According to the NTSB study, what causes the majority of fatalities in major crashes?

The majority of fatalities in major crashes are attributed to impact. This conclusion is supported by data indicating that the forces exerted during the collision significantly contribute to the severity of injuries sustained by occupants. When vehicles collide at high speeds, the sudden deceleration can result in severe trauma to vital organs, leading to fatal outcomes.

The NTSB study focuses on the mechanics of crashes and how they interplay with passenger safety systems, vehicle design, and the physics of impact forces. Research shows that even with safety measures in place, the impact can exceed what the body can withstand, resulting in critical injuries.

Understanding this principle is crucial for developing strategies to mitigate crash severity and improve vehicle safety features to protect occupants from the dangers associated with collisions, reinforcing the emphasis on the importance of improving crashworthiness and passenger restraint systems.