The phenomenon of Petrogradsky Island as a mirror of the urban planning structure of St. Petersburg
The thesis of the three main constituent parts of the historical center of St. Petersburg is developed. The evolution of the development of Petrogradsky Island is considered amidst the development of the urban planning structure of the entire city. The indicator of the land development process is the infrastructural saturation level. The nature of the use of territorial resources and the size of the associated investments are taken into account. The connection of the urban fabric with the transport-planning framework, the functional zoning of the territory, the size and nature of the building of the allotments are taken into account. The results of the analysis expand the perception of the heterogeneity of the urban planning structure of St. Petersburg and can be considered as a basis for a differentiated approach to the use of the historical heritage. The role of systemic unity of planning and investment decisions for the development of the urban environment is emphasized, both in its historical aspect, and for modern practice.