What feature enhances safety in freight elevators?

The feature that enhances safety in freight elevators is the hoistway door to sill distance. This distance plays a crucial role in preventing accidents during loading and unloading operations. By ensuring an adequate distance between the hoistway door and the elevator sill, it minimizes the risk of misalignment, which can lead to workers or cargo falling during the transit of the elevator. A well-designed hoistway door system helps ensure that the elevator can only be accessed when it is properly aligned with the floor, thereby significantly enhancing operational safety.

Maintaining a safe distance also helps protect against situations where cargo could potentially roll out of the elevator if the door is not completely aligned. Overall, the hoistway door to sill distance is a critical safety measure in the design and operation of freight elevators, emphasizing the importance of preventing accidents in environments where heavy loads are frequently moved.