Abstract: The proposed dispatcher s supervision system for single-track railway comprises positioning, communication, map matching functions and some necessary auxiliary functions. Generaly, the positioning of trains on single-track railway can be implemented using a train positioning system integrating GPS, train monitor and transponder. But in plain regions, when there is no need to differentiate the track a train passes through in railway yard and station, the positioning job can be done with GPS only. In the blind areas of signals such as in tunnels, train monitors are workable for positioning. At railway stations, a precise positioning can be realized by means of the existing track circuits for electric interlocking. GSM-R and TETRA systems are advised to transmit the positioning information. GIS electronic maps have been developed according to the one-dimentional characteristic of railways using some simplified algorithms.