SACRAMENTO - Driving on a cold, frosty day can be dangerous because of a culprit called "black ice."
Black ice is a term given to a thin layer of ice on the roadway. Because the layer of ice is transparent, this allows the color of the asphalt to show giving the ice a black appearance. Hence the term "black ice."
There is no difference between ice and black ice. Black ice forms on a road when drizzle or light rain falls and the temperatures is below freezing. Because the ice is transparent, you can't see it until it is too late. A car loses traction when the tires hit the ice, sometime causing the driver to lose control.
Bridges and shady areas are prone to black ice.
There is no full-proof way to prevent accidents caused by black ice, but you can slow down when approaching intersections and off-ramps especially when conditions are prime for black ice forming.