The reason traffic accidents increase during snowy icy or foggy conditions is that

There is an increase of traffic accidents during snow and foggy conditions because the blowing snow and fog makes the visibility of the road to drivers hard. Also weather like these can affect the vehicles performance like its stability. During snow, the control of the driver to the road is very hard because the road is very slippery especially when driving. Speed limit should also be a factor because drivers can be at risk if he will be driving fast on these days.

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