What action must a train operator take if the automatic stop arm of a home signal does not go down after operating the lever or button twice?

In situations where the automatic stop arm of a home signal fails to activate after repeated attempts to operate it, the appropriate action for a train operator is to call and receive orders from the Control Center Desk Superintendent. This response is crucial because it ensures that the operator communicates the issue effectively and receives guidance on how to proceed safely. The Control Center oversees train movements and safety protocols, so they are equipped to provide specific instructions based on the overall status of the railway system and any potential hazards.

This action prioritizes safety and effective management of the railway network, allowing for a coordinated response to the malfunction. The operator is not in a position to assess the conditions that the Control Center can from a broader perspective.

While contacting the nearest station might seem plausible, it does not ensure direct assistance or instructions related specifically to the malfunctioning signal. Proceeding with caution until the signal changes could lead to dangerous situations if the signal has failed for a significant reason. Waiting for a maintenance crew, although it might eventually be necessary, does not address the immediate need for safe train operation and could result in unnecessary delays or risks on the railway.