Rolled Rumble Strips
Rolled rumble strips are 32-mm-deep, 40-mm-wide rounded or V-shaped grooves pressed into hot asphalt pavements and shoulders when the constructed or reconstructed surface course is compacted. The strips are made by a roller with steel pipes welded to drums, which make the depressions as they pass over the hot pavement. The tire drop in rolled rumble strips is approximately 0.75 mm.
What Do Rolled Rumble Strips Sound Like?
Autos and trucks make very different sounds on rolled rumble strips. You can download and compare the sounds in a video demonstration.
Policy, Specifications and Drawings
In order to see how some States are implementing rumble strips on their roadways, we have provided policy, specifications and some engineering drawings in Adobe PDF format for your perusal.
