The study is focused on the topic of life satisfaction of citizens in Tehran (Iran). The objective of the current study was to identify the predictive environmental and social determinants of life satisfaction. To explain the statement of the problem and form the theoretical framework, related sociological and psychological views were used. In the introduction the concept of life satisfaction is described and measurement of life satisfaction in various studies are summarized. In the empirical part a questionnaire survey is conducted that tries to determine life satisfaction of Tehran citizens (N = 385). The statistical population in this research was all citizens over the age of eighteen years in the city of Tehran and the research was conducted in 2017. Findings indicated that comparing the mean of variables shows that personal satisfaction and health status are higher than social satisfaction and justice. It is found that there is a high correlation between sense of security and life satisfaction. However, variables of sense of security and health status account for around 34% of the variations in life satisfaction. Findings of this research have important implications for making policies to improve subjective well-being through increasing the safety level and community planning.

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This study aims to mapping and spatial analyzing of disability in the Khuzestan Province, Iran by using Geographic Information System. A total of 82, 674 disabled people information were included in the study. The 40 informational fields have been classified into 11 main categories. The Geographically Weighted Regression (GWR) technique were used for mapping and discovering the relationships. The results show that, 68.87% of the disabled people were urban residents. The disability rate of cities ranges from 10.54 to 43.05. As many as 63.43% of the disabled suffered from severe and extremely severe disabilities. About 60.59% of disabled were males 65.17% were married. In terms of educational level, as many as 87.61% of them had educational levels lower than junior high school. In terms of occupational status, about 74.24% of them were unemployed. There was a positive relationship between poverty and disability rate in 70.37% of the counties. Moreover, there was a positive relationship between population and disability ratio. In terms of disability variables, a significant difference was observed between different counties. The output of GWR method indicates that there was a positive and significant relationship between population and poverty level with disability ratio (Std. Dev. ≥ 0.05). However, the severity of this relationship varies in different counties.

Urban green infrastructure (GI) approach supports building resilience, mitigating greenhouse gases emissions and adapting to the impacts of climate change. However, the development and maintenance of GI in semi-arid cities can be hindered by limitations such as available water resources. In this article, we study priority areas for GI development schemes at the neighbourhood scale through a seasonal vulnerability framework with the case study of two urban districts in the semi-arid city of Tehran, Iran. Heat mitigation and stormwater runoff control are considered as the main objectives of GI development. The results show that priority areas have high levels of land surface temperature, impervious surfaces and population density, with a low proportion of vegetation land cover. The necessary GI services vary in different local climate zones (LCZ) during the year. Although heat mitigation is required in both compact and open LCZs, the runoff control service of GI is also needed for neighbourhoods with compact midrise settings. To promote sustainability at the neighbourhood scale, the findings of the study can be used for initiating nature-based solutions and GI development projects.

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