Abstract
Abstract. Today, under these conditions, the issue of improving the technological processes of subway carriage maintenance and repair to extend the service life of the rolling stock is acute, because due to the economic inability of subway enterprises to update or modernize the existing rolling stock. The algorithm of actions of CASE tools that allow to systematize and automate the stages of developing a model of the technological process of subway carriage maintenance is considered. The article presents the process of subway carriage operation in the form of a complex model, which models the operations performed during maintenance of the volumes of maintenance. Based on the model obtained, it is possible to study the properties and actions on the subway carriage during its operation, to establish clarity and transparency among the processes of the operation system itself, to predict further prospects for the development of technical operation by improving the technological processes of maintenance, improving the quality of their implementation at subway enterprises. Keywords: subway, technological process, maintenance and repair, operation of a subway carriage, model, software.
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