Final answer:
The three-second rule is a guideline used by drivers to determine a safe following distance, allowing for a safe braking distance and minimizing the risk of a rear-end collision.
Step-by-step explanation:
The three-second rule is a guideline used by drivers to determine a safe following distance. It suggests that you should maintain a distance from the vehicle in front of you that allows you to count at least three seconds before reaching the same point. This rule helps to ensure that you have enough time and space to react and stop safely in case of an emergency.
For example, if the car in front of you passes a fixed object, such as a sign, it should take you at least three seconds to reach that same object. This allows for a safe braking distance and helps minimize the risk of a rear-end collision.
Therefore, the statement is true. The three-second rule is a helpful tool for drivers to determine a safe following distance.