The article describes radio channel based train traffi c control system features related to the processing of data from traditional signaling systems and cab equipment. Existing railway automation and remote control systems allow to check train position discretely by track circuit occupation. Modern control systems are based on coordinate regulation principles with data transmission by digital radio channel and use more accurate data about train position processed by onboard navigation system.However the probability of wrong positioning exceeds the requirements to railway automation systems. Therefore the method of mutual processing of data from cab and traditional automation systems about track circuits condition is offered in the paper. The analysis of correspondence of real train position and data about track circuit occupation received in radio block system center with estimation of data receiving delays was conducted. The process of coordinates calculation and transmittion to radio block system center by cab equipment is described. Comparison of two data sources in radio block system center considering data transmission delays allows to check onboard positioning system at the moments of track circuit borders passage and ensure onboard navigation system operability. Moreover this method allows to estimate train length that is necessary to calculate the time to pneumatic brake system operation. Results of this research allow to ensure the implementation and reliable operation of coordinate interval train traffi c control system.
ERTMS/ETCS, interval train traffi c control system, radio block system center, track circuit, digital radio channel, satellite navigation, coordinates, onboard cab equipment, ERTMS/ETCS
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