Warning, Construction & Information Signs
This red, white and blue shield shows a white number on a blue field. What does it tell you?
- AIt marks an Interstate route with that route number
- BIt marks a U.S. numbered highway with that number
- CThe number is the speed limit on this road, in mph
- DThe number is the next exit number on this road
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Correct answer: A. It marks an Interstate route with that route number
Why
This shield marks an Interstate route. Each numbered highway system has its own sign shape and colors, and the number identifies the route, so use it to follow your trip plan. A U.S. route sign looks different: black numbers on a white shield. The number on a route shield is not a speed limit or an exit number.
Why the other answers are not correct
- B. Wrong: U.S. routes use a different sign, with black numbers on a white shield.
- C. Wrong: a speed limit is shown on a white rectangular Speed Limit sign, not on a route shield.
- D. Wrong: exit numbers appear on exit plaques and guide signs; the number on this shield identifies the route.
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
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