bradley, Mark et al. "Phase 2 Revised Performance Measurement and Evaluation Support Plan (PMESP) – Buffalo NY ITS4US Deployment Project" (2025)
Bradley, Mark et al. "Phase 2 Revised Performance Measurement and Evaluation Support Plan (PMESP) – Buffalo NY ITS4US Deployment Project" , 2025
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2025-09-24
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Special Issue - Weekly Motor Fuel Report
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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
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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. 51, Data Complete Through 9/19/2025.
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. 51, Data Complete Through 9/19/2025" (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. 51, Data Complete Through 9/19/2025" , 2025
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2025-09-17
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Special Issue - Weekly Motor Fuel Report
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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
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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. 50, Data Complete Through 9/12/2025.
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. 50, Data Complete Through 9/12/2025" (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. 50, Data Complete Through 9/12/2025" , 2025
United States. Department of Transportation. Federal Highway Administration
2025-09-15
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Advanced Digital Construction Management Systems (ADCMS) are technologies and processes that include systems for infrastructure planning and coordination, design, construction, maintenance, modernization and management, and asset management. Through its ADCMS Program, the Federal Highway Administration (FHWA) offers grants to help States adopt adva
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United States. Department of Transportation. Federal Highway Administration (2025). Strategic Workforce Development: Focus on Innovation: Advanced Digital Construction Management Systems [Brochure].
United States. Department of Transportation. Federal Highway Administration "Strategic Workforce Development: Focus on Innovation: Advanced Digital Construction Management Systems [Brochure]" (2025)
United States. Department of Transportation. Federal Highway Administration "Strategic Workforce Development: Focus on Innovation: Advanced Digital Construction Management Systems [Brochure]" , 2025
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2025-09-10
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Special Issue - Weekly Motor Fuel Report
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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
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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. 49, Data Complete Through 9/5/2025.
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. 49, Data Complete Through 9/5/2025" (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. 49, Data Complete Through 9/5/2025" , 2025
United States. Department of Transportation. Federal Highway Administration
2025-09-10
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Advanced Digital Construction Management Systems (ADCMS) are an important part of the Federal Highway Administration's (FHWA) ongoing, strategic effort to share innovative project delivery practices with State and other transportation agencies. ADCMS are technologies and processes that include systems for infrastructure planning and coordination, d
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United States. Department of Transportation. Federal Highway Administration (2025). Strategic Workforce Development: Case Study: Focus on Innovation: Advanced Digital Construction Management Systems.
United States. Department of Transportation. Federal Highway Administration "Strategic Workforce Development: Case Study: Focus on Innovation: Advanced Digital Construction Management Systems" (2025)
United States. Department of Transportation. Federal Highway Administration "Strategic Workforce Development: Case Study: Focus on Innovation: Advanced Digital Construction Management Systems" , 2025
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2025-09-04
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Special Issue - Weekly Motor Fuel Report
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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
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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. 48, Data Complete Through 8/29/2025.
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. 48, Data Complete Through 8/29/2025" (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. 48, Data Complete Through 8/29/2025" , 2025
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2025-09-03
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Traffic Volume Trends
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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
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2025). Traffic Volume Trends: July 2025.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information "Traffic Volume Trends: July 2025" (2025)
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information "Traffic Volume Trends: July 2025" , 2025
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2025-09-01
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FHWA has constructed a national vehicle miles traveled (VMT) forecasting model where future VMT growth rates can be estimated for three major economic scenarios - normal, pessimistic, and optimistic growth. The normal growth scenario represents the most Likely economic outlook reflects IHS' assessment of most probable future trends in U.S. populati
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2025). 2025 FHWA Forecasts of Vehicle Miles Traveled (VMT).
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information "2025 FHWA Forecasts of Vehicle Miles Traveled (VMT)" (2025)
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information "2025 FHWA Forecasts of Vehicle Miles Traveled (VMT)" , 2025
Portland limestone cement (PLC), also known as Type IL, is a blended hydraulic cement that contains 5–15 percent (by weight) limestone (either blended fines or interground with clinker) to reduce the clinker content.(1) ASTM International (ASTM) C595(2) and American Association of State Highway and Transportation Officials (AASHTO) M 240(3) provide
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Hosseini, Payam and Cooper, Michelle A. and Muzenski, Scott "Portland Limestone Cement Variability [technote]" (2025), https://doi.org/10.21949/he5v-1k56
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