Traffic Safety
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How do fallen autumn leaves affect road grip when they lie wet on the roadway?
Wet leaves can become very slippery and significantly impair road grip
Leaves give increased grip because they are soft
Leaves do not affect road grip significantly
Explanation
Wet autumn leaves on the road can be as slippery as ice. Therefore, you should be careful if there are many leaves on a wet road – the risk of slipperiness increases.
Source: Körkortsboken
Last reviewed: May 2026
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