Physical criteria-traffic analysis and vulnerability assessment in Tehran 21With an emphasis on crisis management

The aim of this study was to analyze the vulnerability of the network in the event of accidents, with an emphasis on crisis management. Evidence suggests that in the event of accidents, the potential for insecurity, social disorder offenses and the offenders increases and the occurrence of both events and social unrest urban traffic management is difficult. In this study, 6 main criteria to determine the network's physical and spatial area 21 Tehran And using the (AHP) Was used to assess the vulnerability of the network in the event of accidents. This study cross - functional purpose Bashd.drgrdavry library and field data (questionnaire) was based on expert opinion. In this study, using some of the capabilities of GIS software to analyze several major objective in the management street networks of crisis events In the 21st District the potential vulnerability of the region based on physical conditions is shown. Based on the output maps and statistical analysis of the results، Town of North Cheetgar, town shahrdari, town Vilashahr,town Esteghlal and town 22 most risky and town Vardavard, town Darya and town Tehransar e gharbi of the safest areas of the Municipality, District21 And other vulnerabilities in the region are relatively low.