Railroad crossingsQuestion 198 of 223
Yellow circle with a black X and the black letters R R

What does this round yellow sign tell you?

  1. A traffic circle is ahead.
  2. A railroad crossing is closed.
  3. A railroad crossing is ahead.
  4. A road crosses a bridge ahead.
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Correct answer: A railroad crossing is ahead.

The round yellow sign with an X and the letters RR is the advance warning for a railroad crossing. Slow down and look for trains.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD), 11th Edition with Revision 1 (FHWA, December 2025), Section 8B.06 Grade Crossing Advance Warning Signs (W10-1 through W10-4), page 1042

Practice railroad crossings

Questions last reviewed: 18 October 2026