The manual tells you to signal in advance before leaving the interstate. What does it say about your speed as you enter the deceleration lane?
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A.
Slow to the exit's posted speed before you enter the deceleration lane.
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B.
Enter the deceleration lane without slowing down. Correct
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C.
Slow to about half of the current traffic speed before entering it.
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D.
Match the speed of the vehicle immediately behind you.
The answer is "Enter the deceleration lane without slowing down."
The manual says to signal in advance and, without slowing down, enter the deceleration lane. The slowing happens inside the deceleration lane itself, at the posted exit speed. Trap: option A. The reflex to lift off the gas the moment an exit sign appears feels right, but braking while still in the travel lane is where rear-end crashes on exit ramps come from.
The traps in the wrong answers
A. Slow to the exit's posted speed before you enter the deceleration lane.
Slowing while still in the travel lane is what the deceleration lane exists to prevent, and the manual rules it out. This answer reads the posted exit speed as a travel-lane target rather than a speed to reach once inside the deceleration lane.
C. Slow to about half of the current traffic speed before entering it.
No fraction of surrounding traffic speed is in the manual, which treats the deceleration lane itself as the place where speed drops. This answer invents a halfway-speed figure the manual never gives, on the hunch that slowing in stages must be safer.
D. Match the speed of the vehicle immediately behind you.
The speed of the vehicle behind you does not control your exit; the deceleration lane does. This answer watches the car behind as if other drivers set the exit speed, instead of using the lane the manual provides for slowing.
This question tests your knowledge of Lane Changes & Merging in North Carolina. Source: North Carolina Driver Handbook, "Interstate Highways," p.64..
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