What does it mean if a driver can see the rear tires of the vehicle ahead touching the ground while stopped?

Seeing the rear tires of the vehicle ahead touching the ground while stopped indicates that the driver has maintained an appropriate distance from the vehicle in front. This situation suggests a proper space cushion, which is crucial for safe driving. A space cushion provides the driver with adequate distance to react in case the vehicle ahead moves suddenly or if there is a need for quick maneuvering.

Maintaining this space is essential for preventing collisions and ensuring a safe stopping distance. It allows the driver to have a clear view of the road and the behavior of the vehicle in front, enabling them to make informed decisions. A space cushion promotes safety by giving time to react to unexpected changes on the road.