How do seat belts contribute to reducing driver injuries?

Seat belts play a crucial role in reducing driver injuries primarily by preventing occupants from being thrown from the vehicle during a crash. In the event of a collision, the force experienced can be substantial, and without the restraint of a seat belt, occupants are at risk of being ejected, which significantly increases the likelihood of severe injuries or fatalities. Seat belts are designed to keep individuals securely in their seats, ensuring that they remain within the protective confines of the vehicle's structure, which is crucial in mitigating impact forces.

Moreover, by keeping the occupants properly positioned, seat belts allow the vehicle's safety features, such as airbags, to function effectively. Airbags are designed to provide additional protection in a crash, but their effectiveness can be compromised if a person is not wearing a seat belt. Hence, the primary function of seat belts as restraints is to enhance overall safety by securing occupants and reducing the risks associated with vehicle collisions.