Chairman of Editorial board Юсупов Рафаэль Мидхатович, д-р техн. наук, профессор, чл.-корр. РАН, Институт информатики и автоматизации РАН,

Objective: To discuss the feasibility of modifying the analytical calculation technique for the required number of receiving and departure tracks in the technical station yards. To show the need to introduce new adjustment factors to assess the time spent by a transit freight train at the station, considering the influence of external factors – often random events – on the duration of the receiving and departure track occupation; to determine the possibility of adjustment factors application for a preliminary assessment of the required number of receiving and departure tracks; to substantiate the need for simulation of the station operation for a more accurate assessment of the required number of receiving and departure tracks depending on the time spent by a transit freight train at the station, considering the influence of external factors. Methods: Comparative analysis of the existing techniques for determining the required number of receiving and departure tracks, assessment of analytical dependencies, and substantiation of the need to introduce new adjustment factors based on the analysis of the technical stations’ reported performance indicators are applied. Results: The need to improve the existing analytical calculation technique for the required number of receiving and departure tracks has been indicated. The groups of factors influencing the time spent by a transit freight train at the station, including the required number of tracks, have been determined. New adjustment factors to assess the time spent by a transit freight train at the station have been proposed. The need for additional study of this issue has been revealed. Practical importance: The authors have shown that it is necessary to clarify the existing analytical calculation technique for the required number of receiving and departure tracks by introducing the adjustment factors, which will improve the accuracy of determining the required number of receiving and departure tracks at a technical station.

Purpose: The development of machine-friendly calculation algorithm of maximum average (reduced) slope for to define minimal norms for securing cars, groups of cars or train stocks that’re left on station railways without locomotives. Methods: The set task solving was held by making up the succession of mathematical and logical actions. Mathematical expressions describe flattening of track longitudinal profile, i.e. the calculation of reduced slope. Logical actions describe limitations at pursuing the calculations. Results: Calculation algorithm of reduced slope has been made up which takes into account the provisions of Instructions on Train Motion and Shunting Work on Railway Transport of the Russian Federation. Practical significance: The developed algorithm allows to pursue the calculation of reduced slope at the least favorable conditions of the placement of cars, group of cars and stocks of trains in the frames of effective length of station tracks that corresponds to provision conditions for rolling stock securing from leaving. The pursued research allows to develop program for defining minimal norms for securing cars, groups of cars and stocks of trains that’re left on station railways without locomotives, in full accordance with Instructions on Train Motion and Shunting Work on Railway Transport of the Russian Federation.

The research was carried out with the aim of studying, analyzing and research the technical and technological features of ore railways of industrial transport enterprises. As a result, the classification of operation pointы of ore railways was carried out, the features of the infrastructure, the train organization, freight work, rolling stock were described, and opportunities for improving the efficiency of freight transportation were identified.

No abstract