In the case of a fire or smoke condition, how should the horn signal be sounded?

In cases of fire or smoke conditions, the directive to sound the horn continuously at all stations is crucial for passenger safety and awareness. This serves multiple important functions: it alerts passengers and crew to the emergency situation, encourages them to evacuate or take necessary precautions, and notifies anyone in proximity to the train about a potential danger. Continuous sounding ensures maximum visibility and audibility, potentially preventing panic or confusion that might arise from a less pronounced signal.

The choice to sound the horn continuously rather than intermittently or only at specific locations acknowledges the need for a clear and constant warning that can be easily recognized by all, ensuring no one is left unaware of the fire or smoke condition. In emergencies, such clarity can be essential for an effective response, making this approach the most appropriate.