Rapid urbanization and urban growth are complex problems in countries, such as Iran. The major goal of current research is to determine the spatial-temporal pattern of urban growth in Tehran megapole. This research can provide a background for more informed planning. Current research used historical maps and satellite images to determine the urban growth patterns for Tehran megapole for the time period 1921-2011. Spatial metrics were used to analyze the spatial-temporal pattern of urban growth at two levels: Tehran's Megapole as whole and within the concentric zones in this Megapole. Results show that urban growth rate in Tehran megapole area can be divided into three major periods: (1) rapid growth rate , (2) very rapid growth rate (1976)(1977)(1978)(1979)(1980)(1981)(1982)(1983)(1984)(1985)(1986), (3) slow and consistent growth rate . Results also show that urban growth in Tehran city follow tidal waves pattern and consequent phases of growth. These tidal waves are moving toward external edges of Tehran city. This research was an attempt to apply a remote sensing methodology for urban planning purposes. Also, it was an attempt to determine the pattern of urban growth in Tehran megapole which was not determined before.
Rapid urban population growth and the lack of effective policies in order to desired population settlement, has encountered Iran's major cities with multiple social, economic and environment problems. Physical expansion of cities in order to settlement the increasing population, causes the formation of new textures surrounding old urban textures. In the new textures, urban housing is formed with the modern approach and least logical connection with common practice in the old textures. Therefore, the main objective of this paper is to evaluate the housing quality and identify strengths and weaknesses in old and new urban textures to improve the quality of urban housing in Iran. Household survey were conducted to collect the needed data in the old and new textures in Khorramabad city. Results showed that the satisfaction level of housing quality in new texture is far more than old ones. The highest satisfaction level in both textures are related to housing basic facilities domain. However, satisfaction level of this domain in new texture is much greater compared to the old texture. The lowest level of satisfaction is related to the quality of neighborhood domain in old texture and to the access to public services domain in the new one. Results from the factor analysis to identify the dimensions of housing quality in old and new textures illustrated that housing quality is a multidimensional concept, studying of which requires considering all dimensions and aspects.
By 2015, there were more than two million Afghan immigrants, both legal and illegal, living in Iran. Although, over the recent years, there has been a growing interest among social scientists, policymakers and national and international institutes in investigation of the quality of life (QoL) of immigrants, research on the QoL of Afghan immigrants in Iran is still in its infancy. The present article aims to study the QoL of Afghan immigrants in Iran and identify its influential dimensions and factors. This study relies on a perception survey of 347 Afghan households in Tehran city. Based on the 5‐point Likert Scale, the mean of overall life satisfaction of the Afghan immigrants was found as 3.22, which shows satisfactory QoL of Afghan immigrants in Iran. The highest level of satisfaction, with a mean value of 3.96, is related to public transport access followed by satisfaction in social relations with friends, relatives and fellow immigrants living in Iran, and access to cultural centres such as the mosque, library, and cinema. The lowest level of satisfaction, with a mean value of 1.90, was seen at border services like entry and exit from Iran, followed by the Iranian government policy towards Afghan refugees, and saving abilities. In addition, the most important predictors of immigrants' QoL include indicators of health, security, work status, and income, which are closely interrelated with the main reasons for Afghans' immigration to Iran. After immigration to Iran, the QoL status of the immigrants has improved significantly, especially in the fields of security and education; nevertheless, their employment in jobs with low skill and income, along with the decrease in the economic growth of Iran over the recent years, have caused problems for the economic and financial status of the immigrants. The results and findings of this study will be useful for designing and implementing plans and policies necessary to improve QoL of Afghan immigrants in Iran.
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