On the process of interaction of technical stations and hauls when passing train flows

Abstract

The issues of traffic intensification on railway lines are always of high relevance. The throughput and carrying capacity of the railway line is determined by calculation on the basis of analytical dependencies, however, as in previous periods of the development of railway transport, currently, certain directions experience serious difficulties in passing train flows. At the same time, accepted calculated indicators of the throughput capacity of such lines do not allow to objectively determine the causes of difficulties in passing train flows and to develop the necessary solutions to overcome them. Railway infrastructure can be divided into several enlarged elements: sections, inlet and outlet necks of technical stations, pick-up  and drop-off parks. This article does not consider power supply devices, locomotive facilities, performance of which changes less dynamically.
Based on the research and experience in organizing the passage of train flows on one of the busiest railway lines of the TransBaikal Railway, the authors attempted to identify the main factors affecting the throughput and carrying capacity of freight-intensive directions, as well as to justify the need for integrated approaches in analyzing the throughput of a railway line with the interconnection of its main  constituent elements and the definition of limiting. The article discusses in dynamics the interaction and mutual influence of the indicators of the main elements of the railway lines, as well as the analytical dependencies that allow to interlink the indicators that determine the throughput of individual elements of the railway line during their interaction. The results of analytical calculations are consistent with statistical indicators of the operation of railway lines in real operating conditions. With this in mind, significant dependencies between stages and technical stations were determined.