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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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2021-08-01
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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. 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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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.
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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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. Federal Highway Administration. Center for Accelerating Innovation
2021-08-01
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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.
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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This TechBrief provides the most recent research product in scour formation and offers an interim support for foundation design of bridges vulnerable to scour caused by tsunamis. This research supplements the product from the Transportation Pooled Fund study TPF5-(307), Validation of Tsunami Design Guidelines for Coastal Bridges, which developed an
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United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure
2021-08-01
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This tech brief gives an overview of potential benefits and challenges of applying subsurface utility engineering (SUE) to highway construction projects, with a focus on SUE in Delaware.
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
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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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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2021-07-18
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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
2021-07-16
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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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This project aims to address the need for riders who use demand-responsive services, rural riders, and riders with disabilities to have equal access to the real-time trip planning technologies already available for fixed-route transit, as well as Transportation Network Companies. Fixed-route transit rider information has developed quickly in the la
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This document describes the Performance Measurement and Evaluation Support Plan for the New York City Department of Transportation New York City (NYC) Connected Vehicle Pilot Deployment (CVPD) Project. The report documents the performance metrics that will be used to assess the success of the NYC CVPD project, the targets for improvement in those p
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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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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2021-07-11
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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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