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Given the importance of the ecological component as part of the Internet of Things (IoT) green city platform, it is necessary to constantly monitor the ecological situation in the cities and sub-urban areas. The Kyiv city (Ukraine) has been chosen as a test subject for the study. As a part of sustainability process management systems, we focused on modelling and analysis of the green city service systems. Objective of the study is to research and compare various economic and ecological data from large cities; outline the scope of the green city model that is used for web service design, which is part of larger internet of things sustainable information system platform. The following categories of data had been processed, but not limited to the total cost of the system, the total loss of a natural resource, the amount of investment in restoration or maintenance, the cost of natural materials, oxygen supply, the price of conversion for the exploitation or destruction of a natural resource, land prices dynamics, the tax on the restoration of the territory, the total economic benefit from the territory and the volume of CO2 emissions. Green City e-service platform has been constructed to enable the users to calculate the net cost, losses associated with natural resources available, and replenishment costs, both per unit of area and per unit of time. One of the most important outcomes of the service presented in this paper is the correlation between the urbanization processes (the increase in pollution, densification of buildings, the formation of agglomerations, new transportation, and infrastructure development) and their impact on the overall state of local ecosystems. The presented process management and monitoring service can further be enhanced to create a dynamic forecasting and situational assessment system as part of a green city management platform. [ABSTRACT FROM AUTHOR]

Nowadays, smart cities are a prominent research field with practical implementation. Many prominent economically developed city governments and institutions are working on the implementation of large software, hardware, and IoT systems to help make cities more convenient to manage and comfortable to live in. At the same time, few acknowledge that rural and specific rural suburban areas can benefit from smart system implementation. In this paper the authors present the system model concept of e-services that can be used by local government bodies to manage their settlements. We focus our attention on the case of sub-urban areas for the case study. For data management and system development concept evaluation, the authors have used information from several rural settlements in the Kyiv region (country of Ukraine). The suburban areas management system model is based on the concept of digital e-services, which are often used in the case of smart city and land management solutions. Information systems are vital for effective processing and decision support in the case of large data and complex system management. In addition to information systems rural settlement requires a web portal and notification modules. The presented research work can be used as a substantial foundation for further studies and case implementation for each specific statement, considering local area specifics. In the future, the authors plan to add GIS and land management system modules to the list of e-services, besides researching a way to connect smart city management solutions with the presented suburban areas management digital service. [ABSTRACT FROM AUTHOR]