How is superiority determined among trains on single track?

Superiority among trains on single track is determined primarily by direction and the rights conferred by Form L. Form L provides essential instructions regarding train movements, including the hierarchy of trains based on their direction of travel and specific operational agreements. This reflects the need for safe and efficient train operations, ensuring that passenger and freight movements can occur without conflict.

In situations where two trains encounter each other on single track, the established superiority guidelines help to clarify which train has the right to proceed, thus minimizing delays and potential hazards. The designation of superiority is not solely based on other factors, such as engine type, timing of arrival, or weight of the train, since those elements could introduce inconsistencies or complications that are not relevant to the core operating procedures governed by Form L and directional rights.