When exiting a highway, you should slow down:

1. On the main road, just before the exit lane.
2. Once you see a toll booth.
3. Once you have moved into the exit lane. ✓
4. When you first see the exit sign.

Answer: C. Once you have moved into the exit lane.

When leaving a limited access highway, slow down after you have moved into the exit lane, using the deceleration lane to reduce speed.

Why this is the answer

The handbook lists the steps for leaving a limited access highway in order: get into the exit lane, signal, then slow down in the deceleration lane, and check the posted safe speed for the ramp. Slowing only after you are in the exit lane keeps you at highway speed while you are still among traffic that is not exiting, and the deceleration lane gives you a place to reduce speed for the ramp. The handbook also warns against last-minute turns into an exit.

Why the other answers are wrong

• A. On the main road, just before the exit lane. — Slowing on the main road before the exit lane means braking in the through-traffic lane, while the handbook puts slowing down after you are in the exit lane.
• B. Once you see a toll booth. — The handbook never ties slowing for an exit to a toll booth; it tells you to slow down in the deceleration lane.
• D. When you first see the exit sign. — Seeing the exit sign is the time to get into the exit lane and signal, not the point where the handbook says to slow down.

Remember it

Signal and get into the exit lane first, then let off the gas and slow in the deceleration lane.