Investigating the Principles of Non-Active Defense in the View of the Historical City of Tabriz During the Qajar Era

The most important factor in creating people's well-being and a sense of security in public and private   urban spaces is to observe the principles of passive defense in designs, which is a solution to improve the quality of life in communities and creates a special possibility to save the lives of people in the community when danger occurs. It slows down and improves the performance of the system and reduces the vulnerability and improves the safety level of the society. The traditional architecture of Tabriz and its    location on the communication route of the Silk Road, having a special social and cultural, economic and political position, make it one of the cities under threat in the previous era. And after Islam, it has made it mandatory to ensure the safety and security of citizens against possible attacks and dangers in the designs. It is in the way of implementation and observance of its factors in urban planning and native architecture of old Tabriz. In this research, information has been collected in order to know the solutions of traditional architecture by reviewing the literature and field observation. The results indicate that the geometry of the building, location, location and number of openings, how to access and predict safe spaces as a multi-functional space for every building in times of peace and war are among the important components in optimizing building architecture and traditional architecture. And the architecture compatible with the   climate is not a factor from the point of view of defense.