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Performance Analysis of Centerline and Shoulder Rumble Strips Installed in Combination in Washington State
| 题名： | Performance Analysis of Centerline and Shoulder Rumble Strips Installed in Combination in Washington State |
| 作者： | Olson, D.; Manchas, B.; Sujka, M. |
| 关键词： | Rumble strips##Two lane roads##Centerline warning systems##Washington State##Shoulder warning systems##Highway design##Accident reduction##Countermeasures##Traffic safety##Traffic volumes##Centerline crossover collisions##Road shoulders##State highway departments##Crash rates##Lane departure##Centerline rumble strips(CLRS)##Run-off-the road collision##Cross-over crashes## |
| 摘要： | WSDOT began installing rumble strips on undivided highways in 1999 as a countermeasure for roadway departure crashes. Installations on the shoulders were intended to reduce run-off-the-road crashes, while centerline rumble strips targeted reductions in cross-centerline crashes. A March 2011 report detailed the performance of centerline rumble strips on Washington State highways. This study: Examines the combined effects of centerline and shoulder rumble strips; Details the performance of rumble strips on undivided highways in Washington State under a variety of conditions; Explores various traffic volumes, geometric conditions, lane and shoulder widths, and driver contributing circumstances; and Compares various installation scenarios with shoulder and centerline rumble strip installation at different times, as well as simultaneous installation. |
| 总页数： | 115 |
| 报告类型： | 科技报告 |
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