When following the 3-Second Rule, what should you do when the rear of the vehicle ahead passes a fixed checkpoint?

When following the 3-Second Rule, the correct action to take when the rear of the vehicle ahead passes a fixed checkpoint is to begin counting until your vehicle reaches that checkpoint. This method helps ensure that you maintain a safe following distance of at least three seconds behind the vehicle in front of you.

By counting the seconds as you approach the same checkpoint, you can gauge whether you are at a safe distance from the vehicle ahead. If you find that you reach the checkpoint in less than three seconds, this indicates that you are following too closely. Maintaining this safe distance is crucial for providing enough time to react to any sudden stops or emergencies, thus enhancing overall road safety.

This method encourages drivers to be mindful and attentive rather than making abrupt changes like speeding up, reducing speed significantly, or changing lanes, which could create further challenges and hazards on the road.