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

The "two-second" rule is designed to ensure adequate following distance between vehicles on the road. This rule suggests that a driver should maintain a distance that allows them to recognize and react to potential hazards. The concept is based on the idea that a vehicle should pass a fixed point, such as a sign or tree, no sooner than two seconds after the vehicle in front of it passes that same point.

This two-second gap provides a buffer of time in which a driver can react to sudden stops or emergencies, helping to prevent rear-end collisions. The formula takes into account factors such as perception and reaction times, which can vary based on speed, weather, and road conditions. Following this rule allows for greater safety and can reduce the risk of accidents, making it an essential practice for responsible driving.