What is the purpose of the "three-second rule"?

The "three-second rule" is designed to help drivers maintain a safe following distance from the vehicle ahead. This rule suggests that you should ideally stay at least three seconds behind the vehicle in front of you, allowing enough time to react if the vehicle suddenly slows down or stops. By counting seconds as the vehicle ahead passes a fixed point, such as a sign or a tree, drivers can ensure they are keeping a proper distance to avoid collisions. This rule is particularly important in conditions where stopping suddenly could be dangerous, as it gives you the space needed to brake safely without risk of rear-ending the vehicle in front of you. Maintaining this distance enhances overall road safety for everyone.