In an emergency situation, the function of the emergency alarm box is to:

The purpose of the emergency alarm box is primarily to notify authorities in case of an emergency situation. When activated, the alarm sends a signal to the appropriate response teams who can then take the necessary actions to ensure the safety of passengers and crew, as well as address any immediate hazards or concerns on the train or track. This communication is crucial for prompt response and management of emergencies, which can vary from medical issues to mechanical failures or external threats.

The other functions listed, such as activating train brakes, removing signaling capability, or shutting down the track, are typically managed by specific operational protocols and systems that help maintain safety and operational integrity. However, the core function of the emergency alarm box revolves around alerting and coordinating with the proper authorities to handle the situation effectively. This underscores the importance of communication and timely response in emergency protocols for train operations.