How to institutionalize traffic culture in Tehran with passive defense approach

City of Tehran is a metropolis in which critical governmental, and industrial places, and academic centers are located; the establishment of these centers, and have caused traveling and quartering to this big city to be more than other cities; this also lead to population growth and rise in traffic; paying special attention to the importance of reducing traffic and execution of defensive measures to minimize the damage caused by the crisis is of crucial importance. Passive defense is such a case which is done With the aim of Continuation of operations infrastructure, providing critical needs, continuity and facilitating of public service in terms of threats and crises through the accomplishment of Passive defense projects In order to reduce the vulnerability of the critical, vital and important equipment of the state. Considering the population of City of Tehran and high traffic of people and vehicles there, researcher faced the question “how to institutionalize the culture of traffic in Tehran in order that people suffer from less harm in time of trouble. Research is based on descriptive method, and Methods of data collection are library and Field research methods using questionnaire; After summarizing the evidence obtained and analyzing them, the findings show that 55/55% population believe that Classical education of citizens, instructional advertising through radio and television, advertising brochures, Warning signs in traffic compliance with binding regulations with passive defense approach Play a major role And 58/55% also believe that psychological security Factor in the citizens of Tehran, Including comfort, enjoyment of public order, citizens quick and easy access to shelter, proper and quick use of aiding capabilities, and Displacement and resettlement of people in crisis are effective as Components of with passive defense.