analysis of creation causes on informal settlements with using path analysis model, case study: shadgholi-khan town of qom city

this study is a descriptive - survey and objective evaluation analysis of creation causes on informal settlement shadgholi-khan town of qom city. answer questionnaire by 200 protector of household in shadgholi-khan tow, economic, social and physical variables affective creation of informal settlements in the shadgholi-khan its spatial and local effects are investigated. research findings show that ten factors influence as important factors creation of shadgholi-khan, and using regression techniques factor affecting each of these factors and identified using path analysis model of how these factors influence has been analyzed. according results of path analysis model, it became clear that in creation of shadgholi-khan two factors were before the migration, including initial ownership, migration reasons, immigration or not immigration and before job and after factors of migration included current job, document ownership, residence reasons, creation license house, income and years of migration is the highest influence. all coefficients of elements and the effects of various independent variables affect each other and separating them, it was shown that the rate of immigration before 56.6 percent and the rate of immigration after 43.4 percent were effective in creation of shadgholi-khan. now if planners and policy makers seek to solve problems arising from informal settlements in cities, should its roots search in the factors influencing before migration and villages, and after solve current root, do solve problems of informal settlement.