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Title: W-BEAM GUIDERAIL TRANSITION FROM LIGHT TO HEAVY POSTS
Accession Number: 00490177
Record Type: Component
Availability: Find a library where document is available Abstract: Two full-scale crash tests evaluated a transition between light- and heavy-post W-beam guiderail. The transition consisted of lowering the rail height from 30 to 27 inches and reducing the spacing of the light posts as the heavy-post section is approached. The crash-test impacts were just upstream of the heavy-post section using 1,800- and 4,500-pound sedans. Test results were generally acceptable in terms of National Cooperative Highway Research Program (NCHRP) criteria. Although the exit trajectory of the 4,500-pound sedan exceeded the recommended threshold limits, the vehicle was not judged to present a significant threat to other vehicles.
Supplemental Notes: This paper appears in Transportation Research Record No. 1198, Roadside Safety Features. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
Monograph Title: Monograph Accession #: 01413999
Authors: Herring, Donald GBryden, James EPagination: p. 55-61
Publication Date: 1988
Serial: ISBN: 0309047722
Features: Figures
(3)
; Photos; References
(6)
; Tables
(2)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Design; Highways; Safety and Human Factors; I85: Safety Devices used in Transport Infrastructure
Files: TRIS, TRB
Created Date: Dec 31 1989 12:00AM
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