header bg
8 arrow_forward 0 done arrow_forward 0 done_all

Perception distance is the distance that your vehicle travels

A from when your eyes see a hazard to when your brain recognizes the hazard.
Explaination
It takes time for your brain to process information. Your perception time is the time that elapses from when your eyes see a hazard to when your brain recognizes it as a hazard that requires you to act. Your perception time can be as much as 3/4 of a second. Your perception distance is the distance that your vehicle will travel in that time. At 55 mph, your vehicle will travel 61 feet in 3/4 of a second before you may even recognize the need to react to the hazard.
B from when you apply the brakes to when your vehicle comes to a stop.
C from when your eyes see a hazard to when your vehicle comes to a stop.
D from when your eyes see a hazard to when you apply the brakes.