Final answer:
You should start to slow down when leaving a divided highway as you approach the exit ramp, and not while still on the main lanes of the highway for safety reasons.
Step-by-step explanation:
When leaving a divided highway, it's crucial to start slowing down as you approach the exit ramp. It's unsafe and often illegal to slow down significantly while still on the main lanes of the highway, as this could cause a risk of collision with other vehicles traveling at high speeds. Instead, you should maintain your speed and only start to decelerate when you have moved entirely off the main part of the highway and onto the exit ramp. Using this approach not only ensures your safety but also the safety of others on the road.
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