What aspect of environmental conditions should riggers be aware of?

Riggers need to be particularly aware of visibility and control during lifting because these factors are crucial for ensuring a safe and effective rigging operation. Good visibility allows riggers to see all aspects of the lift, including the load, any obstacles, and the surrounding work area. This awareness helps in making informed decisions about the lift and responding promptly to any issues that may arise.

Control during lifting is equally important, as maintaining control over the load ensures it remains stable and is moved safely to its destination. Inadequate visibility or lack of control can lead to accidents, such as dropping the load or colliding with obstacles or personnel in the area. Therefore, understanding and assessing environmental conditions related to visibility and control is essential for effective rigging practices.

While factors such as temperature changes, humidity levels, and noise levels can affect the work environment to a degree, they do not have the immediate impact on safety and operational effectiveness during lifting tasks that visibility and control do.