A tire that is not rotating and is sliding along the roadway is referred to as what?

A tire that is not rotating and sliding along the roadway is referred to as a skid mark. This term specifically denotes the impression left on the roadway surface as a result of tire friction during a braking maneuver where the tire locks up and slides instead of rolling.

Skid marks are essential in accident investigations as they can provide important clues about the speed of the vehicle, the point of impact, and the distance traveled during the skid. The characteristics of skid marks—such as their length, width, and pattern—can help reconstruct the events leading to a collision, making them a valuable piece of evidence for law enforcement.

The other terms like gap skid, skip skid, and drag mark do not accurately describe the situation where a tire is locked and sliding. They may relate to different aspects of tire movement or the effects of friction on surfaces but are not commonly used in the context of a tire skidding on the road. Thus, skid mark is the correct and most relevant term associated with this scenario.