Definition: urban planning system - a set of spatially organized and interrelated material elements - technically developed territories, buildings and structures, roads and engineering structures, together with the natural components that form the living environment of society, at different territorial (scale) levels.

Territorial levels: settlement system in the territory of the continent, country, region, district (group of districts), agglomeration, city.

The urban planning system is a natural-man-made (natural-anthropogenic) system and actively incorporates natural components.

To describe the processes occurring in urban planning systems, use such concepts as: frame and fabric .

Definition: the framework is a relatively unchangeable, time-stable basis of the spatial planning organization of the urban planning system (urban planning, ecological frameworks, see fig. 39, 40).

Urban frame. As applied to the settlement system, these are the main (backbone) transport and communication corridors and large settlements. The zone of influence of such corridors is the most developed and populated. As applied to the city, these are the main axes and nodes of the transport infrastructure with the territories occupied by the most important objects of the city, capital construction.

The urban frame fixes the geometry of the city plan and predetermines the trends of the territorial development of the city.

Fig. 39. The framework of the planning structure of a large city.

Definition: fabric or “filling” - areas that are less intensively developed (residential or industrial areas, recreational areas and forests, undeveloped areas).

The skeleton develops due to the absorption of tissue.

Fig. 40. Proposals for the development of Novosibirsk, prof. G.N. Tumanik, 2007