If a train is delayed in block in ABS territory, what is the next course of action?

When a train is delayed in a block within Automatic Block Signal (ABS) territory, the appropriate course of action is to proceed at restricted speed until a proceed indication is received. This is crucial because proceeding at restricted speed ensures that the train can stop within half the distance of the sighting conditions, which is vital for safety in case there are any obstacles or other trains in the block ahead.

The principle behind restricted speed is to maintain control and safety when the train is uncertain of the conditions of the track ahead, particularly when signals may not be immediately visible or are absent due to a delay. The aim is to avoid accidents and ensure that a train can respond appropriately to any unexpected situations.

In ABS territory, signals govern train movements, and awaiting a proceed indication is a fundamental safety protocol. This practice helps maintain safety standards and operational efficiency while preventing potential collisions.