The system predicts and resolves traffic conflicts, performing these routing functions like a dispatcher. Two initials and three numbers indicate locations of tracks, sidings and crossovers according to the timetable. Distances between sidings and crossovers can be calculated by the difference between the mileposts in the same subdivision. Each siding or yard has the name designated on the display immediately above the location. Positions are approximate and indicate occupancy of one or more blocks.
Arrow indicates direction of movement.
The train symbol is indicated immediately above a train's arrow. A small number immediately adjacent to the symbol indicates the number of trains that are occupying the same block. All of the information displayed on the screens is for signaled territory. In CTC territory, where the dispatcher controls the signals, the Green Line indicates signals clear for movement ahead of a train. Yellow Line indicates a signal request for movement ahead of a train.