What does a space cushion refer to?

A space cushion refers to the safe distance maintained between your vehicle and the vehicle ahead of you. This practice is essential for driving safety, as it allows for adequate stopping distance and provides a buffer zone that helps prevent collisions. When you have a proper space cushion, you have more time to react to sudden stops or emergencies that may occur in front of you. Maintaining this distance is part of defensive driving techniques, which emphasize being aware of your surroundings and anticipating potential hazards.

The other options do not relate to the concept of a space cushion in driving. Fuel levels, passenger counts, and speed limits are important factors in vehicle operation but do not pertain to the safe spacing between vehicles.