What is the proper following distance behind a vehicle in good weather conditions?

The proper following distance behind a vehicle in good weather conditions is measured in seconds, specifically a three-second rule. This guideline allows drivers enough time to react to sudden changes in traffic or road conditions. By maintaining a three-second gap, a driver can better assess the speed and position of the vehicle ahead, ensuring a safer driving environment.

To gauge this distance, a driver can pick a fixed point on the road, such as a sign or a tree, and count the seconds it takes for the vehicle in front to reach that point. If a driver counts to three before reaching the same point, this indicates that they are maintaining a safe following distance.

Other measures like car lengths may not effectively account for varying speeds and stopping distances. The three-second rule offers a more dynamic and adaptable standard for a variety of driving situations, making it the most reliable method for ensuring adequate following distance in good weather conditions.