Traffic signalsQuestion 117 of 223
Overhead lane signal with a yellow X on a dark square

What does this lane signal warn you about?

  1. The lane is about to close, and a red X will follow
  2. The lane just opened to traffic
  3. The lane is open for left turns from both directions
  4. The lane is for oncoming traffic only
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Correct answer: The lane is about to close, and a red X will follow

A yellow X means the lane is about to close. Move out of the lane. A red X follows.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD), 11th Edition with Revision 1 (FHWA, December 2025), Section 4T.02 Meaning of Lane-Use Control Signal Indications, page 795

Practice traffic signals

Questions last reviewed: 18 October 2026