The overall objective of this research phase is to develop a possible stochastic methodology for quantifying the probability of bridge failure against heavy truck collisions which can result in fires and that can impact the safety of bridges. In 2021, the National Bridge Inventory (NBI) had over 618,456 bridges and culverts registered in its U.S. b
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United States. Department of Transportation. Federal Highway Administration. Office of Operations
2024-09-01
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Urban Congestion Report (UCR)
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PDF
The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year.
This TechBrief summarizes the system dynamics aspects from the report, which was prepared for the Flooded Pavement Assessment project funded through FHWA Project No. DTFH61-13-C-00022. The report, in general, addresses the load-carrying capacity of pavements affected by flooding to provide decisionmakers with quantitative tools to rationally assess
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This report documents the results and technical performance analysis of the Pilot 1 test for the FHWA Virtual Open Innovation Collaborative Environment for Safety (VOICES) project. Pilot 1 furthered the development of tools and software used for distributed testing and added new test partners to the distributed testing community. This test expanded
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United States. Department of Transportation. Federal Highway Administration
2024-09-01
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PDF
The systemic approach to safety prioritizes reducing systemic risk to produce a reduction in fatal and serious injury crashes. Given that high speed contributes to the likelihood of a severe crash outcome, a systemic program to reduce traffic speed is expected to reduce severe crash frequency. In this vein, the City of Pittsburgh’s Department of Mo
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This summary report explains corrosion control methods, including using flexible fillers such as petroleum-based microcrystalline wax to replace cementitious grout—an impregnation method using a silicon polymer-based corrosion inhibitor that impregnates the grout to form a barrier to moisture and oxygen upon a pressure-driven injection process—and
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The use of stainless steel as concrete reinforcement has continued to gain momentum in highway construction. The main reason behind stainless steel’s popularity is its inherent corrosion resistance. However, stress corrosion cracking (SCC), normally associated with austenitic stainless steel at a high temperature (>100 ℃ (212 ℉)), can occur at a ra
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Standardizing e-Construction: A Pilot Project in Lincoln, Nebraska - Celebrating Innovationand Collaboration: Debut of the TPF Excellence Awards - From Farm to Market: The Data Challenges of Rural Roads - Accelerating U.S. Innovation: Bringing Global Innovations to U.S. Highways - Reentry Workforce Training Pilot Programs for Incarcerated Individua
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To ensure public safety and to protect the capital investment in bridges over water, underwater members should be inspected to the extent necessary to determine their structural condition with certainty. Underwater inspections should also include the streambed. In shallow water, underwater inspections may be accomplished visually or tactilely from
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United States. Department of Transportation. Federal Highway Administration
2024-09-01
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Safety Compass Newsletter
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PDF
The Federal Highway Administration’s (FHWA) Safety Compass newsletter aims to increase highway safety awareness and to provide resources to the highway safety community to help save lives. The newsletter is published three times a year, and includes articles on safety-focused offerings from FHWA, other DOT modes; our State, Local, and Tribal partne
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United States. Department of Transportation. Federal Highway Administration
2024-09-01
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PDF
Welcome to the Transportation Pooled Fund (TPF) Quarterly Update. This update shares the latest information on the TPF Program including highlights, resources, announcements, open solicitations, and active studies. The TPF program creates an opportunity for partners to pool their funds, subject matter expertise, and resources to conduct high-priori
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United States. Department of Transportation. Federal Highway Administration
2024-09-01
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PDF
This fact sheet highlights an overview of the Annual Performance Expenditure Report (APER), that is required of each State Department of Transportation (DOT). It is to be submitted to the local Federal Highway Administration (FHWA) division office, per 23 Code of Federal Regulations (CFR). An APER assists both the State DOTs and FHWA division offic
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United States. Department of Transportation. Federal Highway Administration
2024-08-28
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PDF
This fact sheet highlights how Traffic Management Systems (TMSs) manage the use of variable speed limits during adverse weather conditions. Changing weather and roadway conditions may influence which operational strategies a TMS may use and what information may be shared with motorists along a particular roadway.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2024-08-28
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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
2024-08-28
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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
2024-08-21
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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
2024-08-14
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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
2024-08-08
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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
...
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2024-08-07
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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
2024-08-07
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PDF
The FHWA 2023 Urban Congestion Trends report details trends and the current state of congestion and reliability on the National Highway System (NHS) in 52 of the largest metropolitan areas in the United States. This report also includes examples of how agencies are using the National Performance Management Research Data Set (NPMRDS) for performance
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