Stopping distance is made up of 2 parts: Thinking Distance and Braking Distance
Many learners are caught out during the test, because they aren’t aware of the difference!
What is thinking distance?
Thinking distance is the distance that the car travels after the driver has seen the danger and before the brakes are applied.
Some peoples reactions are faster than others, but the average distance it takes before the driver realises the danger ahead is 20 feet, when travelling at 20 mph.
What is braking distance?
The distance that the car travels whilst braking. With the brakes applied the car slows down, and the average car will travel 20 feet before coming to a complete stop, when travelling at 20 mph.
The Overall Stopping Distance is a combination of the 2 above.
NB: These facts and figures are for a driver who is alert and well rested, in good health and not impaired by alcohol or medication. Weather and road conditions, as well as type of vehicle and weight of load being carried can also affect these stopping distances.