Which pattern consists of three half-second tones used for evacuation signals?

The correct answer is the Temporal 3 Pattern. This pattern consists of three half-second tones, which is specifically designed to serve as an evacuation signal in various systems, such as fire alarms and public warning systems. The distinct sequence of tones is strategically utilized to capture attention quickly and convey the urgency of evacuation, ensuring that individuals recognize the need to leave the area without delay.

This pattern's duration and frequency are crafted to create a clear, recognizable sound that differentiates it from other signals, making it an effective alert for emergencies. As a result, the Temporal 3 Pattern is widely adopted in safety protocols to enhance situational awareness and prompt immediate action among the public or occupants of a building.