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The introduced results of the investigation by valuation of efficiency the employment of the locomotives of the diesel (the diesel locomotives 3TE10M, UzTE16M3) and of the electrical (the electric locomotives 3VL80S) tractions in the plainly direction of railway track by the method of averagin design values. Modified average significances main indicator move working of the investigations of the diesel locomotives 3TE10M, UzTE16M3 of the evaluation mind numeral and table facts, and also graphic arts dependences, representative oneself arithmetical mean value with taking into account of the movement goods trains without any stops and with stops on the spaces stations, passing - tracks and divides points, which have received in the result to uses of the traction calculation for different conditions organization of the goods movement. Designate equations for organization calculation values mention exponents in the accepted range changing of the masses trains

The article includes research results of substantiation 3ТЕ10М diеsel locomotive`s movement work parameters on a hilly-mountainous direction of railway while moving freight trains with stops and without any stops on the spaces stations and separating points

The article includes research results of analyzing and evaluating 3ТЕ10М diesel locomotive`s efficiency on a hilly-mountainous direction Marokand-Navoi of Uzbekistan railways while hauling freight trains with and without stopping on through stations (division points).Main parameters of basic movement work of researched UzTE16M3 diesel locomotives are shown as tabled values and graphic dependencies,also equations of organizing necessary calculations mentioned above in accepted range of mass variation are marked here.

In January 2022, a line of 2,000 cars formed at the Russian-Chinese border, waiting to be allowed to cross the state border [1]. The main reasons for the accumulation of a large number of vehicles at border checkpoints are restrictions on the movement of vehicles and cargo due to the difficult epidemiological situation, the lack of operational information interaction between transport organizations and regulatory authorities, insufficient capacity of the transport and terminal and logistics infrastructure. Consignors are switching to sending containers by rail, including the issue of piggyback transportation. In recent years, Russian Railways Holding has been actively developing a logistics service for the transportation of semi-trailers by rail, including in international traffic. Transportation of goods in piggybackers from the border provinces of the People's Republic of China towards the northeastern regions of Russia, where the transport infrastructure is poorly developed, difficult climatic conditions and irregular transport links, is an effective way to deliver goods to ensure an uninterrupted supply of the population of the region. As part of the strategy of the new Silk Road «One Belt - One Road» one can organize piggyback routes in the direction of Suifenhe - Grodekovo - Nizhny Bestyakh with the formation of the necessary cross-border terminal, logistics and transport infrastructure. The subject of this study is the analysis of the infrastructure of the Pogranichny railway checkpoint and the technological processes for organizing international piggyback transportation. The aim of the work is to develop a project for the infrastructure equipment of the terminal and logistics complex of the Pogranichny railway checkpoint for the organization of piggyback transportation. This paper uses theoretical research methods, including system analysis and information synthesis. By analyzing quantitative and qualitative indicators, operating technology and technical equipment of the Grodekovo station, the objects of the terminal and logistics infrastructure and issues that need to be addressed in the implementation of piggyback transportation were identified. The article presents the transport and technological schemes for the delivery of piggybackers, which are based on the functioning of terminal and logistics complexes, united by a single information space, and also considers the elements that affect the efficiency of organizing piggyback transportation. Transport industry experts predict a further increase in the volume of passage and transshipment of goods through the Far Eastern transport corridors, so the use of non-reloading transportation technologies and the implementation of the principles of «seamless» logistics will require reformatting the border terminal and logistics infrastructure with the introduction of digital services for the interaction of participants in international transportation.

The contact line is a special kind of power overhead line with multiple electrical connections of wires, which form a complex topology of the linear electrical circuit. Analytical models simplify the real topology of the contact line and it limits their functional application. It is possible to take into account the topology of contact line when using tools of computer simulation, but it entails complicating the computational algorithms of the model. The aim of this article is to determine the conditions for the application of current distribution models and the development prospects in this area. The article describes the existing models for calculating the current distribution in DC contact line: a model of natural current distribution, linear analytical models, model with an infinite number of droppers, a model with a direct application of Kirchhoff's circuit laws in matrix form, and a finite element model. The article contains the main provisions and calculation capabilities of each model. Contact line KS-250-3 acts as a calculation catenary for the comparison of current distribution models. You can use the results of the article to select the optimal design distribution model for the design of the contact line, thermal analysis, current-carrying capacity calculation, identification and elimination of «weak point».

The article deals with issues related to theoretical and experimental studies of operating modes of the traction power supply system. The analysis of the comparison of voltages on the tires of traction substations with uncontrolled rectifiers and tires of traction substations with converter units equipped with a system of non-contact automatic voltage regulation is shown, the differences between them are shown. The modes of operation of the active partitioning post with the point of increasing voltage have been studied in detail. As a result of research, it was found that the observation time of maximum voltage values at substation tires above the average no-load voltage level is about 5 -10% of the time of day, about 7 - 8% at active posts, and 10 - 13% at passive posts. The maximum power in the active mode of the post sectioning with the point of increasing the voltage at lower voltage in the contact network is 2.9 MW. The average amount of electricity returned to the contact network point of increase of voltage, in one case is 170 kWh. The average duration of work in active mode for one case is 8,6 minutes.

Results of the analysis of normative and legal documents of the Russian Federation, and also the internal normative documents establishing the main target indicators and requirements to activities for energy saving in «Russian Railways» Holding are given in article. Need of carrying out updating of Power strategy of «Russian Railways» Holding and revision of the list is proved by the mechanism of its realization.

The factors affecting the operational reliability of the assembly platform of a rail service car maintaining the repair and installation on the railways are considered in the paper. An assessment and analysis of a system of quantitative indices of reliability is performed, the methods for their separate determination by mechanical equipment and hydro and electrical equipment is described. The strategy of maintenance and repair combined with the use of methods and means of a modern diagnostic system is considered; it ensures the estimation of the object reliability during its design, operation and repair.

The traffic speed increasing on the railways makes strict requirements to the supporting and supporting structures of the contact network, as well as to the parameters and indicators of the contact suspension. The presence of dry friction in the cantilever attachment points indicates a negative effect on the accuracy of adjusting the wires of the contact suspension and on its parameters. The article presents the results of studies of the dry friction value in the console fastening points depending on the type of the contact suspension and suggests a method for reducing friction in the console attachment points. The results of calculations of the effect of friction in the console attachment points on the tension variation along the length of the anchor section are presented.

The analysis of functioning of difficult transport systems is provided in article, the basic principles of use of simulation modeling in the organization of transportation process on railway transport are characterized. The method of creation of object-oriented model for the description of dynamics of interaction of cargo station and a way of uncommon use is considered.

In the context of the sanctions policy of Western countries the main economic partners of Russia and consumers of commodity flows are the countries of the Asia-Pacific region (APR). According to the results of 8 months of 2022, the trade turnover between the Russian Federation and the People's Republic of China (PRC), according to the General Customs Administration of the People's Republic of China, increased by 31,4 % and amounted to $ 117,2 billion [1]. The People's Republic of China borders on the southern regions of the Russian Far East - the Amur Region, the EAO, the Primorsky, Zabaikalsky and Khabarovsk Territories. There are 9 border checkpoints located in the Khabarovsk Territory: air, river, mixed, automobile, sea, which makes it possible to form new multimodal transport routes for the delivery of foreign trade goods. The purpose of the work is to consider alternative options for multimodal transportation of foreign trade cargo flows through the transport network of the Khabarovsk Territory and transshipment points of the Amur Basin. The objectives of this study are: analysis of the volume of foreign trade turnover between Russia and China, development of technological schemes for the transportation of containers in the direction of «river ports of China - Khabarovsk River Port (RF) - land transport - western regions», consideration of promising routes for the transportation of foreign trade goods through cargo and passenger checkpoints «Pokrovka - Zhaohe» and Bolshoy Ussuriysky Island of the Amur swimming pool. The subject of this study is the transport and logistics infrastructure of international multimodal routes of the Amur Basin. In this work, theoretical research methods are used, including system analysis and synthesis of information. The article examines the characteristics of the terminal and logistics infrastructure of the Amur Basin river ports, the dynamics of container transportation by river transport from the ports of China to the terminals of the Khabarovsk River Port, gives a feasibility study for the organization of a permanent customs control zone at the Khabarovsk II station, and also describes the advantages of using the Pokrovka - Zhaohe border checkpoint as an element of an alternative multimodal container transportation routes. In the final part of the work, a description of the simulation model of the operation of a mixed (automobile-river) checkpoint in the presence of customs and transit terminals for assessing the capacity of border checkpoints of the Far Eastern District is presented.