You should never cut into the open space between a truck and the curb if the driver has signaled to turn because __________

The reasoning behind this answer lies in the unique handling characteristics of large trucks. Unlike smaller vehicles, large trucks have a wider turning radius. When a truck is preparing to turn, it often swings out to the left before completing the turn to the right. This movement allows the truck to clear the curb and navigate the turn safely without hitting objects or pedestrians.

If a driver cuts into the open space between a truck and the curb while the truck driver has signaled to turn, they may place themselves in significant danger. The truck may begin its turn, which can result in a collision if the driver is occupying that space. Recognizing the turning mechanics of trucks is critical for maintaining safety on the road. It is essential to wait until the truck completes its turn before attempting to maneuver around it, thereby ensuring that the path is clear and safe for all vehicles involved.