Guidance for the Design and Application of Shoulder and Centerline Rumble StripsThis report provides guidance for the design and application of shoulder and centerline rumble strips as an effective crash reduction measure, while minimizing adverse effects for motorcyclists, bicyclists, and nearby residents. Using the results of previous studies and the research conducted under this project, safety effectiveness estimates were developed for shoulder rumble strips on rural freeways and rural two-lane roads and for centerline rumble strips on rural and urban two-lane roads. |
Contents
Summary | 1 |
Section 2 Magnitude and Nature of Highway Safety Concerns | 7 |
Section 3 Purpose Types and Dimensions | 13 |
Copyright | |
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ambient analysis approaches Asphalt before-after bicyclists ble strips centerline rumble strips CL Not significant Combined Crash counts crash data crash frequency crash type drivers edgeline effectiveness of centerline effectiveness of shoulder evaluation of shoulder frwy ft RA horizontal curves included length milled rumble strips Minnesota multilane divided highways noise Non-edgeline nontreatment sites Number of sites Overdispersion p-value Estimate passing zones Pennsylvania percent change indicates percent reduction reduction in SVROR roadway types rumble strip dimensions rumble strip patterns rumble strips installed rural freeways rural multilane divided rural two-lane roads safety effectiveness safety evaluation shoulder and centerline shoulder rumble strips shoulder width sideswipe significant at 90 sound level difference speed standard error statistically significant strips are installed SVROR crashes SVROR FI crashes Table tangent TOT crashes transportation agencies travel lane treatment sites undivided highways nonfreeways Urban freeways urban two-lane roads variables vibration videolog