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Title: ASSESSMENT OF NCHRP REPORT 350 TEST CONDITIONS
Accession Number: 00933664
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: The appropriateness of test conditions specified in NCHRP Report 350 was assessed. The assessment focused on the basic Test Level 3 and addressed two areas of interest: the effects of higher speed limit on impact speed and the appropriateness of 25 deg for the impact angle. The following conclusions and recommendations were drawn on the basis of the results of the analysis: (a) the current test impact speed of 100 km/h (62.2 mph) should be maintained, (b) the current impact angle of 25 deg for Test 11 of length-of-need sections of permanent longitudinal barriers should be maintained, (c) the test impact angle should be reduced from 25 deg to 20 deg for Test 11 of length-of-need sections of temporary longitudinal barriers, and (d) the test impact angle should be reduced from 25 deg to 20 deg for Test 21 of barrier transition sections. However, the selection of impact conditions is more a policy decision than a technical issue to be resolved in the update of NCHRP Report 350 guidelines.
Supplemental Notes: This paper appears in Transportation Research Record No. 1797, Hydrology, Hydraulics, and Water Quality; Roadside Safety Features 2002.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Mak, K KBligh, R PPagination: p. 38-43
Publication Date: 2002
Serial: ISBN: 0309077257
Features: References
(4)
; Tables
(3)
TRT Terms: Identifier Terms: Uncontrolled Terms: Subject Areas: Design; Highways; Research; Safety and Human Factors; I85: Safety Devices used in Transport Infrastructure
Files: TRIS, TRB, ATRI
Created Date: Nov 8 2002 12:00AM
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