United States Permit Test Coach
Traffic signalsQuestion 107 of 223

In a signal face with lights side by side, which color is at the far left?

  1. Yellow
  2. Red
  3. Green
  4. The color depends on the road
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Correct answer: Red

In a horizontal signal face, red is always to the left of yellow and green. The order from left to right is red, yellow, green.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD), 11th Edition with Revision 1 (FHWA, December 2025), Section 4E.05 Positions of Signal Indications within a Horizontal Signal Face, page 720

Practice traffic signals

Questions last reviewed: 18 October 2026