United States Permit Test Coach
Railroad crossingsQuestion 210 of 223

What color are the bar-shaped signal indications for light rail vehicles?

  1. White
  2. Red
  3. Green
  4. Yellow
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Correct answer: White

Light rail vehicles can have their own signals. These signals are white, not red, yellow or green like signals for road traffic.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD), 11th Edition with Revision 1 (FHWA, December 2025), Section 8D.15 Use of LRT Signals for Control of LRT Vehicles at Highway-LRT Grade Crossings, page 1075

Practice railroad crossings

Questions last reviewed: 18 October 2026