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A band of transverse grooves or raised ribs across the carriageway.
Also known as: Sleeper line, Audible warning strip, Grooves across the road, Milled alert strip
A rumble strip works through sound and vibration rather than sight, which is why it is used where a driver may be inattentive or drowsy. Edge-line versions run continuously along the shoulder; transverse ones are grouped in bands approaching a hazard.
Alerts a driver by noise and vibration rather than visually, using grooves or raised ribs in the road surface.
Contexts: Public information
Comes in two functionally distinct forms: continuous edge or centre-line strips against drift, and transverse bands warning of an approaching hazard.
Contexts: Public information
Is a documented noise nuisance near housing, which is why installations are often omitted or milled differently in residential areas.
Contexts: Public information
A series of shallow transverse grooves or raised bars cut or laid across a traffic lane or along its edge, in bands of several metres.