ARTIFICIAL PLANNING EXPERIENCE BY MEANS OF A HEURISTIC CELL-SPACE MODEL - SIMULATING INTERNATIONAL MIGRATION IN THE URBAN PROCESS

We suggest considering the city as a complex, open, and thus self-orga nized system, and describing it by means of a cell-space model. A cent ral property of self-organizing systems is that they are not controlla ble-not by individuals, nor by economic, political, and planning insti tutions. The city, in this respect, is complex and untamable. lnabilit y to recognize and accept this property is one of the reasons for the difficulties and problems of modernist town planning. The theory and m odel we present are built to describe the urban process as a historica l one in which, given identical initial conditions, each simulation ru n is unique and never fully repeats itself. From the point of view of urban policy and planning, our heuristic model can guide decisiommaker s by answering the following question: 'given the initial conditions o f an inflow of new immigrants (that is, from the ex-USSR), what possib le urban scenarios can result, and what are their global structural pr operties?'.