Safety margins
Why do stopping distances at least double in wet weather?
- Your tyres have less grip on the roadCorrect
- Your engine produces less power
- Your mirrors become harder to see
- Your brakes stop working in the rain
Why?
Rule 227 of The Highway Code explains that in wet weather stopping distances are at least double those on a dry road because the tyres have less grip. That is why you should keep well back from the vehicle in front.
Highway Code rule 227