Which of the following is NOT one of the five crash types?

The five recognized crash types are frontal, rollover, lateral, rear impact, and rotation. Frontal crashes occur when the front of a vehicle collides with another object, making them a common and well-understood crash type. Rollover crashes involve a vehicle turning over onto its side or roof, presenting significant risks to occupants due to the geometry of the vehicle and the forces involved. Lateral crashes, often referred to as side-impact collisions, occur when one vehicle strikes another from the side, which can be particularly dangerous for passengers seated next to the point of impact.

In contrast, vertical crashes are not categorized as one of the main crash types in the context of child passenger safety and vehicle collisions. This term typically does not represent a specific crash scenario and is therefore not included in the standard classification of collision types. This distinction is crucial for understanding vehicle safety dynamics and how best to protect child passengers in various crash scenarios.