What is the purpose of a marker displayed at the rear of the train?

The purpose of a marker displayed at the rear of the train is to indicate the rear of the train. This is crucial for safety and operational awareness on the railroad. The marker serves as a visual cue for other trains, railway workers, and maintenance crews, helping them to identify the end of the train clearly and prevent collisions or accidents. Markers also contribute to proper train management practices, ensuring that all involved parties can ascertain the full length of the train on tracks, especially in low visibility conditions.

While signaling for an emergency stop, denoting speed limits, or providing a light source are important aspects of railway operations, they do not directly pertain to the specific function of a marker. The marker’s primary role is to ensure the safe identification of the train’s position and extent, thus enhancing overall operational safety on the railway network.