SafetyAnalyst provides a set of software tools for use by state and local highway agencies for highway safety management. SafetyAnalyst can be used by highway agencies to improve their programming of site-specific highway safety improvements. SafetyAnalyst incorporates state-of-the-art safety management approaches into computerized analytical tools
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Transportation Lessons From Central Europe - Are We Winning or Losing the War on Weeds? - Complete Streets - IntelliDrive! - From Hot to Warm - Scour, Flooding, and Inundation.
The High intensity Activated crossWalK (HAWK) is a pedestrian-activated beacon located on the roadside and on mast arms over major approaches to an intersection. It was created in Tucson, AZ, and at the time of this study, it was used at more than 60 locations throughout the city. The HAWK head consists of two red lenses over a single yellow lens.
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Traffic Monitoring: A Guidebook discusses different approaches to traffic monitoring and helping decisions to be made are based on the quality of the traffic data being collected and how well that traffic data reflects the actual events that are occurring. This guidebook should aid the user in developing a basic understanding of traffic data collec
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2010-07-01
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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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As part of a national initiative sponsored by the Federal Highway Administration under the Highways for LIFE program, EZ Asphalt Technology was awarded a grant to refine the Asphalt Binder Cracking Device (ABCD) test method and conduct an interlaboratory study. This report documents the results of two interlaboratory studies that examined the ABCD’
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A temporary job with the Bureau of Public Roads gave Larry Brown a firm foundation of skills in surveying and construction inspection. His memories of three summers in the Colorado Rockies and one in Yellowstone National Park still resonate fifty years later.
Hands-on training and the opportunity to contribute to the success of the project through new skills provided a firm foundation for a future career for one college student hired for summer work by the Bureau of Public Roads.
More than 25,000 people die each year in the United States in crashes caused by a vehicle drifting or veering out of its lane. Preventing such crashes through a more accurate and reliable lane–keeping system is the challenge taken up in "Intelligent Multi–Sensor Measurements to Enhance Vehicle Navigation and Safety Systems." This Exploratory Advanc
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United States. Federal Highway Administration. Office of Research, Development, and Technology
2010-07-01
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The city of Tucson, AZ, developed the High intensity Activated crossWalK (HAWK) pedestrian crossing beacon in the late 1990s to assist in pedestrian crossings, especially at major arterials with minor street intersections.(1) Previous research found driver yielding percentages above 95 percent for the HAWK treatment, even on major streets with mult
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United States. Federal Highway Administration. Office of Research, Development, and Technology
2010-07-01
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This TechBrief highlights the results of a study aimed at evaluating the inelastic tensile response of ultra-high performance concrete (UHPC) subjected to simultaneous structural and environmental loading.
Fiscally responsible, safe, life-cycle management of the Nation's bridges depends on reliably predicting their health over time. The goal of the Exploratory Advanced Research (EAR) Program project, "Development and Demonstration of Systems-Based Monitoring Approaches for Improved Infrastructure Management Under Uncertainty," is a next-generation, i
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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. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology
2010-07-01
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FHWA R&T Now
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Federal Highway Administration's FHWA R&T Now is a newsletter containing information and updates about research, technology, and development from the U.S. Department of Transportation, Federal Highway Administration. The newsletter is an electronic newsletter and is updated approximately every other month.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2010-07-01
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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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Regional land use‐transportation scenario planning emerged as a planning technique in U.S.metropolitan areas in the 1990s. Building on prior work by this research team, this study continuesto track the development and expansion of regional scenario planning, using 28 projectscompleted between 2003 and 2010. These projects demonstrate the continued
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United States. Federal Highway Administration. Road Weather Management Program
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2010-06-25
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Weather is the second largest cause of non recurring congestion, accounting for 25 percent of all non recurring delays. Drivers endure close to one billion lost hours due to delays caused by snow, rain, ice, wind, and fog on an annual basis. Weather is more than aggravating, it is dangerous. Weather plays a role in 25 percent of total crashes - app
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United States. Department of Transportation. Road Weather Management
2010-06-25
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PDF
Since Clarus was introduced in 2004, interest in and use of the system has increased substantially. By May 31, 2009, 33 state departments of transportation (DOT), three local DOTs, and three Canadian provinces were contributing their Road Weather Information System (RWIS) Environmental Sensor Station (ESS) data to the Clarus System. Many of these a
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This document summarizes outreach activities and public education initiatives used around the country by State Departments of Transportation (DOTs) and Metropolitan Planning Organizations (MPOs) to educate the public on transportation-related climate change issues. Best practices were gathered from a review of online documents, outreach materials,
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The purpose of this document is to present the findings of the national evaluation of the deployment of portable traffic monitoring devices (PTMDs) at a variety of locations in North Carolina conducted under the USDOT’s SafeTrip-21 Initiative. The North Carolina Department of Transportation (NCDOT) tested the use of PTMDs in work zones. During this
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