Performance and Operational Experience of Crash Cushions

Performance and Operational Experience of Crash Cushions
Author: John F. Carney
Publisher: Transportation Research Board
Total Pages: 100
Release: 1994
Genre: Technology & Engineering
ISBN: 9780309056649
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This synthesis report will be of special interest to maintenance, construction, and traffic engineers and others interested in the use of impact attenuation devices or crash cushions for highway operations. Information is provided on the performance and operational experience of 13 crash cushion devices in current use in the United States and Canada, including physical characteristics, test results, and guidelines for use. Both permanent and temporary devices are included. Crash cushions can provide a cost-effective method for reducing or alleviating motor vehicle related injuries or fatalities, which constitute a major societal cost. This report of the Transportation Research Board presents information on the physical and impact performance characteristics of 13 crash cushions in current use in North America. Information on performance evaluation guidelines, physical characteristics, performance characteristics, selection considerations, and the operational experience of individual designs for crash cushions is provided. The synthesis concludes with possible future trends for crash cushions and appendices containing the crash test requirements of NCHRP Report 350: Recommended Procedures for the Safety Performance Evaluation of Highway Features, a crash cushion glossary, and a bibliography.

The Manual for Bridge Evaluation

The Manual for Bridge Evaluation
Author: American Association of State Highway and Transportation Officials. Subcommittee on Bridges and Structures
Publisher: AASHTO
Total Pages: 41
Release: 2011
Genre: Bridges
ISBN: 1560514965
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Cost-effective Practices for Off-system and Local Interest Bridges

Cost-effective Practices for Off-system and Local Interest Bridges
Author: F. W. Klaiber
Publisher: Transportation Research Board
Total Pages: 143
Release: 2004
Genre: Bridges
ISBN: 0309070031
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TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 327: Cost-Effective Practices for Off-System and Local Interest Bridges examines off-system bridge design, construction, maintenance, financing, rehabilitation, and replacement. For this report, 'off-system' refers to those bridges typically owned and maintained by local agencies, and by state agencies on rural and other low-volume roads.

Multimodal Aspects of Statewide Transportation Planning

Multimodal Aspects of Statewide Transportation Planning
Author: Henry L. Peyrebrune
Publisher: Transportation Research Board
Total Pages: 68
Release: 2000
Genre: Transportation
ISBN: 9780309068697
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This synthesis report will be of interest to department of transportation ( DOT) administrators, planning supervisors, managers, and staffs, as well as to planning consultants that work with them. It provides information for practitioners interested in the results of attempts to apply multimodal considerations at the statewide level and identifies key research findings. It covers post-ISTEA (Intermodal Surface Transportation Efficiency Act of 1991) processes and projects and both passenger and freight activities. The report examines the application of three multimodal aspects: alternatives, modal mix, and integration into three statewide planning functions, which include state planning, corridor studies, and financing, budgeting, and programming. The emphasis is on implementation. This report of the Transportation Research Board documents processes and research currently under development, using three approaches: a literature review, results of a survey of state DOTs, and five case studies. It cites the following states with exemplary practices in multimodal/intermodal transportation based on a 1998 report by the policy research project at the University of Texas on Multimodal/ Intermodal Transportation: Florida, Minnesota, Oregon, Pennsylvania, Virginia, Washington, and Wisconsin.

Information Requirements for Transportation Economic Analysis

Information Requirements for Transportation Economic Analysis
Author: National Research Council (U.S.). Transportation Research Board
Publisher: Transportation Research Board
Total Pages: 164
Release: 2000
Genre: Infrastructure (Economics)
ISBN: 9780309071246
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Conference participants sought to identify gaps in the data and analytic tools needed to support economic analysis as related to transportation investment and to develop research proposals designed to fill those gaps. The opening day of the conference featured presentations by economists, transportation analysts, and policy makers on the theory and practice of economic analysis and its usefulness to decision makers. The second and third days of the conference revolved around participatory workshops. Six separate working groups deliberated over three questions: (1) What is the appropriate level of investment in transportation to encourage economic health? (2) How should projects be prioritized within a multimodal transportation program? (3) How much revenue is likely to flow from user charges, tolls, and other sources? At the conclusion of its deliberations, each working group developed a list of research proposals, which it then presented to the conference as a whole.