[PDF] Recommended Procedures For The Safety Performance Evaluation Of Highway Features eBook

Author : John F. Carney
Publisher : Transportation Research Board
Page : 100 pages
File Size : 30,87 MB
Release : 1994
Category : 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.

Author : American Association of State Highway and Transportation Officials. Task Force for Roadside Safety
Publisher : AASHTO
Page : 345 pages
File Size : 21,6 MB
Release : 2011
Category : Technology & Engineering
ISBN : 1560515090

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"The Roadside Design Guide presents a synthesis of current information and operating practices related to roadside safety and is written in dual units-metric and U.S. Customary. This book is a guide. It is not a standard, nor is it a design policy. It is intended to use as a resource document from which individual highway agencies can develop standards and policies. Although much of the material in the guide can be considered universal in its application, several recommendations are subjective in nature and may need modification to fit local conditions. However, it is important that significant deviations from the guide be based on operational experience and objective analysis. The 2011 edition of the AASHTO Roadside Design Guide has been updated to include hardware that has met the evaluation criteria contained in the National Cooperative Highway Research Program (NCHRP) Report 350: Recommended Procedures for the Safety Performance Evaluation of Highway Features and begins to detail the most current evaluation criteria contained under the Manual for Assessing Safety Hardware, 2009 (MASH). For the most part, roadside hardware tested and accepted under older guidelines that are no longer applicable has not been excluded in this edition." -- AASHTO website.