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原文传递 Evaluation of Barriers for Very High Speed Roadways.

题名：	Evaluation of Barriers for Very High Speed Roadways.
作者：	R. P. Bligh; N. M. Sheikh; A. Y. Abu-Odeh; W. L. Menges;
关键词：	high-speed roadways,barriers,bridge rail;longitudinal barriers, crash testing, roadside safety;
摘要：	As TxDOT plans for future expansion of the states highway network, interest in higher design speeds has been expressed as a means of promoting faster and more efficient travel and movement of goods within the state. TxDOT funded project 0-6071 as part of a proactive consideration of safety on these highspeed facilities. This project began the process of developing roadside safety hardware suitable for use on high-speed highways. The impact conditions selected for the design, testing, and evaluation of this highspeed hardware include a speed of 85 mi/h and an angle of 25 degrees for barrier impacts. The design vehicles are those specified by the pending AASHTO Manual for Assessing Safety Hardware (MASH) and include a 5000-lb, 1/2-ton, 4-door pickup truck and a 2425-lb passenger car. After consideration of several barrier systems, two designs were selected for further evaluation through full-scale crash testing. These included an energy absorbing bridge rail concept and a modified wood post thrie beam guardrail. The results of the full-scale crash testing are presented and recommendations for future research are discussed. / Title Note: Technical rept. / Supplementary Notes: Sponsored by Texas Dept. of Transportation, Austin. Research and Technology Implementation Office. and Federal Highway Administration, Austin, TX. Texas Div. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5301 Shawnee Road, Alexandria, VA, 22312, USA. / NTIS Prices: PC A09 / NTIS In-house Control Codes: utatti/dotfha;12091,1101
报告类型：	科技报告