Evolution of scientific and technical foundations for the transport system efficiency improvement with the interaction of heavyand low-traffic lines
Objective: The solutions to the problem of low-trafﬁc railway lines functioning has been considered, and the approach to improving the efﬁciency of the transport system with the interaction of heavy- and low-trafﬁc lines has been characterized. The transport network management principles have been developed and the mathematical formulation of the problem of increasing the low-trafﬁc lines efﬁciency has been carried out. The authors have supplemented the classiﬁcation of existing low-trafﬁc lines in order to develop more accurate scenarios for increasing proﬁtability and promoting development of low-trafﬁc lines. The article provides a graphic model of heavy- and low-trafﬁc lines management, a control system comprising structural divisions of JSC Russian Railways and regional authorities, taking into account external factors, the demands of the population and enterprises in transportation and their satisfaction, and technical, technological and information resources. Methods: Methods of analysis and synthesis, systems theory, and mathematical modeling have been used. Results: The conceptual structure of the management model for heavy- and low-trafﬁc lines is proposed. Practical importance: A set of indicators for assessing the low-trafﬁc lines performance characteristics is provided, including quantitative technical, technological and economic parameters, as well as indicators for assessing the quality of transport services. The railway line life cycle stages have been determined and the development and operation scenarios for the low-trafﬁc lines have been given.