Territorial outlines of cities as a projection of time in space of the Earth
The author considers scheduled outlines of cities to be a projection of time to the surface of the Earth. In linear coordinates of city plans the card of spatial history of the city is enciphered.. It is possible to decipher this card by means of creating a geometrical model of the structured space. By the example of St.-Petersburg stages of spatial development of the city territory in course of time are illustrated.