The reaction distance is the distance covered by the vehicle:
- From the moment the driver eases off his step on the accelerator until the vehicle stops.
- Correct answer: From the moment the driver notices the danger until he starts to apply the action he decided to take.
- From the moment the driver steps on the brakes until the vehicle stops.
- From the moment the driver notices the danger until the vehicle makes a complete stop.
Why this is the answer
The correct answer in the official bank: From the moment the driver notices the danger until he starts to apply the action he decided to take.
Reaction distance is the ground the vehicle covers while the driver notices the danger, decides what to do and begins doing it, for example moving to the brake pedal. During this time the vehicle keeps going at full speed. The distance from applying the brakes until stopping is the braking distance, and both together make up the total stopping distance. Fatigue, distraction and higher speed all lengthen reaction distance.