عنوان مقاله [English]
Organizing and planning the passive defense considerations in urban environment which centralize the highest percentage of economic, social, political activities and etc. is very important in reducing damages to the urban environment. Identifying the urban area threats, their prioritization according to the most effective threats on the urban passive defense considerations in reducing vulnerability rate is the issue that has been explored in this study. In this research, the required literature was prepared through library study, in-depth interview and then the questionnaire was arranged and distributed in statistical population. The results of the questionnaires analysis by SPSS software confirmed the urban threats prioritization. Accordingly, the threats related to “threat of critical infrastructures and political and military decision-making centers of country in the urban environment" , " threat of urban services infrastructures such as power grid, water, gas and telecommunication networks " , " threat of radar systems, alerts and air defense systems settled on the urban environment" , " Disconnection of national media, radio, television and written media in public notification " and "Disturbance in production and distribution system of bread, medicine and fuel" have been prioritized according to the effectiveness degree of passive defense considerations.