What is the function of the green signal in ATC operations?

In ATC (Automatic Train Control) operations, the green signal serves a crucial function by indicating that it is safe for the train to proceed at its current speed. When a train approaches a green signal, it signifies that all conditions are clear, and there are no obstructions or hazards ahead that might require the train to slow down or stop. This indication is essential for maintaining the flow of train traffic and ensuring safety, as it allows for efficient operation while assuring the crew that it’s safe to continue.

This signal is a pivotal part of the signaling system, providing real-time information to the train operators about the state of the track ahead. Proper understanding and response to green signals contribute to reduced delays and enhanced safety throughout the network.