If a signal person cannot see the crane operator, what should they do?

When a signal person cannot see the crane operator, using a radio or relaying signals through another person is the most effective and safest method of communication. Effective communication is crucial in crane operations to prevent accidents and ensure the safety of all personnel involved. Radios are designed to provide clear and reliable communication over distances, making it easier for the signal person to accurately convey instructions to the operator without the risk of misinterpretation that can occur from shouting or using visual signals when sight lines are obstructed.

Choosing to continue signaling as usual would risk a breakdown in safe operations, as the operator might not be able to see the signals being given. Shouting can lead to misunderstandings due to noise or distance and is generally not a reliable means of communication on worksites. Stopping all crane operations immediately could unnecessarily halt work and is not a practical solution unless there is an immediate safety concern. Therefore, utilizing radios or relaying messages through another person ensures that communication remains clear and operational safety is prioritized.