Stopping distance and reaction times Flashcards
What is the stopping distance of a vehicle?
The distance covered between the driver first spotting a hazard and the vehicle coming to a complete stop.
Stopping distance =
Thinking distance + Braking distance
The longer it takes a car to stop after seeing a hazard…
the higher the risk of crashing.
What are the 2 main factors thinking distance is affected by?
Your reaction time - increased by tiredness, alcohol, drugs, and distractions.
Your speed - the faster you’re going, the further you’ll travel during your reaction time.
What is the braking distance?
The distance taken to stop once the brakes have been applied.
How does speed affect braking distance?
The faster you’re going, the longer it takes to stop.
How does the mass of the car affect braking distance?
A car full of people and luggage won’t stop as quickly as an empty car.
How does the condition of brakes affect braking distance?
Worn or faulty brakes won’t be able to break with as much force.
How does the amount of friction between your tyres and the road affect braking distance?
You’re more likely to skid if the road is dirty, if it’s icy or wet or if the tyres are bald.
