Which of the following is NOT considered a motor vehicle crash?

A train striking a pedestrian is not classified as a motor vehicle crash because a train operates on rails and is considered a different category of transportation compared to motor vehicles, which typically include cars, trucks, motorcycles, and bicycles. The definition of a motor vehicle crash generally pertains to incidents involving vehicles that are designed primarily for road use. In contrast, the other scenarios presented—all involve road vehicles colliding with one another or with stationary objects, fitting the criteria of motor vehicle crashes. Therefore, the circumstance involving a train does not align with the conventional definitions used in traffic code contexts.