You drive east on an interstate and plan to leave at Exit 40. You see this green sign. A tab on its top reads EXIT 40, the middle names a route and a town, and the bottom line reads 1 MILE. What does the sign tell you?

Correct answer: Exit 40 is about 1 mile ahead, so you have time to move into the exit lane.

Why

On interstates, the first guide sign for an interchange stands well before the point where you leave the road. It can show the exit number, the route, the place or attraction that the exit serves, and the distance to the exit. Use this early notice to signal and move into the exit lane calmly, because a lane change at the last moment can make you miss the exit or cause a crash. At the exit itself, another green sign with the exit number shows where the ramp leaves.

Verified against West Virginia Driver's Licensing Handbook · Guide Signs · p. 48, 67