Features of Structural and Functional Interaction in Calculating the Standard Value of Empty Wagon Flow

The objective of the article is to show the possibility of controlling empty wagon flows belonging to different operators using the example of structural and functional relationships. The interaction of the per-flow control of wagons with the systems of operated fleet size regulation can show a possibility of establishing the standards of separate rail wagon dispatch for individual operators in structural schemes. Then with a decrease in the disorganisation of the wagon flow, grows a possibility of redirecting the wagon flow to different loading stations, thus increasing the controllability of the fleet and reducing to zero additional runs from one loading stations to those actually specified in the transport shipping documents.
The study suggests applying scientific approaches when working with limiting points that arise due to the standardisation of the operating parameters of wagon fleets. The proposed approaches, under different operating modes, will lead to a decrease in restraints. The first operating mode: a shortage of wagons, in which the network operates as a channel: the network accepts and processes the entire incoming flow (brings it to loading stations), sometimes there is a shortage of wagons at loading stations. The second operating mode: the network operates as a sort of buffer storage, the network accepts all wagons for transportation, but is unable to transport them, cargo wagons are accumulated on the network temporarily delaying their transportation through routes. Comprehensive measures are required to stabilise the work with wagon fleets. The third operating mode essentially reflects the use of comprehensive measures. In this mode, the transport network operates in conditions of the influence of excess cargo wagon fleet, while accepting for transportation only the number of wagons that it can transport. Excess wagons, from the point of view of the impact on the public infrastructure, remain on non-public tracks. To operate under introduced limitations, it is proposed to work on reducing the disorganisation of the wagon flow, which, together with per-flow control, will reduce the number of limitations, reduce the load on the carrier’s infrastructure. An example shows implementation of the suggested approaches as for applicability of the idea of perflow wagon control through standardising the changing destination of empty wagons for places of mass loading considering the structural and functional interaction.

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