What function do dollies for ULD perform in the airport operations?

Dollies for Unit Load Devices (ULD) play a crucial role in airport operations by facilitating the transport of loads that are often stored in containers and on pallets between various points within the airport. Their design and functionality enable ground crews to move these heavy loads efficiently, which is essential for timely loading and unloading of cargo from aircraft.

When managing the logistics of air freight, it’s vital that cargo is moved swiftly and safely from storage areas to aircraft and vice versa. Dollies minimize the physical strain on workers and reduce the potential for damage to luggage or freight during transit. This streamlined process is important for overall airport efficiency and maintaining tight schedules in cargo operations.

The other functions listed, such as maintenance, navigation, and refueling, do not pertain to the primary purpose of dollies, which is specifically focused on the transport of ULDs, marking option B as the correct choice.