What is an appropriate distance to keep from the vehicle in front of you?

Maintaining a safe following distance is crucial for preventing collisions and ensuring adequate reaction time in various driving conditions. Two seconds under normal conditions is the recommended following distance because it allows drivers sufficient time to react to sudden stops or emergencies from the vehicle ahead. This time frame considers average stopping distance and provides a buffer that accounts for variations in speed, weather conditions, and the driver's reaction time.

For example, if the vehicle in front of you suddenly brakes, having a two-second gap gives you the opportunity to assess the situation and stop safely without rear-ending the other vehicle. This practice helps enhance overall road safety for all drivers.

The other options do not provide an adequate measure for safe following distances. One car length may be insufficient at higher speeds or in adverse conditions, while three feet is far too close, compromising safety. Five car lengths might be excessive under typical driving conditions, potentially leading to traffic flow disruptions and could be impractical in urban settings. Thus, the two-second rule is widely regarded as the best guideline for maintaining a safe following distance in normal driving conditions.