Final answer:
A traffic collision involves a motor vehicle striking another entity, leading to potential damage and it is influenced by factors detailed in collision theory.
Step-by-step explanation:
A traffic collision is when a motor vehicle hits another motor vehicle, a pedestrian, an animal, a bicyclist, or a fixed object. This scenario can lead to vehicle damage and potential injuries, which can become very costly, particularly if the responsible driver lacks car insurance.
Furthermore, collision theory explains the physics behind such events, where momentum and energy transfer during the incident dictate the outcome, such as in the case of a small car colliding with a truck at an intersection.