Track occupation diagram

Track occupation graph. For a station, a drawing that recalls the typical representation of a GANTT (time schedule of activities), with time on the abscissa and the reference to the tracks of the same system on the ordinate. The graph represents the occupation of each track, marking the occupation by a train (or material) for the corresponding rest interval. The graph can also be completed with various other symbols and data that complete the information content (shunting movements, periodicity, etc.). It  constitutes a synthetic work tool, used in the various yearly planning and management activities, which also gives rise to the train assignment frameworks available to the public