Performance Evaluation of the Guardrail to Concrete Barrier Transition - Update to NCHRP 350 Test No. 3-21 with 28
Karla Lechtenberg, Ronald Faller, Dean Sicking, John Rohde, Bob Bielenberg, John Reid, Brian Coon
Based on the proposed changes to the National Cooperative Highway Research Program (NCHRP) Report No. 350 guidelines, NCHRP Project 22-14(2) researchers deemed it appropriate to evaluate a guardrail to concrete barrier transition system prior to finalizing the new crash testing procedures and guidelines. For this effort, the W-beam guardrail to concrete barrier transition system was selected for evaluation. One full-scale vehicle crash test was performed on the approach guardrail transition system in accordance with the Test Level 3 (TL-3) requirements presented in the Update to NCHRP Report No. 350. For the testing program, a 2270P pickup truck vehicle, which was a ½-ton, four-door vehicle with a 711 mm (28 in.) c.g. height, was used. The guardrail to concrete barrier transition system provided an acceptable safety performance when impacted by the ½-ton, four-door pickup truck, thus meeting the proposed TL-3 requirements presented in the Update to NCHRP Report No. 350.
Highway Safety, Roadside Appurtenances, Longitudinal Barriers, Guardrail, Transition, Crash Test, Compliance Test, NCHRP 350 Update
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