MICROPROCESSOR-BASED TRAIN CONTROL SYSTEMS FOR THE MOSCOW SUBWAY
The paper is an overview of the microprocessor-based interlocking systems implemented on the Moscow subway. The introduction of microprocessor-based control systems and ensuring the safety of train traffic on the Moscow subway is due to the need to replace obsolete relay electric interlocking systems. Such systems were developed and implemented on the subway back in 60-80s of the past century. Microprocessor-based systems have been chosen for use on the Moscow subway based on a previous detailed analysis of global experience. It was known that purchasing and installing microprocessor-based control systems would be cost-effective. The microprocessor-based control systems related to subway train traffic comprise dispatch interlocking systems, relay and processor interlocking, microprocessor interlocking, as well as train traffic interval control systems based on the use of the generation IV tonal track circuits. Microprocessor-based interlocking systems operate continuously in real time. They provide automatic collection of information about the state of monitored interlocked elements while controlling them in real time. This article analyzes the Eurasian experience of using train traffic control systems with a classification diagram of existing varieties of such systems drawn up on its basis. The image of the graphical user interface of an interlocking station dispatcher’s automated workstation is shown on the example of the Bittsevsky Park station, Butovskaya line. A dispatch interlocking structural diagram of the Moscow subway is presented with a breakdown into interconnected modules and a system’s detailed description. The place of microprocessor-based interlocking systems in the educational process of leading railway universities is indicated.