Trusted Local Auto

U.S. Road Signs

Warning, Construction & Information Signs

You see this sign beside the road. What does the number on it tell you?

A black square sign with rounded corners and a large white circle that contains the black number 18.
  1. AThe number is the exit number of the next exit.
  2. BThe number is the distance in miles to the next town.
  3. CThe number is the route number of this highway.
  4. DThe number is the mile marker for this point on the road.
Show the answer and the explanation

Correct answer: C. The number is the route number of this highway.

Why

This is a state route sign. The number names the highway route you are on. It is not a speed, a distance, an exit number or a mile marker. This picture shows the basic design in the national manual, but each state designs its own route sign, so the look changes from state to state. A U.S. route sign has a white shield on black, and an Interstate sign has a red, white and blue shield. A speed limit sign has the words SPEED LIMIT.

Why the other answers are not correct

  • A. Wrong: exit numbers are shown on green exit signs and plaques, not on a route sign.
  • B. Wrong: distances are shown on green guide signs with place names and miles.
  • D. Wrong: mile points are shown on small green reference location signs.

Verified against Manual on Uniform Traffic Control Devices for Streets and Highways, 11th Edition with Revision 1 · Section 2D.11 Design of Route Signs · p. 257, 258, 259

Practice this sign with the other questions of your state permit test.

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