Analysis of Spatial-Physical Locate of the Knowledge base In contrast to Traditional Functions in The City of Tehran

The Research a head with dedication to the process of economic globalization and its spatial_ physical Necessity in Cities, in the first step, address to review the existing literature on the logic of spatial scateration of urban functions in the era of Knowledge base economy and structure of polycentric cities, and in the second step, with recognition to the restructuring necessity of the urban functions- as a part of power increase in global competition-, address to the review and analysis of this process and indexes in the city of Tehran. In this case, by using different software and Computational methods (such as: Janks, AHP_Phazzy), identified the formation of urban functions in Tehran and, comparative locate study of traditional and Knowledge base functions with the overlay operation. The case study, is the metropolitan area of Tehran's and statistical society, more than 6,500 companies offering advanced producer services in 7 levels and all of the traditional functions in the city. The result of research focused on centralize structure and, mono_centric in both of selection functions and, also powerful adaptation(more than 70 per), in this tow group locating. Also, it can be seen the transferring function core from region 12 to the boundary of the 6 , 7 and, part of region 3. This means a transport of the functional hub toward the northern half of the city despite maintaining a centralized structure.