What is the recommended approach to ensure safety when pulling carts or dollies?

Keeping carts or dollies within the safety envelope is the recommended approach because it ensures that operators maintain a safe working environment. The safety envelope refers to the designated area around the vehicle or equipment that should be kept clear of obstructions and personnel. By adhering to this principle, you minimize the risk of collisions or accidents, as it helps ensure that you are aware of the space that surrounds you while pulling these loads.

Maintaining this safety perimeter also allows for better maneuverability and visibility, which are crucial when handling heavy or cumbersome equipment like carts and dollies. This practice is essential in a busy airport environment where many other workers and vehicles are present, thereby enhancing overall safety for everyone on the ground.

While the other approaches—looking behind, having a spotter, and limiting the number of carts or dollies—can also contribute to safety, they do not encompass the holistic approach that keeping loads within the safety envelope represents. This method emphasizes spatial awareness and situational control, which are vital for preventing accidents in aviation ground services.