Why is it important to keep a distance when driving next to a tractor-trailer?

Keeping a safe distance when driving next to a tractor-trailer is crucial primarily because of the significant blind spots that these large vehicles have. Tractor-trailers have larger blind spots than most passenger vehicles, making it difficult for the driver to see vehicles that are directly alongside or behind them. By maintaining a safe distance, you allow yourself more visibility and time to react in case the tractor-trailer makes sudden maneuvers or stops.

This awareness of blind spots reduces the likelihood of collisions, especially during turns or lane changes where the truck driver might not see you. Additionally, the distance provides a buffer zone that enhances safety if the truck were to brake suddenly or if road conditions change unexpectedly.

While factors such as the size of the truck, its speed, and the visibility of the driver may seem important in considering distance, the primary concern in this situation is the risks associated with the truck's blind spots and the need for safe driving practices around larger vehicles.