The economic basis of the well-being of modern cities is scientific, industrial, and cultural opportunities. Solving the environmental problems of large cities is hampered by the fact that their activities are based on the concentration of many types of resources. The lessons of the COVID-19 pandemic are forcing us to look for new methods of managing megacities. A feature of megacities is the constant influx of guests — tourists, foreign workers, students, etc. The article proposes an approach to solving problems related to the regulation of the influx of city guests. A dynamic model of the spread of infection has been compiled, the arguments of which are restrictive and quarantine measures. At the same time, the problem of finding an economically justified balance between the external effects of an ecological nature and the possibilities of limited resources is being solved. When solving these two problems using modeling mechanisms, it becomes possible to use the information flows of smart city systems, and the calculation results provide the basis for making an optimal set of administrative and technical decisions
Keywords: smart city, epidemiological situation, quality of life, digital economy
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