United States Permit Test Coach
Pavement markingsQuestion 163 of 223

What is a longitudinal rumble strip for?

  1. To show where pedestrians cross
  2. To warn drivers by vibration and sound that they left the lane
  3. To mark a place to stop
  4. To mark the end of a no-passing zone
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Correct answer: To warn drivers by vibration and sound that they left the lane

A rumble strip is a rough or raised surface along the lane. It makes noise and vibration when a vehicle leaves the travel lane.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD), 11th Edition with Revision 1 (FHWA, December 2025), Section 3K.01 Longitudinal Rumble Strip Markings, page 683

Practice pavement markings

Questions last reviewed: 18 October 2026