What is the role of seat belts when a vehicle collides?

[LaRiley]

When a vehicle collides, the role of the seat belt is to reduce the likelihood of death or serious injury in a traffic collision by minimizing the secondary impact force that poses an internal collision risk. It ensures the occupant is properly positioned to maximize the effectiveness of the airbag and prevents the occupant from being ejected from the vehicle or experiencing rollover during a collision. A seat belt is a vehicle safety device designed to protect occupants from harmful movements caused by collisions or sudden stops. The correct way to use a seat belt is: 1. First, adjust the height of the seat belt. If it is too high, it may tighten around the neck during an emergency, and if it is too low, it may not fully restrain the body from moving forward. 2. After fastening the seat belt, it should not be too loose or too tight—approximately leaving room for two fingers—to ensure safety without causing discomfort.