Stopping Distances

30mph during wet weather

Even though you were driving at 30 mph, the wet weather increased your braking distance, and you hit the pedestrian. The wet weather reduced your grip on the road, so even though you were driving at the speed limit, it was too fast for the conditions.

Thinking Distance
9m
Braking Distance
18m
Overall Stopping Distance
27m

Injury: Yes, the car hit the pedestrian.

In this scenario, around one third of pedestrians would be injured, with a risk of that injury being serious.

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 serious 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. At this speed in dry weather the vehicle would not have hit the pedestrian. Re-run the simulator, and select dry weather to see how this decreases the braking distance.

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