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The article deals with the organization of operation when using cryogenic technologies for gas locomotives and isothermal cars (IV). The structure of transportation of perishable goods (SPG) by types of rolling stock and types of cargo and the peculiarities of transportation of frozen fish from the Far East to the central regions of the country is presented. On the example of their consideration, a new structure of the type of isothermal rolling stock (IPS) is proposed, including various types of single isothermal cars, large-capacity refrigerated containers and swap bodies. It is proposed to use the block-modular principle of forming energy refrigeration equipment for promising autonomous refrigerated cars (ARC). A review of promising ARC models developed by UralVagonZavod and Altayvagon, ready for serial production, has been carried out. The factors that should be taken into account when creating an innovative isothermal rolling stock are formulated. Variants of using cryogenic technologies for an autonomous refrigerator car and single insulated cars are considered. Based on the results of previously conducted operational tests of autonomous liquid nitrogen cars, the main their advantages and possible areas of use are given. The technology and technical solutions for improving the design of the cooling system of the cargo space for thermos cars cooled with liquid nitrogen have been substantiated. The calculated characteristics of the consumption of liquid nitrogen during the transportation of frozen goods are presented. The advantages of using environmentally friendly liquid nitrogen cooling systems are analyzed and the areas of using cryogenic technologies for isothermal rolling stock are formalized. Uncertainty and spontaneity of the perishable goods transportation market, along with the absence of a large customer, poses a difficult task for car builders to organize serial production of isothermal rolling stock with small production volumes and various technical characteristics. Therefore, when creating isothermal and refrigerator cars, it is advisable to focus on a single universal car kit based on an isothermal body with the possibility of transforming it by using various options for energy refrigeration equipment and chassis.

One of the priority areas of economic development of the Far East Region is focused on the communications with the countries of the Asia-Pacific Region. The region is crossed by the largest railways, such as Trans-Sib and Baikal-Amur, which have an access to the Far East seaports that promotes the growth of international trade operations and the increase of the transit traffic in the region. An expansion of transport and economic relations of our country in the Far East Region, the implementation of a considerable number of extractive industry programs ​​ within Baikal-Amur Region, the development of the sea ports of the Far East Region will cause the growth of the workload on the rail infrastructure that is impossible without its development and modernization. An important role in the transport process belongs to the technical stations, which handle all transit trains traffic. Therefore, at the current state, the consideration of the aspects of choosing the rational variants of railway transit nodes’ development with allowance for the environmental factors is timely.

In the course of scientific support of design, construction and operation, as well as forecasting the development of transport infrastructure in the Arctic region, RUT (MIIT) scientists have proposed a methodology for working out new design and technological solutions by testing them on a small section of the route that has received the status of experimental; a number of solutions have been proposed that can be taken into account and used during the development of transport infrastructure in the Arctic. To verify the university's developments, a number of expeditions were undertaken to study the features of the conditions of construction of transport facilities, including climatic and engineering-geological, as well as the condition of existing transport facilities (the Salekhard - Igarka Polar Highway): survey expeditions in 2005, 2012; joint expeditions with the Russian Geographical Society with the participation of scientists from the Institute of Roads, Construction and Structures of the Russian Institute of Transport (MIIT) in the Arctic region in 2019 - 2021, during which a geomonitoring network was organized; data on temperatures in the air, near-surface zones and in the ground environment were obtained; the analysis of the ground environment was carried out; recommendations were given on the specifics of the construction of transport facilities, including the construction of the roadbed, using different variants of technical and structural and technological solutions. The purpose of the article is to generalize the experience of the development of the northern territories through the development of transport communications and the testing of new structural and technological solutions for the construction of the roadbed by means of a local section of the highway in the status of a pilot site. The approach presented in this article can be used to form a methodology for solving the problem of creating an effective High-latitude Russian transport system in the Arctic zone of the Russian Federation with forecasting trends in its development.