What does a signal showing Red over Red over Red typically instruct?

A signal displaying Red over Red over Red universally indicates a command to stop. This configuration typically signifies that the track ahead is not clear, and the train must halt and assess the situation before proceeding. This signal is a critical safety mechanism designed to prevent accidents and ensure the safety of both the train crew and any potential hazards on the track.

In practical terms, a Red over Red over Red signal is a standard indication across various rail systems, communicating clearly to train operators that they must come to a complete stop and await further instructions or clearance to move forward. It is essential for maintaining safe train operations, especially in busy or complex rail environments.

Understanding this signal is vital for train operators to ensure compliance with operational protocols and safety measures on the railway.