Hazard and Risk Perception
How do stopping distances change on a wet road compared to a dry road?
- ○They stay the same if you have good tyres
- ✓They roughly double
- ○They reduce slightly due to tyre cooling
- ○They increase by about 25%
Correct answer
They roughly double
Water reduces tyre grip significantly. Overall stopping distances (thinking distance plus braking distance) approximately double on a wet road compared to a dry one.
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