What is the primary function of a timetable in train operations?

The primary function of a timetable in train operations is to serve as the authority for the movement of regular trains in passenger service. This document plays a crucial role in the efficient scheduling of train services, ensuring that trains depart and arrive at designated times while also coordinating the use of tracks among different services. The timetable provides essential information to both train operators and passengers, including the timing of arrivals and departures, which is vital for maintaining orderly and timely service.

In addition to this key function, timetables also help in the management of train traffic, allowing for the effective organization of scheduling to minimize delays and optimize the flow of trains on the tracks. While other documents may address maintenance schedules, emergency procedures, or operator certifications, these do not serve the same pivotal role of facilitating regular train movements and providing the operational framework that a timetable does.