When there is ice or snow on the road
When there is ice or snow on the road
When you got bad conditions like regular tyres on an icy road, or bald tyres on a wet road.
Snow
It all depends on road or terrain conditions, weather, the outside temperature, and the size and weight of the vehicle.
On ice.
wet ICE
At or near freezing.
On ice with narrow wheels
...Vehicle is suspended in mid-air.
poor traction
Friction between the tire rubber and the road give traction.