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PERFORMANCE OF THE HI-DRO CUSHION CELL BARRIER VEHICLE-IMPACT ATTENUATOR

THE HI-DRO CUSHION CELL BARRIER VEHICLE-IMPACT ATTENUATOR CONSISTS BASICALLY OF WATER-FILLED PLASTIC TUBES WITH ORIFICES IN THE CAPS. A COLLIDING VEHICLE FORCES THE WATER OUT THE ORIFICES, THEREBY EXPERIENCING A RESTRAINING FORCE THAT DEPENDS ON ORIFICE SIZE AND NUMBER, NUMBER OF TUBES BEING COMPRESSED, AMOUNT OF WATER IN THE TUBES, AND OTHER DESIGN CONSIDERATIONS. SIX FULL-SCALE CRASH TESTS WERE CONDUCTED TO EVALUATE THE EFFECTIVENESS OF THE BARRIER AS A VEHICLE-IMPACT ATTENUATOR. THE RESULTING TEST DECELERATIONS WERE SUBSTANTIALLY LOWER THAN THOSE FROM A RIGID WALL TEST INCLUDED FOR COMPARISON PURPOSES. OTHER FULL-SCALE TESTS HAVE BEEN CONDUCTED ELSEWHERE. DATA FROM A COMPUTER SIMULATION MODEL OF THE CRASH CUSHION DEVELOPED AT BRIGHAM YOUNG UNIVERSITY SHOWED EXCELLENT AGREEMENT WITH DATA FROM SELECTED TESTS PERFORMED IN THIS SERIES. /AUTHOR/

Record URL:
- http://onlinepubs.trb.org/Onlinepubs/hrr/1971/343/343-008.pdf
Supplemental Notes:
- Sponsored by Committee on Traffic Safety Barriers and Sign, Signal and Lighting Supports and presented at the 50th Annual Meeting. 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
Authors:
- Hayes, Gordon G
- Ivey, Don L
- Hirsch, T J
Conference:
- 50th Annual Meeting of the Highway Research Board
- Location: Washington District of Columbia, United States
- Date: 1971-1-18 to 1971-1-22
Publication Date: 1971

Media Info

Media Type: Print
Features: Figures; References; Tables;
Pagination: pp 93-99
Monograph Title: Design of traffic safety barriers
Serial:
- Highway Research Record
- Issue Number: 343
- Publisher: Highway Research Board

Subject/Index Terms

TRT Terms: Barriers (Roads); Crash cushions; Crash tests; Crashes; Deceleration; Impacts; Information processing; Mathematical models; Performance; Simulation; Testing; Vehicles
Uncontrolled Terms: Barriers; Data; Models
Old TRIS Terms: Attenuators; Hi-dro cushion cell
Subject Areas: Design; Highways; Research; Vehicles and Equipment;

Filing Info

Accession Number: 00203552
Record Type: Publication
Files: TRIS, TRB
Created Date: Jul 25 1971 12:00AM