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MASH Test 3-11 Evaluation of Modified TxDOT Round Wood Post Guardrail System.
| 题名： | MASH Test 3-11 Evaluation of Modified TxDOT Round Wood Post Guardrail System. |
| 作者： | Kovar, J. C.; Bligh, R. P.; Griffith, B. L.; Kuhn, D. L.; Schroeder, G. E. |
| 关键词： | Guardrail, Crash testing, Roadside safety, Manual for Assessing Safety Hardware (MASH), Timber post, Wood post, Round post, TxDOT(Texas Department of Transportation), American Association of State Highway and Transportation Officials |
| 摘要： | The purpose of the testing reported herein was to assess the performance of the Modified TxDOT Round Wood Post Guardrail System in soil according to the safety-performance evaluation guidelines included in American Association of State Highway and Transportation Officials’ Manual for Assessing Safety Hardware (MASH) for Test Level Three. The modification involved reducing the guardrail post embedment depth from 40 inches to 36 inches to reduce the soil resistance and decrease the force required to deflect the post through the soil. The crash test performed was in accordance with MASH Test 3-11 criteria, which involves a 2270P pickup truck impacting the barrier at a target impact speed and angle of 62 mi/h and 25 degrees, respectively. The Modified TxDOT Round Wood Post Guardrail System in soil successfully contained and redirected the pickup truck. The barrier performed acceptably for MASH Test 3-11. The maximum dynamic deflection and permanent deformation were 44.1 inches and 37.0 inches, respectively. |
| 报告类型： | 科技报告 |
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