Iran, s Network Cities with Emphasis on Spatial Interpretation of Mony Orders

objective is to invenstigate network relationships among cities with population over 100/000. This study, is mainly based on principle component analysis. Furthermor, in order to present Tehran, s overall dominance over the rest of citis, the reserchers applied both dominant flow analysis as well as spatial interaction models. 2- Theoretical Bases The Theoretical farmwork indicates the compatibilily and comparison between urban hierarchy as opposed to network system. Dilman (1993), Comagnu(1994), and Baten (1995) are the major proponents urban network approach. They argued that the links between urban settlements are besed on complementarity and " participation" rather than thresholds, demand, and distance. It is further concluded that this links dictate kind of vertical urban hierarchcal relations based on horizontal urban networks. That is, theoritically speaking, urban hierarchical relations in fact is complementary with urban network relations. Pamin (1993) further argued that urban networks may be established based on local welfair.