Increasing the throughput capacity of railroads is possible through the introduction of coordinate systems of interval regulation of train traffic based on satellite navigation equipment. Since the accuracy of coordinate determination by means of satellite navigation is unstable, it is proposed to use a local differential system of departmental purpose as a means to control the availability of navigation determinations GLONASS/GPS coordinate systems of interval regulation of train traffic. The method of differential pseudorange correction and the method of direct differential coordinate correction are considered. We analyzed the effectiveness of these methods in the Mathlad software package, using daily range measurements of stationary GPS stations located in Canada. The analysis showed that the method of controlling the availability of navigation determinations on the plane using direct differential coordinate correction is more stable and reliable in operation.

Keywords: satellite radio navigation, control of availability of the required navigation characteristics, accuracy of positioning in transport