United States. Department of Transportation. Federal Highway Administration. Office of Safety
2011-10-01
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Traffic safety is a success story. In 2009, traffic fatalities reached their lowest level in 55 years due to the energy, enthusiasm, and hard work of thousands of safety stakeholders. Help continue the momentum by signing up for one of five new web-based courses related to the Highway Safety Improvement Program (HSIP). These courses include HSIP Ov
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2011-10-01
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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 primary focus of this research was to determine the effects of design and construction features, such as overlaythickness and mix type, presence of milling, and type of restoration, on pavement response and performance and toestablish their importance in the prediction of future performances of rehabilitated pavements. Long-Term PavementPerform
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United States. Department of Transportation. Federal Highway Administration. Office of Safety
2011-09-30
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The Idaho Transportation Department (ITD) contracted with a consultant to conduct a comprehensive review of existing Idaho State Highway 8 (Idaho 8) corridor conditions. The review identified deficiencies related to traffic operations, roadway geometry and cross section, access control, and safety with an overall purpose to identify and prioritize
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On September 26-27, 2011, the FHWA's Office of Planning sponsored a 1.5 day peer exchange focusing on the use of GIS to support transportation related climate change decisions. This report provides overviews of the presentations given at the peer exchange and the associated question and answers. It concludes with a summary of the roundtable discuss
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On September 14-15, 2011, the FHWA's Office of Planning and its Office of Safety sponsored a 1.5-day peer exchange to promote the use of GIS and mapping for highway safety applications. This report offers overviews of the presentations given at the peer exchange and the conversations that followed. It concludes with a summary of the discussions res
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2009 crash data from the State of Michigan was combined with weather data from four Clarus weather stations in the Upper Peninsula of Michigan. Crashes were monitored within a 50 mile radius and associated with weather conditions at the Clarus station. From this data, a series of regression models were then created based on critical tipping points
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Intelligent transportation systems (ITS) provide a proven set of strategies for addressing the challenges of assuring safety and reducing congestion, while accommodating the growth in transit ridership and freight movement. This report presents information on the performance of deployed IT'S under each of these goal areas, as well as information on
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Weather is a primary item of interest to travelers, but generally scattered numerous sources and in varying formats, making it difficult to assemble prior travel. Within this project, a website was developed to display Clarus ESS data, along with other information streams such as DOT Intelligent Transportation System (ITS) field elements, CCTV, pla
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Through connected vehicle research, the U.S. DOT Intelligent Transportation Systems Joint Program Office (ITS JPO)is leading an effort to assess the potential for systematic and dynamic data capture from vehicles, travelers and thetransportation system infrastructure to enhance current operational practices and transform future surfacetransportatio
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What Does It Take to Change How We Do Business? - Modeling Transportation Systems: Past, Present, and Future - Fighting Congestion with Smarter Highways - The Atlanta Beltline: A Green Future - Going on a Road Diet - Wherefore Art Thou Aggregate Resources for Highways?
The dynamic modulus, |E*|, is a fundamental property that defines the stiffness characteristics of hot mix asphalt (HMA) mixtures as a function of loading rate and temperature. In spite of the demonstrated significance of |E*|, it is not included in the current Long-Term Pavement Performance (LTPP) materials tables because the database structure wa
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The U.S. Environmental Protection Agency (EPA)’s Motor Vehicle Emission Simulator (MOVES) has replaced MOBILE6 as a regulatory emissions model for use in State Implementation Plan (SIP) development and transportation conformity analyses in all States, except California. With several methodological improvements, MOVES appears to be more data intensi
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United States. Department of Transportation. Federal Highway Administration. Office of Operations
2011-09-01
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The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year.
Learning in Progress, NHI's quarterly newsletter, provides updates on new course launches, upcoming Web conference seminars, training programs and events, and NHI policy changes.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2011-09-01
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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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United States. Federal Highway Administration. Office of Operations Research and Development
2011-09-01
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Technological advancements could help to empower people with disabilities by addressing their mobility needs, however, the benefits of such advancement have not yet reached this segment of the traveling public. There is an opportunity to explore the suite of new technologies, such as wireless, dedicated short-range communication (DSRC), global posi
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