Social and functional prerequisites of topological transformations of the public centers in Irkutsk

In article the open city space in structure of public downtowns which are considered as independent typological objects with the subsequent development of the principles of their systematization and classification with the offer of the perspective directions of development, the principles of the structural and environmental organization and also formation of criteria for evaluation of their design decisions is investigated. In architecture and town planning it is about the spatial organization of the city. The urban community, vital and sacral way of activity of citizens interpret themselves as the architectural organization of city places. The architectural and town-planning topology is a discipline which studies interrelation of the spatial organization of places and structure of activity of citizens, in life, economy, education, sociocultural service and rest. The architectural and spatial organization of such places is a condition and result of the certain acts of activity which are carried out in this place. The urban space assimilates a landscape, will transform, and adapts it for itself, at the same time the landscape forms a topographical and ecological basis of development of the city. The city spatial structure in the main and partitioning’s is congruent the landscape organization of the area.