Modeling the life cycle stages of the industrial infrastructure of the city: "stability" quality and "transformation" quality.

The paper substantiates the systemic limitation of the application of the concept of a smart city in terms of duration of the planning horizon. It is shown that use of this method shall be based on the prerequisites for transforming the urban system itself in order to correspond to the current economic situation. In the analytical part of the paper, the assumption is substantiated that the method that makes it possible to assess and predict changes in the stage of the life cycle of the industrial system of a city are multidimensional classification algorithms that allow to separate objects in accordance with similar characteristics. The feature space of the problem of multidimensional classification will be an array of assessments of factors characterizing the state of the regional industrial system, such as: presence of markets for products to neighboring regions/countries, the availability of infrastructure for implementation of expanded production, and availability of raw materials and labor resources, the intensity of competition; availability of raw materials and local labor resources. As a result of approbation, research results were obtained with a sufficient level of statistical significance based on the estimates of these factors in the 50 largest cities of Russia. In conclusion, it was concluded that the regional industrial subsystems of the largest cities in Russia are at different stages of the life cycle, with the majority at the growth stage, which suggests that in these regions it is necessary to set the goal of long-term preservation of ecological landscapes, the load on which will continue grow in the coming decades. At the same time, in cities with industrial subsystems at the stage of maturity, it is necessary to plan for transition to a new type of arrangement of the regional economy, assuming that the next generation of residents will be mainly employed in the service sector. [ABSTRACT FROM AUTHOR]