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2025 ¹1 | |
Main subjects
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AbstractsA.E. Gorev, O.V. Popova
The article is devoted to the balanced development of urban transportation systems, including the improvement of environmental friendliness of urban passenger transport. The paper presents the results of research into the effectiveness of replacing buses with electric buses with dynamic charging on the example of a number of routes in St. Petersburg. Such replacement gives a steady effect in the form of reduction of operating costs, which can be increased by increasing the service life of the battery.
S.P. Vakulenko, V.I. Apattsev, K.A. Kalinin, A.D. Ershov
The article describes the algorithm developed by the authors for determining the size of freight train traffic in various sections of railway junctions and the required number pool allocated in the normative train schedule. The algorithm takes into account the structure of a railway junction, the mutual location of stations open for freight work and tariff restrictions on the passage of freight trains on separate sections of the railway infrastructure of the junction.
E.V. Scherbinina
The article proposes a unified methodology for building a schedule of turnover of transport units in passenger transportation, taking into account the idle time of rolling stock under technical inspection and different types of repairs. The methodology also allows to determine the required fleet of rolling stock and is applicable to any type of transportation.
E.V. Sorokina, D.A. Romashov, O.S. Sachkova, S.L. Samoshkin
The article is devoted to experimental determination of dimension-weight parameters of passenger excursion car model 61-941 created on the basis of serial passenger car model 61-4179 during overhaul-repair (CRR) by Tambov Car Repair Plant. Statistical processing of the test results has shown that the passenger car of model 61-941 meets all normative requirements by its dimensional and weight parameters.
V.A. Esaulov, E.V. Medintsev
The problem of optimizing the return of train traffic from port and border stations on the example of the Eastern polygon is solved. The solution of the problem makes it possible to normalize the transit and unloading train flows from the stations of mass origin when building the normative train schedule, as well as to redistribute the work on the formation of unloading train flow between the stations depending on the intensity of the predicted approach of cargo.
K.S. Yanikeev
The article considers the system of wagon flow organization in the formation of transport corridors on the railroad network. The analysis of the car turnover indicators for 2021-2023 is carried out. The ways of increasing the transit wagon traffic on the section of the railway polygon are considered. The calculations proving the expediency of forming a transport corridor on a separate line are presented.
A.O. Petrov
The nature of dependence of friction coefficient on the speed of movement, revealed earlier, shows other features at a new consideration. In the course of the work the analysis of the parameters on which its instantaneous value depends is carried out, comparison with the characteristic for the disk brake is carried out.
G.A. Chernova, A.V. Popov, M.V. Velikanova, V.E. Kostin
The issues of state control of passenger transportation by buses are considered. The aim is to evaluate the efficiency of state control. The results of inspections of the activity of carriers and individual entrepreneurs concerning road traffic safety in passenger transportation on regular routes of Volzhsky city are given. Proposals for further improvement of the situation are given.
V.S. Kuzmin, R.O. Ryadchikov
In this paper using computer modeling based on the finite element method, the characteristics of the external electromagnetic field formed during the operation of asynchronous traction motor in the area of suspension of the receiving coils are determined. The necessity of further study of the inductive coupling features of the receiving coils of the main safety devices and external electromagnetic fields formed by power equipment is pointed out.
V.S. Kolokolnikov, T.A. Falaleeva
The study of railroad sections and polygons on simulation models has shown a strong interrelation between station and section infrastructure, throughput capacity and train flow structure. A change in the latter with inadequate infrastructure inevitably leads to a reduction in the capacity of the section. The results of experiments that demonstrate this interaction are presented, and recommendations for its improvement are given.
V.G. Sidorenko, E.V. Kopylova, M.A. Tumanov, V.A. Kopylov
The article deals with the issues of current maintenance and cleaning of stopping points on railway transportation and other similar works, the quality of performance of which has a significant impact on the level of JSCo "Russian Railways" performance evaluation. The technology of maintenance of stopping points with low passenger flow by mobile brigades is proposed. The mathematical formulation of the corresponding optimization problem is performed.
A.G. Otoka, R.R. Ikaka, O.V. Kholodilov
The article deals with the application of convolutional neural networks for detection and classification of defects detected in magnetic powder inspection of parts and components of railroad rolling stock. A variant of the algorithm of building a neural network on the basis of the existing programming environment Google Colab, libraries Tensor Flow and Keras and programming language Python is offered.
V.V. Soloviev, S.V. Fedorova
This publication analyzes machine vision algorithms for monitoring safety standards at construction sites. The process of algorithm creation is described: from image collection and augmentation to training an artificial intelligence model. In previous work, a model was developed to identify the danger zone around a crane and to monitor the movement of personnel with alerts.
A.S. Filipchenko
Mathematical principles of the reference ranking algorithm based on the synthesis of linear algebra and graph theory are described. The adaptation of the algorithm to the graph model of the topology of parallel specialized computing systems is carried out. For approbation of the proposed method of modeling the weight characteristics of nodes of computing systems the oriented graph of the parallel specialized computing system "CDF 9/7" is used. The program realization of the adapted algorithm of link ranking in the form of a web-application with a graphical interface is demonstrated.
V.A. Kochnev
The article deals with working conditions and risks faced by brigades servicing ecologically clean toilet complexes (ECTC). Negative factors of working environment at maintenance and repair of ECTC are considered. A set of measures to ensure labor safety of workers is offered.
D.S. Shulga
The article presents general principles and algorithms of assessment of professional risks, which may affect the workers of railway transportation when performing work in normal mode.
L.A. Levanchuk
To assess the impact of factors of the production process on the health risk indicators of workers, it is advisable to identify the share of the influence of age-related health changes on the risk. As a result of the research the dependences are determined, which are further used for determination of personalized indicators of health risk of workers in different conditions of transport industry without taking into account the influence of age changes.
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