Today's transportation professionals, with limited resources available to them, are challenged to meet the mobility needs of an increasing population. At many highway junctions, congestion continues to worsen, and drivers, pedestrians, and bicyclists experience increasing delays and heightened exposure to risk. Today's traffic volumes and travel de
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The safety of intersections, interchanges, and other traffic facilities is most often assessed by tracking and analyzing police-reported motor vehicle crashes over time. Given the infrequent and random nature of crashes, this process is slow to reveal the need for remediation of either the roadway design or the flow-control strategy. This process i
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This TechBrief highlights the results of a research program that evaluated a 2nd generation ultra-high performance concrete (UHPC) pi-girder cross section developed for use in short- and medium-span highway bridge applications.
Corrosion of bridges, both of steel and reinforced concrete construction, constitutes a major maintenance problem for theUnited States. In the case of reinforced concrete bridges, recent attention has focused on corrosion-resistant reinforcements because of concerns that epoxy-coatings, which are presently employed for corrosion protection, may not
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United States. Federal Highway Administration. Office of Corporate Research, Technology, and Innovation Management
2009-10-01
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Focus (ISSN 1060-6637), which is published monthly by the U.S. Department of Transportation’s Federal Highway Administration (FHWA), covers the implementation of innovative technologies in all areas of infrastructure. Its primary mission is twofold: (1) to serve the providers of highway infrastructure with innovations and support to improve the qua
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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. Federal Highway Administration. Center for Accelerating Innovation
2009-10-01
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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.
On November 4, 2009, ITD’s Office of Highway Operations and Safety partnered with the FHWA Office of Safety to host a one-day peer exchange. This event focused on the update of Idaho’s Strategic Highway Safety Plan (SHSP), entitled “Toward Zero Deaths, Every Life Counts”; the State’s revised SHSP is targeted for completion in June 2010. The peer ex
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2009-10-01
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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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The purpose of this case study report is to examine the ways in which metropolitan planning organizations (MPOs) and State Departments of Transportation (DOTs) have responded to Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU) new environmental and consultation requirements in transportation planning
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This report provides an overview of practices related to developing and sustaining a Regional Traffic Signal OperationsProgram. The purpose for a Regional Traffic Signal Operations Program is to provide regional partners a formal framework tocollectively manage the signal system performance for efficiency and consistency. A key benefit of a regiona
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United States. Department of Transportation. Federal Highway Administration
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2009-09-28
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Under the Intermodal Surface Transportation Efficiency Act of 1991, historic preservation and highway communities have opportunities, such as the funding for Transportation Enhancement Activities, to reaffirm existing partnerships and establish new ones. The National Trust for Historic Preservation and the Federal Highway Administration prepared th
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2009-09-24
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FHWA Highway History Website Articles
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On October 3, 1893, General Roy Stone opened the Office of Road Inquiry (ORI) in the U.S. Department of Agriculture. He had a $10,000 budget and one employee, a stenographer. His modest agency grew into the Federal Highway Administration, while his work to convince America that it needed good roads led, after many a twist and turn, to the Eisenhowe
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2009-09-24
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FHWA Highway History Website Articles
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The Rambler offers a brief history of the development of Central Park as a place of refuge from the congestion and noise of 19th century New York City. The Rambler then details the early uses of and restrictions placed upon carriages, bicycles, and automobiles in Central Park, as well as the history of how those restrictions came into place.
Congestion pricing works by shifting some rush hour highway travel to other transportation modes or off-peak periods and by encouraging solo drivers to carpool or forgo making a trip altogether. By removing a fraction (even as small as 5 percent) of the vehicles from a congested roadway, pricing enables the traffic to flow much more efficiently, al
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This document identifies and provides design guidelines for bridge scour and stream instability countermeasures that have been implemented by various State departments of transportation (DOTs) in the United States. Countermeasure experience, selection, and design guidance are consolidated from other FHWA publications in this document to support a c
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This document identifies and provides design guidelines for bridge scour and stream instability countermeasures that have been implemented by various State departments of transportation (DOTs) in the United States. Countermeasure experience, selection, and design guidance are consolidated from other FHWA publications in this document to support a c
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This report highlights findings from the FHWA DTFH61-05-H-00019 project, which focused on the development of the multiaxial viscoelastoplastic continuum damage model for asphalt concrete in both compression and tension. Asphalt concrete pavement, one of the largest infrastructure components in the United States, is a complex system that involves mu
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