For those drivers who were not wearing safety belts at the time of their deaths, safety belts could have prevented death in about of these unbelted situations.

For those drivers who were not wearing safety belts at the time of their deaths, safety belts could have prevented death in about one-quarter of these unbelted situations.

According to traffic statistics, 1/4 of the death that happened after accident actually caused by an impact from the trajectory the collision of driver's head to the steering wheel/windshield, which could be prevented by wearing a seatbelt