Tennessee Permit Practice Test

When preparing to exit an expressway, when should you start reducing speed?

1. About halfway through the deceleration lane

2. As you approach the deceleration lane

3. Immediately upon entering the deceleration lane

4. After exiting the deceleration lane

The correct answer is: Immediately upon entering the deceleration lane

When preparing to exit an expressway, you should start reducing your speed immediately upon entering the deceleration lane. This is the correct answer because reducing your speed early allows for a smooth and safe transition from the higher speed of the expressway to the lower speed required for exiting the highway. By slowing down as soon as you enter the deceleration lane, you have ample time to adjust your speed, check for other vehicles, and navigate the exit safely. It helps in maintaining a safe following distance from other vehicles and prevents sudden braking or last-minute maneuvers that can lead to accidents. Option A is incorrect because waiting until halfway through the deceleration lane could result in having to brake suddenly, creating a hazard for vehicles behind you. Option B is incorrect because waiting until you approach the deceleration lane is too late to start reducing your speed smoothly. Option D is incorrect because waiting to reduce speed after exiting the deceleration lane is unsafe and could lead to difficulties in navigating the exit.