How can a driver ensure that their seatbelt is effective in an accident?

To ensure that a seatbelt is effective in an accident, it is essential for a driver to adjust it to fit snugly across the lap and shoulder. This snug fit is crucial for the seatbelt to perform its primary function, which is to restrain the occupant in the event of a collision. A properly fitted seatbelt minimizes movement and helps to distribute the forces of a crash over the stronger parts of the body, thus reducing the risk of injury.

Wearing a seatbelt loosely can decrease its effectiveness, as it may allow the occupant to move too much on impact. Limiting seatbelt use to only when driving at high speeds ignores the fact that accidents can occur at any speed, including in slow-moving traffic. Lastly, unbuckling the seatbelt for quick exits can lead to serious injury, as it removes the protective function of the belt, compromising safety during an accident when the likelihood of sudden stops or collisions is present.