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Title:

CRASH-TEST EVALUATION OF BARRIERS INSTALLED ON A CURVED OFF RAMP

Accession Number:

00370559

Record Type:

Component

Availability:

Find a library where document is available


Order URL: http://worldcat.org/isbn/0309033721

Abstract:

Although much has been learned about a relatively large number and variety of barrier systems installed on straight and level alignments, there has been a total lack of information on vehicle and barrier behavior and curved-superelevated-sloped alignments. Some recent catastrophic accidents on freeway off ramps have suggested that a better understanding of barriers mounted on these types of alignments was in order. Accordingly, a test program was designed to evaluate the performance of three barrier configurations mounted on a curved, superelevated structure with a downgrade. The objective of this project was to evaluate the performance of the three barrier configurations by using three vehicle types for comparison. The project included full-scale tests of three basic barrier installations: (a) concrete safety shape with vertical orientation, (b) concrete safety shape installed perpendicular to the superelevated roadway, and (c) tubular Thrie-beam and collapsing tube retrofit. Crash tests were conducted by using three vehicle types impacting a 40 mph (65 km/h) and a 15 deg angle (as measured from curve tangent). The three vehicle types were (a) 1800-lb (820-kg) mini-compact car (Honda Civic), (b) 2250-lb (1020-kg) subcompact (Vega), and (c) 20000-lb (9070-kg) school bus (1970 66-passenger Ford/Wayne). All three barrier systems contained and redirected the full range of test vehicles. In terms of vehicle stability and acceleration, the tubular Thrie-beam retrofit was superior. However, there was some barrier damage in the bus test of this system. (Authors)

Supplemental Notes:

Publication of this paper sponsored by Committee on Safety Appurtenances. 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 Accession #:

00380038

Report/Paper Numbers:

HS-035 206

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Bronstad, M E
Kimball Jr, C E
McDevitt, C F

Pagination:

pp 19-27

Publication Date:

1982

Serial:

Transportation Research Record

Issue Number: 868
Publisher: Transportation Research Board
ISSN: 0361-1981

Conference:

61st Annual Meeting of the Transportation Research Board

Location: Washington District of Columbia, United States
Date: 1982-1-18 to 1982-1-22

ISBN:

0309033721

Media Type:

Print

Features:

Figures (8) ; Photos (78) ; References (2) ; Tables (1)

Uncontrolled Terms:

Barriers

Old TRIS Terms:

Subject Areas:

Highways; Public Transportation; Research; Safety and Human Factors; I85: Safety Devices used in Transport Infrastructure

Files:

HSL, TRIS, TRB

Created Date:

Feb 28 1983 12:00AM

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