What is the purpose of using two signal persons in a large operation?

Using two signal persons in a large operation serves the essential purpose of ensuring comprehensive coverage and enhancing communication throughout the worksite. In complex lifting operations, visibility can be limited for both the crane operator and the signal persons, especially when the operation involves multiple movements or obstacles. By having two signal persons present, each can monitor different aspects of the operation, providing better situational awareness.

This dual approach helps to ensure that all parts of the operation are clearly communicated and that any potential hazards are observed from multiple perspectives. Effective communication between the signal persons and the crane operator minimizes the risk of accidents, as each person's signals can reinforce one another, leading to clearer instructions and a more coordinated effort. Ultimately, this enhances the overall safety and efficiency of the lifting operation.