What is the purpose of rumble strips?

Question

Rumble strips create noise and vibrations to warn drowsy or inattentive drivers that they are straying off of the road or are approaching a stop sign or signal.

Accepted Answer

Through vibration and sound, they alert inattentive drivers to the fact that their vehicles have left the travel lane.

Answer

They alert drivers to potential tire problems.

Answer

They test a vehicle's shock absorbers.

What is the purpose of rumble strips?

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