How many rope tugs does "Advance" represent?

The term "Advance" in the context of rope signals typically signifies a command to move forward or to continue progressing in a particular direction during a rescue operation. In the specific terminology of NFPA standards, this command is represented by two tugs on the rope. The reason for using two tugs is to ensure the message is clear and distinct, allowing for effective communication in potentially chaotic environments where verbal instructions may not be heard or understood. This system enhances safety and coordination among rescuers by standardizing the signals used during operations. Understanding the meaning behind the number of tugs is crucial for successful and safe rescue practices.