United States Permit Test Coach
Guide and service signsQuestion 78 of 223
Tall green sign with a white border and the white words MILE 42

What does the number on a green mile marker show?

  1. The speed limit for the next mile
  2. The number of the next exit ramp
  3. A whole-mile distance point along the highway
  4. The distance to the next rest area
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Correct answer: A whole-mile distance point along the highway

A Reference Location sign shows a whole-mile distance point along the highway. Drivers use it to see their progress.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD), 11th Edition with Revision 1 (FHWA, December 2025), Section 2H.11 Reference Location Signs (D10-1 through D10-3) and Intermediate Reference, page 507

Practice guide and service signs

Questions last reviewed: 18 October 2026