In estimating following distance, which option correctly describes the method?

In estimating following distance, which option correctly describes the method?

• A. Count 2 seconds from the moment you see the vehicle ahead.
• B. Look at the speedometer and estimate.
• C. When the rear bumper of the vehicle ahead passes the object, start to count the seconds.
• D. Follow as close as you can until you see brake lights.

Answer: (C)

Establishing a safe following distance is about timing your gap. Use a fixed object on the road and count seconds as the vehicle ahead passes it. When the rear bumper of the vehicle ahead passes that object, start counting. If you reach the object again after at least two seconds, you’ve kept a safe following distance; if you reach it sooner, you’re too close. This time-based method gives a reliable cushion regardless of speed and road conditions. The other methods aren’t as reliable: starting the count after you first see the vehicle ahead can leave you closer than two seconds by the time you react; judging distance by the speedometer doesn’t reflect your actual following time; and following closely until brake lights appear is unsafe.

Establishing a safe following distance is about timing your gap. Use a fixed object on the road and count seconds as the vehicle ahead passes it. When the rear bumper of the vehicle ahead passes that object, start counting. If you reach the object again after at least two seconds, you’ve kept a safe following distance; if you reach it sooner, you’re too close. This time-based method gives a reliable cushion regardless of speed and road conditions.

The other methods aren’t as reliable: starting the count after you first see the vehicle ahead can leave you closer than two seconds by the time you react; judging distance by the speedometer doesn’t reflect your actual following time; and following closely until brake lights appear is unsafe.