What should be done if a train is delayed in block territory?

When a train is delayed in block territory, maintaining restricted speed until signal indications improve is the appropriate course of action. This ensures the safety of the train and the personnel involved. Restricted speed allows the train to operate cautiously, taking into account the possibility of unexpected scenarios, such as obstructions on the tracks or the presence of other trains in the vicinity.

By adhering to restricted speed, the train operator can react appropriately to any signals or conditions that may change, ensuring that they can stop safely within the range of vision and not exceed the limits of their operational safety measures. The focus is on minimizing risk and maintaining a high level of safety for all trains moving through that area.

Other options may not prioritize safety effectively; for instance, waiting for permission to continue could cause unnecessary delays without addressing the reason for the initial blockage. Calling for a relay crew is not always necessary unless there is a significant operational issue that specifically requires their assistance. Continuing at normal speed once clear of a blockage could lead to safety violations, as it undermines the need for caution in potentially hazardous situations.