THE EFFECT OF FAILURES IN INTERVAL CONTROL SYSTEMS ON THE MOVEMENT OF TRAINS ON DOUBLE-TRACK SECTIONS

The level of reliability of systems for train traffic train separation directly affects the safety and conti- nuity of their movement, the speed and timing of delivery of goods and passengers, the labor intensity and cost of transportation, and the costs of operating these systems. If we consider a section of a railway as a complex dynamic system, then with a relatively small weight of fixed assets of technical means intended for interval regulation of train traffic, failures in them signifi- cantly affect the system output. On the railways of Russia, the systems of interval regulation are mainly used with the use of track circuits and the division of hauls into block. Such systems are widely used on the world’s railways. There- fore, the problem of quantifying losses in train movement from failures of electric interlocking devices while through-working and from failures of automatic blocking devices is relevant. The amount of loss depends on the intensity of failures of technical means and the time to restore their operability, on the intensity of train traffic, the length of block sections, the ratio of freight and pas- senger trains on the section, the speed of their movement according to the schedule and the degree of speed reduction due to failures of the considered technical means Both freight and passenger trains move along sections of the Russian railways, the speeds of which can differ significantly, which also significantly affects the traffic loss from such failures. When calculating, one has to use data on block crossing capacity and the capability of accelerating trains. The calculation results provide the possibility of an objective choice of the type of systems under consideration and the requirements for them in a new design or during their reconstruction on railway sections, as well as the possibility of correct distribution of costs to increase the reliability of the oper- ated systems.