Analyzing effective factors on urban growth management focusing on remote sensing indices in Karaj, Iran

Abstract

Although the growth of cities is a positive phenomenon, but the problem is an uncontrolled and unbalanced growth of cities. In order to control this growth, different policies in different countries have suggested. These policies don’t always have the same content and they can have different effects on the city and its surroundings. Like many developing countries, Iranian cities rapidly growing in terms of population and physically expanding at a high rate. This research investigates the factors that account for urban growth management in Iranian cities. Karaj metropolis has been studied as a case. Karaj has been experiencing significantly higher rates in the total area of urban environments mostly due to its socioeconomic attractions over four decades ago. To evaluate the dimensions of urban growth management in Karaj city, Factor analysis was used in form of classified sampling. Furthermore, in order to describe the variables in the districts of Karaj city, the COPRAS method is used. Finally, differences between urban area and indices of built-up area were analyzed. Results show that five factors effect on urban growth management in Iranian cities; policies and rules factor, physical, economic, social and environmental factors.