When should signals be communicated to the crew?

Communication of signals to the crew is essential for the safe and efficient operation of the train. The correct answer is that signals should be communicated as soon as they become clearly visible. This practice is rooted in safety protocols, ensuring that the crew has timely information regarding track conditions, signals, and any potential hazards ahead of them. By communicating signals as they become visible, it allows the crew to prepare and respond promptly to changing circumstances, enhancing the overall safety of the train operation.

In professional train operation, relying solely on specific situations, such as when approaching a station or only at the beginning of a shift, does not account for the dynamic nature of railway operations, where conditions can change rapidly. Moreover, waiting for instructions from the Dispatcher does not always ensure timely response to visual signals that need immediate crew awareness. Therefore, communicating signals as soon as they are clearly visible aligns with the best practices for operational safety and crew preparedness.