An unstable situation that includes at least one harmful event (injury or property damage) involving a motor vehicle in transport (in motion, in readiness for motion or on a roadway but not parked in a designated parking area) that does not result from a discharge of a firearm or explosive device and does not directly result from a cataclysm. [see Committee on Motor Vehicle Traffic Accident Classification. (1997). Manual on Classification of Motor Vehicle Traffic Accidents, ANSI D16.1-1996. Itasca IL: National Safety Council.]