What is the name of the distance traveled by a vehicle from the moment the driver perceives a stimulus until they respond to it?

# Reaction Distance The **reaction distance** is the space traveled by the vehicle during the time it takes the driver to perceive a hazard and react (lift the foot off the accelerator or press the brake). This distance depends on the vehicle's speed and the driver's reaction time, which is usually 0.75 to 1 second. It is important not to confuse it with the braking distance, which is the space needed to completely stop the vehicle once the brakes are applied.