Rumble Strips

The purpose of this policy is to define when and where continuous longitudinal rumble strips may be applied on the state highway system. Also refer to ADOT ITD policy MGT 02-1 Bicycle Policy. The purpose of continuous longitudinal rumble strips is to enhance safety by preventing run-off-road (ROR) collisions with fixed object and rollovers due to driver overcorrection type crashes. These rumble strips are intended to alert drivers by creating an audible (noise) and tactile (rumble or vibratory) warning sensation that their vehicle is leaving the traveled way (traffic lane) and that a steering correction is required. Before and after accident studies have indicated that ROR type crashes may be reduced significantly by the use of continuous longitudinal rumble strips

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