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原文传递 A SILVER BULLET: SHOULDER TEXTURE TREATMENTS.

题名：	A SILVER BULLET: SHOULDER TEXTURE TREATMENTS.
作者：	Walls-A
关键词：	AUDIBLE-WARNING-DEVICES; BENEFIT-COST-ANALYSIS; BICYCLES-; HIGHWAY-SAFETY; MILLING-; PEDESTRIAN-SAFETY; RAN-OFF-ROAD-ACCIDENTS; ROAD-SHOULDERS; ROLLING-; RUMBLE-STRIPS; TEXTURE-; TRAFFIC-SAFETY
摘要：	Waiting for a silver bullet or an "ultimate" solution is not usually the best way to deal with today's highway safety problems. However, one "silver bullet" safety enhancement is the proper selection and installation of shoulder texture treatments, also known as rumble strips. Field experience indicates that significant reductions in run-off-the-road accidents can be anticipated when audible delineation and warning devices are applied to road shoulders. The reported benefit-to-cost ratios of shoulder treatments, where sufficient shoulder width already exists, range from 20-to-1 for rolled-in strips to 5 (or more)-to-1 for milled-in strips. The ratios for milled-in shoulder treatments have been improving over the last several years as equipment and application become more cost-effective and efficient. Because rumble strips could also be an important solution to run-off-the-road problems in metropolitan areas, areas where bicycles are present, and areas where pedestrians walk along the roadside, it is also necessary to develop guidelines on the application of audible roadway delineation on all sections of the National Highway System.
总页数：	Public Roads. 1999/01. 62(4) pp3 (1 Phot.)
报告类型：	科技报告