How closely is it safe to follow another car?

Following another car closely is generally unsafe due to the potential for sudden stops and the reduced reaction time available to avoid collisions. A safe following distance is crucial to allow enough time to react to the actions of the vehicle in front. The commonly recommended distance is at least one car length for every 10 mph of speed, which helps ensure that there is adequate space to brake or maneuver if necessary.

When following too closely, a driver faces an increased risk of a rear-end collision, especially in conditions where traffic can stop suddenly. This is why maintaining a safe following distance is a key component of defensive driving practices, ensuring that drivers have enough time to perceive and react to potential hazards on the road.