BREAKAWAY OVERHEAD SIGN BRIDGES, CRASH TESTING

TEN VEHICLE CRASH TESTS ON AN OVERHEAD SIGN BRIDGE WERE DESCRIBED. THE PURPOSE WAS TO DETERMINE THE FEASIBILITY OF LARGE BREAKAWAY SUPPORTS FOR THESE BRIDGES. THE BEHAVIOR OF THE OVERHEAD SIGN BRIDGE WHEN SUBJECTED TO VEHICLE IMPACT LOADS ALSO WAS DETERMINED. THE VEHICLES RANGED IN WEIGHT FROM 2,100 TO 5,170 LB. IMPACT SPEEDS RANGED FROM 25.7 TO 75.3 MPH. THESE TESTS INDICATE THAT THE BREAKAWAY SAFETY FEATURES OF THE OVERHEAD SIGN BRIDGE WILL GREATLY REDUCE THE FORCES ON IMPACTING VEHICLES. /AUTHOR/

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/hrr/1971/346/346-004.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309019575
• 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:
  • Ivey, D L
  • Olson, R M
  • Buth, C E
  • Hirsch, T J
  • Hawkins, D L
• 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: Photos; References; Tables;
• Pagination: pp 35-46
• Monograph Title: Design of Sign Supports and Structures
• Serial:
  • Highway Research Record
  • Issue Number: 346
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Breakaway supports; Crash tests; Crashes; Impacts; Loads; Overhead traffic signs; Speed; Structural supports; Testing
• Old TRIS Terms: Supports
• Subject Areas: Highways; Research; Safety and Human Factors;

Filing Info

• Accession Number: 00221374
• Record Type: Publication
• ISBN: 0309019575
• Report/Paper Numbers: HS-011 999
• Files: TRIS, TRB
• Created Date: Sep 13 1971 12:00AM