IMPACT DESIGN OF CRASH CUSHIONS FOR NONSTATIONARY BARRIERS (ABRIDGMENT)

Nonstationary traffic barriers such as sign trucks with crash cushion attachments can be designed by using barrier resistance charts and acceleration-time diagrams. Simple equations for both methods were derived and results were compared with more complex computer simulations to illustrate the usefulness of the simple equations. In particular, an equation for a movable barrier resistance chart was derived from the general differential equation, and usage of the chart is discussed and exemplified. The acceleration-time diagram method is in the form of sets of simple equations based on two (or more) steps of constant crushing forces, and the method can be applied in this form for design purposes. Feasibility of the methods with regard to angular impacts can be shown by means of a few computer simulation results. The equations for drawing the barrier resistance chart and for calculating the crushing time of the first constant part of the chart are examined. /Author/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1976/594/594-007.pdf
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=IMPACT+DESIGN+OF+CRASH+CUSHIONS+FOR+NONSTATIONARY+BARRIERS+(ABRIDGMENT)&author=F.+Jung&author=A.+Billing&publication_year=1976
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• 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.
• Authors:
  • Jung, F W
  • Billing, A M
• Publication Date: 1976

Media Info

• Media Type: Digital/other
• Features: Figures;
• Pagination: p 26
• Monograph Title: Photogrammetry, water quality, safety appurtenances, and shoulder design
• Serial:
  • Transportation Research Record
  • Issue Number: 594
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Barriers (Roads); Command guidance; Cushioning materials; Differential equations; Impact studies; Simulation
• Uncontrolled Terms: Barriers
• Old TRIS Terms: Command systems; Cushioning
• Subject Areas: Design; Highways; Materials; Safety and Human Factors;

Filing Info

• Accession Number: 00148945
• Record Type: Publication
• ISBN: 030902563X
• Files: TRIS, TRB
• Created Date: Apr 13 1977 12:00AM