What action must be taken during an emergency evacuation regarding communication?

During an emergency evacuation, remaining silent until called to report is essential to avoid overloading communication channels. This approach helps to ensure that critical information can be communicated effectively without interference from multiple voices trying to speak at once. While it may seem counterintuitive, in high-stress situations, unnecessary chatter can hinder rather than help the flow of important communications.

The need to keep communication lines clear allows command staff to coordinate the evacuation more efficiently and respond to any emergencies that may arise during the process. This strategy allows them to reach those involved in the evacuation and address their needs or any issues that might come up. It supports an organized flow of information and ensures that responders can be informed of the situation without confusion.

In contrast, reporting immediately or continuing normal communications could lead to congested channels, making it challenging for responders to hear critical instructions or updates from command. Similarly, alerting personnel might divert attention from the immediate necessity of evacuating safely, rather than focusing on clear and direct communication as needed.