Evaluating the Effective Environmental Factors on Sense of Security in Informal Settlements of Hamedan

Informal settlements due to the specific economic, social, and physical characteristics are known as one of the hot spots and unsafe areas in cities. Therefore, in this research we try to recognize the most important physical problems in informal settlements that influence on residents’ security. In this research, five informal settlements in Hamedan are as case studies that we extracted perception of their residents about environmental security parameters. Research method is analytic- expository and based on documents studies and field survey. We gained Theoretical framework through library studies and then extracted security parameters. In order to assessing security based on residents’ perception, we use factor analysis and linier multi-variable regression methods. Thus we designed questions based on five-level Likert method and prepared the questionnaires. We considered 400 questionnaires based on the Cochrane sampling test in order to validity for SPSS analysis (The number of questionnaires are 80 for each neighborhood). At the end, the variables are classified in 5 environmental security factors. Sum of aggregation variance of 5 factors are equal 62.22. These factors include: “Strange Abate”, “Texture Discipline”, “Socialization”, “Welfare Facilities”, and “Maintenance & Function”. Research findings show Manouchehri neighborhood has tangible strength than other neighborhoods and Dizaj neighborhood has tangible weakness than others. Also, we can define some priorities for each neighborhood; thus priority of Hesar neighborhood is “Socialization”, priority of Khezr is “Texture Discipline”, priority of Dizaj is “Texture Discipline” and “Maintenance & Function”, priority of Mazdaghineh is “Welfare Facilities”, and priority of Manouchehri is “Socialization”.