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RECOMMENDED PROCEDURES FOR VEHICLE CRASH TESTING OF HIGHWAY APPURTENANCES
This report which is a synthesis of existing information on barrier technology, test methods, and human tolerance, recommends procedures for conducting passenger vehicle crash tests of roadside…
LOCATION, SELECTION, AND MAINTENANCE OF HIGHWAY TRAFFIC BARRIERS
JUDICIOUS APPLICATION OF CURRENT STATE-OF-THE-ART INFORMATION ON TRAFFIC BARRIERS SHOULD RESULT IN SAFER HIGHWAYS. TRAFFIC BARRIERS, AS DEFINED HEREIN, CONSIST OF (1) LONGITUDINAL SYSTEMS, SUCH AS…
GUARDRAIL-BRIDGE RAIL TRANSITION DESIGNS. VOLUME 1: RESEARCH REPORT. FINAL REPORT
This project was concerned with the transition designs used between W-beam and thrie guardrail, and rigid bridge rail parapets or wingwalls. State designs submitted to the Federal Highway…
PERFORMANCE OF LONGITUDINAL TRAFFIC BARRIERS
TLDR
A matrix of five guardrail, two median barrier, and four bridge systems was evaluated with full-scale crash tests for occupant risk with 1,800-lb sedans with the results evaluated using the recommended values of NCHRP Report 230.
Development of Energy-Absorbing Composite Utility Pole
The serious hazard presented by unforgiving timber utility poles installed along the nation’s roadways has long been recognized by the roadside safety community. However, relatively little attention…
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HIGHWAY GUARDRAILS: SAFETY FEATURE OR ROADSIDE HAZARD?
On the basis of reported accident data, from 50 to 60% of guardrail accidents involve an injury or a fatality. From this highway engineers have concluded that guardrail installations are a roadside…
車両搭載型緩衝装置の性能および運用実態について(National Cooperative Highway Research Program Synthesis of Highway Practice 182)
IMPROVING THE COMPATIBILITY OF VEHICLES AND ROADSIDE SAFETY HARDWARE
The objectives of this study were to 1) identify current and future vehicle characteristics that are potentially incompatible with existing roadside safety hardware, 2) assess opportunities for and…
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AN ANALYSIS OF GUARDRAIL AND MEDIAN BARRIER ACCIDENTS USING THE LONGITUDINAL BARRIER SPECIAL STUDIES (LBSS) FILE, VOLUME I: FINAL REPORT
In the study, the Longitudinal Barrier Special Studies (LBSS) file was cleaned for use in examining the real-world performance of longitudinal barriers. Given that impact speeds were mostly missing…
HEAVY-VEHICLE TESTS OF TUBULAR THRIE-BEAM RETROFIT BRIDGE RAILING
This program was directed toward further test and evaluation of a retrofit bridgerail design developed in an earlier FHWA program. In this series six tests were performed using vehicles ranging from…
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