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This article presents dynamic model for numerical researches of oscillations of the main frame of an electric locomotive taking into account the impact of longitudinal efforts arising in the automatic coupler.

Electric power installation of a special self-propelled rolling stock used in the power supply divisions is considered in the paper; the expediency of its use for the analysis of the main energy indices, in particular, the evaluation of the efficiency of electro-hydro-mechanical units at separate and joint operation, is shown. To assess the energy efficiency, an integrated efficiency factor has been proposed that allows to account the energy parameters of electrical installations operating in various modes. Recommendations have been given to increase the power factor of electrical installations.

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.

Intermodal transportation management is a complex and responsible process. When carrying out international and intercontinental contrailer transportation, rail transport is traditionally used. The task of railway transport is to ensure transportation along the so-called «land bridges» - land sections where the route begins or ends, or through which it passes in transit. Despite a significant level of computerization and informatization, the level of delays in the delivery of goods in the field of contrailer intermodal transportation does not decrease. The unsatisfactory progress of the contrailer trains is a significant factor in the occurrence of these delays. This problem is common, and not only appears before intermodal operators operating the Siberian and Eurasian continental land bridges, which pass through the territory of Russia and Kazakhstan, respectively, and for the delivery of goods from Japan, South Korea and Taiwan to the countries of Eastern Europe. Named problem applies to the American and Canadian land bridges, through which Japanese goods reach consumers in the United States and Canada and through the ports of Germany and the Netherlands to consumers in Western Europe. This situation is due to the lack of effective approaches to the construction of control systems that would demonstrate a high level of efficiency in conditions of uncertainty, which is a natural component of the transportation process.

The main purpose of this article is to analyze the tools of blockchain technologies used in the field of supply chains. To achieve this goal, a detailed analysis of individual technologies is carried out, practical examples of their use are given, proving the useful effectiveness of its integration. The spread and formation of information technologies are an existing fact in the modern world. Over the past decades, this direction has determined the main trajectories of the development of the economy, industry and society as a whole, which in turn leads to enormous changes in the aspect of technological progress. The formation and development of the digital environment is one of the top priorities of most developed countries, including the Russian Federation, the USA, Germany and others. Modern technological progress is characterized by the development and formation of various information technologies that contribute to improving the rational use of resources and improving the efficiency of modern enterprises. Currently, there is a huge variety of applied and professional tasks, the most effective solution of which involves the use of various kinds of information technologies. In this article, the question is raised about the relevance of using Blockchain technology, about possible problems of its implementation, about what blockchain can give to various sectors of the economy and logistics. To understand the question of how the blockchain works, the second-generation Ethereum blockchain is taken as a basis, which includes an updated system of smart contracts and much more. Topical issues that blockchain is able to solve in logistics, such as inventory and cargo tracking, authentication, transparency in supply chains, increasing the speed of cargo delivery, and the creation of a freight market, are considered. The possibility is also considered and a description of the application of this technology on the railway network of Uzbekistan is given. This technology is applicable in many sectors of the modern rapidly developing world and is able to accelerate the development of the digital economy.