United States. Department of Transportation. Federal Highway Administration. Office of Operations
2024-03-01
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National Travel Time Dashboard: Interstate Highways
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PDF
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 Research, Development, and Technology
2024-03-01
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PDF
This TechBrief provides a summary/information about the following: Artificial pore solution (APS), The use of a highly alkaline solution, such as APS, has precedence in the construction industry, Selection of repeatable, responsible, and relevant QA/QC tests for concrete materials, The considerations necessary for scaling APS from small numbers of
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United States. Department of Transportation. Federal Highway Administration. Office of Safety
2024-03-01
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Pedestrian & Bike Forum Newsletter
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PDF
The Pedestrian and Bike Forum newsletter provides information to FHWA stakeholders on reducing the number of pedestrian- and bicycle-related highway fatalities and serious injuries. Topics include updates on FHWA programs, spotlights on State and local noteworthy practices, initiatives with partner organizations, and upcoming events. It is publishe
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United States. Department of Transportation. Federal Highway Administration
2024-03-01
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PDF
The Federal Highway Administration’s (FHWA) Turner-Fairbank Highway Research Center (TFHRC) is the premier center for infrastructure, operations, and safety highway research that advances innovations to benefit the traveling public. The facility houses 15 state-of-the-art laboratories that address some of the Nation’s most pressing transportation i
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United States. Department of Transportation. Federal Highway Administration
2024-03-01
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FHWA's Fostering Multimodal Connectivity Newsletter
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The Federal Highway Administration's (FHWA's) Fostering Multimodal Connectivity Newsletter is intended to provide transportation professionals with real-world examples of ways that multimodal transportation investments promote economic revitalization, provide access to jobs, and achieve safer communities through support of accelerated project deliv
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A previous study involving a wind tunnel investigation of a stay cable found that rotating the cable along its longitudinal axis changed its wind-induced response, revealing that the slight eccentricity of the cross-sectional shape was influencing the response. The study speculates that surface deformation could have caused nonsymmetrical separatio
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2024-03-01
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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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The purpose of this Guide is to help Long-Term Pavement Performance (LTPP) data users determine traffic parameters suitable for their analyses and identify LTPP tables containing such parameters. This Guide describes available tools and specific procedures for extracting these parameters from the LTPP database and provides practical examples with s
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United States. Department of Transportation. Federal Highway Administration
2024-03-01
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PDF
This document contains the editorial guidelines for the Second Annual Student Writing Competition, held by Public Roads. It's a contest that encourages high school, undergraduate, and graduate students interested in or actively pursuing STEM majors to demonstrate their knowledge by writing an article that relates to the transportation industry.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2024-02-28
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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. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements
2024-02-26
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ZIP
The Profile Viewer and Analyzer (ProVAL) is a software that was initially developed to provide a means to view and analyze pavement profiles efficiently and robustly, as part of the Federal Highway Administration (FHWA) smoothness initiative. ProVAL imports, displays, and analyzes the characteristics of pavement profiles from many different sources
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2024-02-22
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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. Federal Highway Administration. Office of Bridges and Structures
2024-02-21
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ZIP
The FHWA Hydraulic Toolbox Program is a stand-alone suite of calculators that performs routine hydrologic and hydraulic analysis and design computations. Specific calculators address: Rational Method hydrology, channels, channel linings, weirs, curb and gutter sections, storm drain inlets, detention basins, bridge scour, riprap countermeasures, sed
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2024-02-14
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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
2024-02-09
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PDF
On a monthly basis, each State is required to report to the Federal Highway Administration (FHWA), the amount of gallons taxed by that state. This data is analyzed and compiled by FHWA staff. The data on the amount of on-highway fuel use for each State is then used to attribute federal revenue to each State. Yearly, the FHWA, Office of Policy, prov
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2024-02-09
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PDF
On a monthly basis, each State is required to report to the Federal Highway Administration (FHWA), the amount of gallons taxed by that state. This data is analyzed and compiled by FHWA staff. The data on the amount of on-highway fuel use for each State is then used to attribute federal revenue to each State. Yearly, the FHWA, Office of Policy, prov
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2024-02-07
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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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This study explored the impact of connected vehicle alert messages on drivers’ responses to emergency vehicles. The participants drove a simulated vehicle either with or without SAE Level 2 automation (SAE International 2021). During the drive, an emergency vehicle approached the participant from behind. The participants’ vehicle connectivity was m
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Inverted pavement (IP) consists of a lower modulus layer, typically an unbound crushed stone base, sandwiched between a cement-stabilized layer at the bottom and a thin asphalt concrete (AC) surfacing. This type of pavement is extensively used in South Africa, where it has proven to be an effective, low-cost solution for high-trafficked roads. The
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