Stopping distances

• What is stopping distance?

  Total distance a car travels from the moment the driver first notices obstruction to when the car stops
• Two components of stopping distance?

  Thinking distance + braking distance
• Thinking distance?

  Distance a car travels between the point a driver spots danger and the point they apply the brakes
• Braking distance


  Distance a car travels between the point a driver applies the brakes and the point the car stops moving
• What does a drivers reaction time affect?

  Thinking distance
• 3 factors that affect a drivers reaction time

  Tiredness

  Drugs

  Distractions
• What factor affects thinking and braking distance

  The speed of the vehicles
• 5 factors that affect braking distance

  Quality of brakes

  Quality of tyres

  Road surface

  Speed of vehicle

  Mass of vehicle
• What happens if a vehicle drives twice as fast?

  Braking distance increases by four times