CYCLICITY PHENOMENON AND LIFE CYCLE IN THE DEVELOPMENT OF URBANIZED SYSTEMS

The nature of the cyclicity phenomenon and life cycle in the development of urbanized systems is outlined. The paper defines the extent to which the components determine the processes peculiar to cyclical development. To generate the hierarchy of factors causing the cyclicity in urban development, uniqueness of origin, and patterns of urban cycle development, the model of space five-dimensionality and historical context of urban development were used. The space five-dimensionality model is conceptual, its substantiation and interpretation considering the specific tasks contribute to the adjustment of the system condition, its evaluation, and specification of development directions based on the methodological platform of the system approach. The approach that stipulates the identification of urban space elements and their interaction with the view to search for characteristics consistency and compatibility is the ground for substantiation of the urban development cyclicity. The cyclicity phenomenon and life cycle in the development of urbanized systems are analyzed on the basis of the selected examples from Lviv’s history and present. The need for and methods to consider cyclicity in substantiation of architectural-urbanistic decisions are outlined in Lviv’s urban development. The following most important urban issues are emphasized: development of the Poltva valley; lack of system nature in reserving the areas in the suburban zone; aggravated transport problems caused by ignoring the general plan requirements and provisions; lack of system housing policy; engineering-technological problems and suspension of industrial development in the city. General requirements to organization and development of Lviv urban space considering the cyclicity and positive change in current trends are suggested.