What does the signal represented by GREEN OVER YELLOW indicate?

The signal indicated by GREEN OVER YELLOW is commonly understood in railway signaling as a directive to proceed on a diverging route at an allowable speed. This signifies that the train operator should continue moving forward but may need to adjust speed according to the conditions of the diverging track. The green aspect indicates clearance to move forward, while the yellow aspect warns the operator to be prepared for a change in route, necessitating caution in speed management.

Understanding this signal is critical as it ensures that train operations can continue efficiently while still maintaining safety protocols, particularly when transitioning from a main track to a diverging route. The operator should always be ready for potential changes in track conditions that may affect operation.