What action must a signal person take if another worker enters the lift area?

When another worker enters the lift area, the signal person's primary responsibility is to ensure safety in the work environment, particularly in areas where heavy equipment is operated. Immediate action is necessary to prevent potential accidents or injuries. Therefore, the correct response involves alerting the worker to the presence of danger and informing the crane operator if the situation requires it. This proactive approach helps maintain a secure working environment and ensures that everyone is aware of hazards in real-time.

By alerting the worker who has entered the lift area, the signal person maximizes the chances of avoiding accidents. Additionally, notifying the crane operator is crucial, as it allows them to pause operations or take precautions to protect all workers in the vicinity. This response demonstrates a commitment to safety and emphasizes the importance of communication on the worksite.