Rumble strips (also known as sleeper lines or alert strips) are a road safety feature to alert inattentive drivers of potential danger, by causing a tactile vibration and audible rumbling transmitted through the wheels into the vehicle interior. A rumble strip is applied along the direction of travel following an edgeline or centerline, to alert drivers when they drift from their lane.What are rumble strips used for in streets?
Rumble strips: what are they used for? Rumble strips, raised profile line markings or audio tactile profiled (ATP) road markings, are road markings that generate noise and vibration when you drive over them . The lines are painted like normal road markings except the machine drops ridges (also called blocks or ribs) at intervals.How are rumble strips made?
Most commonly, a rumble strip is created by heavily grooving the pavement, creating a corrugated surface which will jar a car when its wheels pass over it. The rumble strip is often embedded into the pavement, so that plows can remove snow and ice from the road.How do rumble strips work?
Rumble strips work by making both noise and vibration inside your car. Typically transverse grooves, about 3 inches by 12 inches and spaced 6 inches apart, are cut into the pavement to the right of the travel lane.