Stopping Distances

40mph during dry weather

You were driving at 40 mph, and so you hit the pedestrian. The excessive speed increased both your thinking distance and braking distance.

Even though the road was dry, and you were not distracted by a mobile phone or impaired by alcohol, you were not able to stop safely when the pedestrian stepped out unexpectedly.

Thinking Distance
12m
Braking Distance
24m
Overall Stopping Distance
36m

Injury: Yes, the car hit the pedestrian.

In this scenario, it is likely that half of the pedestrians hit would be injured, and 1 in 5 would be seriously injured or hospitalised.

Suggested Comparisons

  1. At this speed on a dry road, a driver who was using a mobile phone or who had been drinking, would hit the pedestrian and cause a more severe injury. Re-run the simulator, and select mobile phone use or drink driving to see how this changes the result.
  2. Wet weather increases braking distances. Re-run the simulator, and select wet weather, to see how much the braking distance increases, and how this changes the result.
  3. Speed has increased the braking distance and the thinking distance. You can re-run the simulator at different speeds and see the effects of speed on the stopping distance.

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