برنامه ریزی شهری، روستایی و شهرسازی

Analysis of Urban Systems with Emphasis on the Urban Hierarchy:
Spatial Comparisons between England, Ireland and Iran
Ali Sheikhazami
Assistant Professor of Department of Geography , Faculty of Marine Science and Technology,
Islamic Azad University, Tehran North Branch

Cities are places in the last century where become focus of the types of collisions that became these cities are conceived as spatial forms that are resulting of the interaction of network congestion. This paper examines the comparative urban hierarchy, Iran, England and Ireland in 1996 and 2006 years. Content analysis is a statistical method in this study. Information gathered via the Internet and the processing and sorting data, the cities of Iran and the United Kingdom and Ireland, has been studied out with different models primary city and rank-size. Results of this study show that the urban hierarchy in Iran than in England and Ireland urban hierarchy no significant difference in the rate of primary city. But in the urban hierarchy of cities, especially in middle class in cities in England and Ireland is not the middle class up to metropolitan class, but this rise is observed in Iran that one of the major reasons that this type of system, Iran is the country's economic and social structures. England and Ireland country is not balanced in term of enjoyment of networks of cities for population, activity, and amenity, service, and infrastructure and inappreciable deferent perceivable in network of cities the country.

Kay Word:
Urban System, Urban Hierarchy, Iran, England and Ireland