This guide is intended to support managers in facilitating successful protection and/or establishment of native vegetation as an integral part of road design and construction. This report summarizes the concepts and approaches developed in Roadside Revegetation: An Integrated Approach to Establishing Native Plants, from a manager’s perspective. Whi
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This study was aimed at completing the research to develop and scrutinize minimum levels for pavement marking retroreflectivity to meet nighttime driving needs. A previous study carried out in the 1990s was based on the CARVE model developed at Ohio University and resulted in a table of minimum levels of pavement marking retroreflectivity values. S
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United States. Department of Transportation. Federal Highway Administration
2007-10-01
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Focus: Accelerating Infrastructure Innovations
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PDF
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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The study reaches two conclusions using several different national income accounting measures: the rate of growth of highways is below the rate of growth of Gross Domestic Product (GDP) and the nominal share of highways in (adjusted) GDP and (adjusted) U.S. gross output is small. National income accounting measures do not include spillovers, multip
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At the heart of all concrete pavement projects is the concrete itself. This manual is intended as both a training tool and a reference to help concrete paving engineers, quality control personnel, specifiers, contractors, suppliers, technicians, and tradespeople bridge the gap between recent research and practice regarding optimizing the performanc
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United States. Federal Highway Administration. Office of International Programs
2007-10-01
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PDF
Transportation and law enforcement agencies in the Netherlands have developed a robust weigh-in-motion (WIM) data management system that supports a broad array of vehicle weight regulation and enforcement activities, as well as long-term planning and decision-making. The system, which Dutch officials describe as "a better way of doing business," ha
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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 Infrastructure Research and Development
2007-10-01
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PDF
The Hydraulics Laboratory is a state-of-the art facility used to conduct a variety of experiments pertaining to water. Among other things, this laboratory provides a means of testing the hydraulic properties of submerged bridges and the hydraulic properties of highway drainage structures and stream crossings. The laboratory provides operational eng
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United States. Federal Highway Administration. Center for Accelerating Innovation
2007-10-01
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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.
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
2007-10-01
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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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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2007-09-18
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PDF
The gasoline volume shown in this report is a cumulative tabulation of gross volume reported by wholesale distributors to State motor fuel tax agencies. It includes highway use, nonhighway use and losses. There is a lag of up to 6 weeks between the wholesale transactions reported and retail sales to consumers. Travel trends are reported monthly in
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This report presents the results of a case study evaluation of a Maintenance Decision Support System (MDSS) project under a program funded by the U.S. Department of Transportation’s (USDOT) Intelligent Transportation Systems (ITS) Joint Program Office. The Federal Highway Administration (FHWA) Road Weather Management Program (RWMP) has sponsored de
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This Desktop Reference documents the estimates of the crash reduction that might be expected if a specific countermeasure or group of countermeasures is implemented with respect to intersections, roadway departure and other non-intersection crashes, and pedestrian crashes. The estimates of crash reduction are known as Crash Reduction Factors (CRFs)
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