Efficiency of implementation of interval traffic regulation by the "virtual coupling” system on the section of the railway line in the framework of the "digital railway” project

Abstract

In order to remain competitive in the world market, to maximize the needs for transportation with increasing volumes of work, to ensure the availability and quality of services provided on railway transport in the field of organizing the transportation process, it is necessary to use modern digital approaches. The article provides an assessment of the existing technology for organizing the driving of connected trains using the example of the operation of the Mariinsk - Krasnoyarsk-Vostochny section of the Krasnoyarsk railway. With the development of technology for driving connected trains, it has become possible to connect trains by means of a virtual coupling, which does not imply physical coupling of trains using an automatic coupling device, while the trains are in a constant, equidistant, position from each other. To analyze the efficiency of organizing the driving of double trains in the "Virtual Coupling" mode, the authors of the article built train schedules with an interval for double trains of four minutes, and in the future with an interval of two minutes. The calculation of the main indicators of the train schedule and the line capacity has been made. The calculation revealed that with the introduction of the technology of interval regulation according to the "Virtual Coupling" system, the required throughput of the railway line increases by 19.05% relative to the existing traffic schedule with the use of double trains. The use of trains with "Virtual Coupling" on the Mariinsk - Krasnoyarsk-Vostochny section is preferable, since their use reduces losses in the traction network, power consumption and other parameters of the traction network, and the voltage at the locomotive current collectors is significantly higher than when using connected trains. The economic effect from the use of this technology for organizing the work of the Mariinsk-Krasnoyarsk Vostochny section will amount to 894.14 thousand rubles per year.

Research on virtual coupling railway safety protection based on track prediction

“…And sudden passenger flow often causes the imbalance of the bureau's transport capacity demand, leading to the decline and even paralysis of the transport capacity of the line network, which seriously affects the operation quality of urban rail transit and passenger experience. In order to further improve the urban transportation capacity, the train formation technology has become a new research hotpot in the field of urban rail transit [2] . Literature [3] proves that virtual coupling is feasible and that virtual coupling is to some extent more secure than physical grouping.…”