United States Permit Test Coach
Warning signsQuestion 47 of 223
Yellow diamond with a straight black arrow and a curved line that joins it from the lower right

What does this sign warn of?

  1. Your lane will end ahead
  2. Traffic will leave your road ahead
  3. Traffic from another road will join your road ahead
  4. Two roads will cross ahead
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Correct answer: Traffic from another road will join your road ahead

A Merge sign shows a side road that joins the main road. The curved line shows the side from which traffic joins. Let the entering vehicles in when you can.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD), 11th Edition with Revision 1 (FHWA, December 2025), Section 2C.45 Merge Signs and Plaque (W4-1, W4-5, and W4-5aP), page 223

Practice warning signs

Questions last reviewed: 18 October 2026