Rumble Strip - Construction and Types

Construction and Types

The rumble strip formats are:

1. Rolled-in, applied to newly laid warm moldable asphalt pavement.
2. Milled-in, applied to existing hardened asphalt or concrete roads.
3. Formed, a corrugated form is pressed into fresh concrete.
4. Raised plastic or ceramic units, fastened to asphalt or concrete pavement and often with a reflector built into the edge. Botts' dots are a common installation.
5. Raised thermal plastic strips that are melted and fused to the pavement.
6. "Smart car" virtual shoulder rumble strips, referred to as a lane departure warning system, available on luxury vehicles and commercial trucks. The alarm is similar to the sound produced when striking rumble strips.
7. "Smart car" virtual transverse rumble strips to prevent cross-path crashes at intersections are being developed.

Surface-mount raised pavement reflectors are easily removed by the blade on snowplows and thus are not practical in many locations in the United States and Canada.