When exiting a highway, when should you start to slow down?

• A. Before entering the exit lane
• B. Once you are in the exit lane
• C. After you have exited
• D. Immediately when you see the exit sign

Answer: (B)

When exiting a highway, the correct moment to start slowing down is once you are in the exit lane. This approach is important because the exit lane is designed specifically for transitioning off the highway, allowing drivers to safely decelerate without disrupting the flow of traffic on the highway itself.

By waiting until you are in the exit lane to reduce your speed, you maintain a safe speed on the highway until you have clearly transitioned into a more appropriate lane for exiting. This not only helps ensure your own safety but also the safety of other drivers who are still traveling at higher speeds on the highway.

In this context, starting to slow down before entering the exit lane may cause you to brake significantly while still on the highway, which could create a sudden hazard for others driving behind you. Slowing down after you have exited would not be safe either, as it does not account for the need to reduce speed in order to navigate turns and potential merging lanes smoothly. Immediately slowing down upon seeing the exit sign could also lead to sudden deceleration, which is not ideal as you need to maintain adequate speed until you enter the exit lane.