Texas Defensive Driving Written Practice Test

The "two-second rule" is a guideline used to help drivers maintain a safe following distance from the vehicle in front of them. This rule suggests that a driver should stay at least two seconds behind the vehicle ahead to allow enough time to react in case of sudden stops or emergencies. The two seconds refers to the amount of time it takes for a driver to cover that distance, providing an opportunity to avoid collisions. This rule is vital for safe driving, as it gives drivers the space they need to stop safely if the vehicle in front of them slows down or comes to a halt. In the context of the other choices, the time it takes to change lanes, the speed limit for residential areas, and the delay in traffic signals do not pertain to maintaining a safe following distance. While each of these factors is important for safe driving, they do not directly relate to the concept of the two-second rule, which is specifically about distance and timing in relation to other vehicles on the road.