Waste plastic, though largely considered an environmental concern, has the potential to be a valuable resource. Some researchers have proposed mixing waste plastic with asphalt binder to make asphalt for the Nation’s roadways. Use of waste plastics to supplement traditional asphalt binders can reduce resource consumption and become an alternative t
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United States. Department of Transportation. Federal Highway Administration
2021-08-01
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Successes in Stewardship Newsletter
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PDF
Successes in Stewardship is a Federal Highway Administration (FHWA) bimonthly newsletter highlighting current best practices in stewardship and environmental review from around the country.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2021-08-01
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PDF
The Weekly Traffic Volume Report estimates the vehicle miles traveled (VMT) for interstate highways and how the total travel measured by VMT compares with travel that occurred in the same week of the previous year. The VMT is further split into passenger vehicle and truck components. The information gives new insights into the effect on traffic by
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2021-08-01
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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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This report assesses the effects of the Federal Highway Administration's (FHWA's) investment in the Innovative Intersection Design research program and related activities on the availability and quality of such research; awareness and adoption of innovative intersection designs in the United States; and impact of deployed innovative intersection de
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Through this project, researchers evaluated the safety effects of guardrails, utility poles, and side slopes using safety data from Indiana and Pennsylvania. Safety evaluations in this project focused on total, fatal-and-injury, and roadway-departure crash risk. Crash modification factors (CMFs) and benefit–cost (B/C) ratios were developed for the
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United States. Federal Highway Administration. Center for Accelerating Innovation
2021-08-01
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PDF
Innovator, published by the FHWA Center for Accelerating Innovation, advances implementation of innovative technologies and processes in the highway industry. Its audience is transportation professionals in highway agencies, trade and research groups, academia and the private sector, and the driving public.
Experiments on stationary sectional models of scaled replica of bridge stay cables were carried out in a 2-by 3-m wind tunnel. The cross-sectional shapes of the cable models were obtained from direct measurements of stay cables for bridges in service. The purpose of the experiments was to establish a relationship between the level of eccentricity a
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Concrete on concrete–unbonded (COC–U) overlays leverage the investment already made in the existing pavement structure while eliminating the need for extensive preservation activities. This case study summarizes the design, construction, and performance of a COC–U overlay of an existing jointed concrete pavement.
This evaluation assesses how the Federal Highway Administration's (FHWA's) investment in research on high friction surface treatments (HFSTs) and related activities impact the availability and quality of such research; awareness, knowledge, and attitudes toward HFSTs in the United States; adoption of HFSTs as a safety measure; and safety performanc
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United States. Federal Highway Administration. Office of Bridge Technology
2021-08-01
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PDF
This Technical Brief provides an overview of “Advancing Steel and Concrete Bridge Technology to Improve Infrastructure Performance Program.” The objective was to research design details of Electrically Isolated Tendon (EIT) technology for post-tensioning systems in concrete bridges to accommodate epoxy-coated mild steel reinforcement and permit pos
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United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements
2021-08-01
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PDF
This Technical Brief shares summary information related to practices and suggestions implemented by States and local agencies based on the literature and on-site visits in six States. The full report on the site visits is available as a reference should additional information be needed for any of the topics discussed.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2021-07-30
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PDF
The Weekly 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 Adminis
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2021-07-25
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PDF
The Weekly Traffic Volume Report estimates the vehicle miles traveled (VMT) for interstate highways and how the total travel measured by VMT compares with travel that occurred in the same week of the previous year. The VMT is further split into passenger vehicle and truck components. The information gives new insights into the effect on traffic by
...
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2021-07-23
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PDF
The Weekly 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 Adminis
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