United States Permit Test Coach
Traffic signalsQuestion 101 of 223
Signal face with the top red circle lit and flashing, shown with short rays around it

What must you do when you face this signal on an approach to an intersection?

  1. Slow down and go on with care if the road is clear
  2. Stop only if a pedestrian is in the crosswalk
  3. Stop, then turn left, but not right
  4. Stop, then go when it is your turn, as at a STOP sign
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Correct answer: Stop, then go when it is your turn, as at a STOP sign

A flashing red signal works like a STOP sign. Make a full stop at the stop line or crosswalk. Then go only when it is your turn to go.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD), 11th Edition with Revision 1 (FHWA, December 2025), Section 4A.04 Meanings of Flashing Vehicular Signal Indications, page 686

Practice traffic signals

Questions last reviewed: 18 October 2026