What does a Proceed Indication signal indicate to a train?

A Proceed Indication signal indicates that the train can continue moving without the need to stop. This signal is crucial for maintaining the flow of train operations, allowing crews to carry on with their schedules while ensuring safety standards are met. When a train receives this indication, it is clear that the tracks ahead are safe for travel, and there are no restrictions or conditions requiring a stop.

This understanding is vital for train crews, as it directly affects their operational decisions and efficiency in adhering to timetables. The other choices imply scenarios that involve stopping or reversing, which do not relate to the positive indication provided by a Proceed Indication signal.