Development of Low-Volume Curb-Type Bridge Railings for Timber Bridge Decks
REPORT NUMBER
TRP-03-031-93
AUTHORS
Michael Ritter, Ronald Faller, Dean Sicking
PUBLICATION DATE
1993-12-01
ABSTRACT
Three low-height, curb-type timber bridge railings, 12-in. high square and rectangular cubrs and a 14-in. high trapezoidal curb, were developed for longitudinal timber bridge decks located on very low-volume roads. The crash test program included 34 developmental tests and four full-scale vehicle crash tests. All curb rails successfully redirected a 3/4-ton pickup truck impacting at a speed of 15 mph and an angle of 15 degrees. The safety performance of all three curb-type bridge railings was acceptable according to the general evaluation criteria for longitudinal barriers described in the National Cooperative Highway Research Report No. 350, Recommended Procedures for the Safety Performance Evaluation of Highway Features.
KEYWORDS
Highway Safety, Roadside Safety, Bridge rail, Timber bridge deck, Curb, Low-volume, NCHRP 350, Crash Test, Compliance Test, Longitudinal Barrier
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