This project was performed to develop guidelines for changes in the geometric design and operations at intersections with the greatest potential to aid in their use by older drivers and pedestrians. A literature review identified age-related diminished capabilities that affect performance at intersections, and examined current design standards and
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The Federal Highway Administration is currently investigating the potential of using fiber reinforced composite materials for applications in highway structures. The feasibility and application of composite materials are analyzed through a series of impact tests on laboratory specimens and numerical simulation. The investigation is conducted in two
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Research has been conducted on the potential improvement of dynamic wave equation analysis methodology using in-situ soil testing techniques. As a basis for this investigation, the literature was reviewed and a summary was compiled of efforts made to date on the development of models and associated parameters for pile driving analysis. Furthermore
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This is the interim report for a study to evaluate the use of sacrificial cathodic protection for reinforced and prestressed concrete bridge members. Cathodic protection (CP) using impressed current is an accepted and common method used to provide corrosion protection to steel in concrete. Sacrificial cathodic protection, however, is relatively eas
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This project was performed to develop guidelines for changes in the geometric design and operations at intersections with the greatest potential to aid in their use by older drivers and pedestrians. A literature review identified age-related diminished capabilities that affect performance at intersections, and examined current design standards and
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ISTEA allows Federal participation in bridge painting, seismic retrofitting, and the application-of calcium magnesium acetate (noncorrosive deicing salt) to highway .bridges. These items of work are also now eligible for participation with HBRRP funds on deficient bridges. In March, 1994, the President signed a bill (enacted into law as Pub. L. 103
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This document has been written to provide information on how to apply principles of geotechnical earthquake engineering to planning, design, and retrofit of highway facilities. Geotechnical earthquake engineering topics discussed in this document include: deterministic and probabilistic seismic hazard assessment; evaluation of design ground motions
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This document presents a series of five design examples illustrating the principles and methods of geotechnical earthquake engineering and seismic design for highway facilities. These principles and methods are described in Volume I - Design Principles, FHWA-SA-97-076. The examples presented in this volume cover a wide range of problems encountered
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This plan is part of the continuing commitment by the National Highway Traffic Safety Administration and the Federal Highway Administration to reduce the number of speed-related fatalities and injuries occurring on our highways. Since the repeal of the National Maximum Speed Limit (NSML), in December 1995, many states have raised speed limits on bo
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The participant notebook was developed to proved a document that contains the visual aids for the participants as covered in the workshop of DP 105, Advanced Transportation Management Technologies. It contains the relevent information of the metropolitan intelligent transportation infrastructure elements as well as techniques/strategies and technol
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United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center
1997-04-01
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This technical summary announces the publication of conference proceedings as a Federal Highway Administration (FHWA) report (FHWA-RD-96-212) of the same title. The report represents a compilation of seven research papers presented at “The FHWA Vehicle Crash Analysis Conference” on July 8-9, 1996, at the Turner-Fairbank Highway Research Center (TFH
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This report presents the results of research on procurement-related legal and non-technical issues which may be constraining the deployment of Intelligent Transportation Systems (ITS). The report’s focus is on State and local procurement practices when Federal funds are involved. Issues arising in early ITS operational tests were researched, with f
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This document presents a series of slides from the Federal Highway Administration concerning traffic operations during the period of the 1996 Olympic Games in Atlanta, Georgia. Highway Emergency Response Operators (HEROs) assisted motorists with vehicle trouble. Public transportation in and around the Centennial Village is discussed, and statistics
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This demonstration project will provide an opportunity for policy and decision makers from transportation agencies including State and local Departments of Transportation (DOTs), Departments of Public Works (DPWs), and Metropolitan Planning Organizations (MPOs) to become aware of the state-of-the-practice technologies available to assist them in co
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This document provides the visual aids for participants in a workshop focusing on advanced transportation management technologies. It contains the relevant information of the metropolitan intelligent transportation infrastructure elements as well as techniques strategies, and technologies of each component.
Hydraulic Design Series No.4 provides an introduction to highway hydraulics. Hydrologic techniques presented concentrate on methods suitable to small areas, since many components of highway drainage (culverts, storm drains, ditches, etc) service primarily small areas. A brief review of fundamental hydraulic concepts is provided, including continuit
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United States. Department of Transportation. Federal Highway Administration
1997-03-12
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The National Economic Crossroads Transportation Efficiency Act (NEXTEA), is a six-year, $175 billion investment program to improve America's highways, bridges, transit systems, and railroads; lower the toll in lives and health care costs from motor vehicle crashes; enhance America's environment; and support mobility and economic prosperity. NEXTEA
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United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office
1997-03-01
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By passing the Intermodal Surface Transportation Efficiency Act (ISTEA) in 1991, Congress ushered in a new era for transportation, calling for more efficient and safe use of existing highway and transit infrastructure and emphasizing intermodalism - seamless integration of multiple transportation modes. Title VI of ISTEA established the Intelligent
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The goal of the activities documented in this report was to produce a prioritized list of candidate studies and issues that would guide data acquisition in this project. This goal was accomplished in three steps. First, 91 issues were compiled from earlier research in this effort. Second, a set of 14 criteria, 9 substantive and 5 methodological, we
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