If a train encounters a Restricting or Stop signal not indicated by the preceding signal, what must the crew do?

When a train encounters a Restricting or Stop signal not indicated by the preceding signal, the appropriate action is to stop the train and promptly report the occurrence before proceeding. This protocol is in place to ensure the safety of the train and its crew, as unexpected signals can indicate potential hazards or the need for additional instructions from the Dispatcher.

Stopping the train allows the crew to assess the situation and communicate with knowledgeable personnel who can provide necessary guidance. By reporting the occurrence, the crew helps maintain the overall safety and operational integrity of the train service. Proceeding only after receiving authorization from the Dispatcher ensures that the crew is following safety protocols and responding appropriately to the signals encountered.