Investigating the Significance of Passive Defense Principles in Urban Renewal Plans of Metropolitan Spaces: Qarchak

The physical growth and development of the metropolis of Tehran over the past few decades has doubled the need to pay attention to the principles of passive defense in the framework of development planning in the surrounding areas. And this attention to the issue of passive defense on the policy and performance of urban plans, especially the reconstruction of worn-out tissue, It had a profound effect. In this regard, the purpose of this study is to Analysis of the Status of passive defense principles in Urban Regeneration Projects of Metropolitan Peripheral Area (Case study: Qarchak city). This research in terms of applied purpose and in terms of the nature and method of research, It's a survey. The data required for the research have been collected by documentary-field method (questionnaire and observation). The statistical population of the present study includes residents of Qarchak dilapidated neighborhoods (Davudabad, Ferdis, Mohammadabad, Mafiabad and Vali Abad) (84855 people), the sample size was determined using Cochran's formula of 383 people. SPSS software was used to analyze the data. The results of t-test in all the studied items according to the average obtained less than number (3), indicate the unsatisfactory status of the reconstruction projects in order to achieve the principles of passive defense in the city of Qarchak. Also, the results of the field study of the area and the study of the documentary sources of the developed plans show the non-observance of the passive defense categories in the urban regeneration plans that have been carried out in recent years (in the target neighborhoods).