What factor must tiller operators be particularly aware of while operating an aerial apparatus?

Tiller operators must be particularly aware of proper overhead clearance while operating an aerial apparatus because their role involves maneuvering the vehicle in tight and potentially hazardous environments, often beneath overhead structures such as bridges, power lines, and trees. Ensuring there is sufficient clearance is crucial to prevent accidents, injuries, or damage to the apparatus. This awareness protects not only the vehicle but also the crew members and any civilians in the vicinity.

Proper overhead clearance is essential for maintaining safe operations and achieving the effective deployment of the aerial device. If the clearance is not sufficient, it can lead to collisions with overhead obstacles that could cause the apparatus to be immobilized or result in serious accidents. Thus, understanding the height and operational limitations of the aerial apparatus is critical for the safety of the entire operation.