Citation

Owings RP, Cantor C, Adair JW. Transp. Res. Rec. 1976; 594: 45-47.

Copyright

(Copyright © 1976, Transportation Research Board, National Research Council, National Academy of Sciences USA, Publisher SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

A study has been completed which involved the analysis and computer simulation of vehicle impacts with breakaway sign and luminaire supports, the design and construction of a pendulum impact test facility that incorporates simulated vehicle crush and a controlled foundation-soil interface, and the impact testing of breakaway supports. The study also attempted to specify full-scale vehicle impact tests, correlation of computer-simulated laboratory, and full-scale tests, and the development of foundation design guidelines and laboratory acceptance test criteria that will ensure satisfactory performance of breakaway supports. The analysis is briefly described, and the tests are outlined. The study which enabled better understanding of the entire impact phenomenon, gave good correlation between the results of analysis, computer simulation, laboratory testing and full-scale testing. The study enabled the development of simple laboratory test procedures and acceptance criteria that would ensure satisfactory performance. Conditions for satisfactory low-speed and high- speed performance are discussed.