تحليل ساختار فضايي متروپليتن هاي ايران (نمونه : بازتاب تفكر پوزيتيويسم منطقي بر مادرشهر تبريز)

One of the important aspects of urbanization in Iran is the rapid physical growth of its metropolises. The most typical characteristic of metropolises in our country is their complicated and compound structures and the interaction and formulation between their different related and segregated parts since hetrogenious and unbalanced structural systems of metropolises have made them functionally unable in offering urban services and have destroyed their structures. The subject discussed in this article is exploring the factors which have made different metropolitan areas unstable. The study of status of urban areas has been conducted based on the statistical data obtained from samples and investigated areas of Tabriz and in relation to spatial-local demonstrators of development. The following results were obtained from the results of correlation between variables and total rank of each area of demonstrators regions and are respectively classified from the point of stability and unstability: region 2, region 8, region 7 (sheet 28), region 4, region 7 (sheet 27), region 3, region 1 (sheet 33), region 1 (sheet 25). In fact, the hetrogenouity of physical structure of Tabriz is the result of interaction between economical-political and executional factors in the landscape of the city. This has been reflected in the texture of the city and has created hetrogenious spaces.