What is the recommended distance to maintain when following another vehicle?

Maintaining a following distance of three seconds is regarded as a safe practice when driving behind another vehicle. This time-based measure accounts for various factors that can affect stopping distances, such as speed, road conditions, and weather. The three-second rule allows drivers to have adequate reaction time if the vehicle in front of them suddenly stops or slows down.

To apply this rule, a driver should choose a stationary object, like a sign or a tree, and note when the vehicle in front passes it. By counting to three (one thousand one, one thousand two, one thousand three) before reaching the same object, the driver can ensure they are maintaining a safe distance. This distance can help prevent rear-end collisions, which are common if drivers follow too closely. Using a time-based method rather than a fixed physical distance is especially effective because it adjusts according to speed and conditions, providing greater safety measures.