Explanation of Effective Factors on Formation of Homelessness in Tehran Metropolitan Area

Homelessness is a pattern of habitance which does not follow the essential standards of housing. This type of habitance forms based on numerous factors; such as personal and structural factors. The aim of this research is identification of structural factors effective on homelessness formation in Tehran metropolitan area. The methodology of this research is practical, based upon the aim and descriptive-analytical, based upon the method and nature. Considering the aims of the research, at first, the factors affecting homelessness formation were extracted out of previous studies and with emphasize on right to city approach (which is the main approach of this research) and categorized into three political, economic, and social groups and into 15 criteria. These factors were written as a questionnaire and were asked from 20 experts (university faculties) to fill it. Through Fuzzy SWARA, which is one of the new methods of MCDM, and then Fuzzy ARAS, each of these factors and criteria were weighted and prioritized, respectively. The results obtained from the Fuzzy ARAS method showed that political and economic factors are the most important factors in homelessness formation by 0.4089 and 0.3909 weights, respectively. Among 15 criteria, the land and housing allocation policies (political factor), commodity land and housing under allocation approach (economic factor) and new urban policies (political factor) and demographic composition (social factor) were the most important criteria effective on homelessness formation in Tehran metropolitan area