Cities and Megalopolises: The Problem of Definitions and Sustainable Development Indicators

The persistent lack of a generally accepted scientific definition of city seriously hinders the implementation of sustainable development goals adopted by the United Nations as universal strategic guidelines for world progress until 2030, including the sustainable development of cities and settlements. In connection with this, actual problems of defining city and megacity (megalopolis) have been analyzed. A system of integrated indicators of sustainable urban development with regard to the global level has been considered. Particular attention has been paid to the new task for Russia of adapting these indicators to domestic specific natural and socioeconomic conditions, with consideration of the long-term prospects.