What is the minimum following distance recommended behind large vehicles?

The minimum following distance of 4 seconds behind large vehicles is recommended for several crucial reasons. Large vehicles, such as buses and trucks, have significantly longer stopping distances compared to smaller cars due to their weight and size. By maintaining a following distance of 4 seconds, drivers can better react to sudden stops or emergencies, thus reducing the risk of collisions.

This distance also allows for better visibility, as being too close to a large vehicle can limit your ability to see ahead of it. At a distance of 4 seconds, you can see around the vehicle, which helps in anticipating and avoiding potential hazards on the road. Additionally, this following distance provides a safety buffer that accommodates various factors such as road conditions and weather, further enhancing driving safety.

In contrast, shorter following distances, such as 2 seconds or 3 seconds, may not provide ample time to react in situations that could arise suddenly in front of the large vehicle.