What does the indication of a specific signal mean for a train operator?

The indication of "proceed" signifies that the train operator is authorized to continue moving forward. This signal communicates that it is safe for the train to advance, whether at a normal speed or at a restricted speed depending on any additional conditions or signals that may apply. Understanding this signal is crucial for maintaining the flow of train operations and ensuring safety on the tracks, as it facilitates proper movement along the railway network.

In contrast, signals indicating "stop," "reverse," or "halt until further notice" would require the train operator to take different actions that typically involve stopping the train, reversing direction, or waiting for further instructions before proceeding. These actions can interrupt the movement, so recognizing the meaning of "proceed" allows the train operator to ensure they are operating the train efficiently and safely within the parameters of the rail system.