The driver’s reaction distance is the distance covered by the vehicle:
- From the moment the driver steps on the brake pedal until the vehicle makes a complete stop.
- Correct answer: From the moment the driver identifies the danger ahead until the moment he begins to react to the danger.
- From the initial reaction until the end of the vehicle’s braking.
- From the moment the driver identifies the risk ahead until the vehicle makes a complete stop.
Why this is the answer
The correct answer in the official bank: From the moment the driver identifies the danger ahead until the moment he begins to react to the danger.
Reaction distance is how far the vehicle travels from the moment the driver notices the danger until he starts to act, for example by moving his foot to the brake. During this time the vehicle keeps going at full speed. The distance from the start of braking until the stop is the braking distance, and both together make up the stopping distance. Fatigue, distraction, alcohol and higher speed all lengthen it.