Design Analysis of Noshabad Owi Underground Complex from the Perspective of Passive Defense

Defense architecture is one of the hidden values of historical contexts and passive defense has different criteria based on the type of use and different dangers in historical periods. Today, with the advancement of technology and the change of dangers, the principles of passive defense have also changed, but the initial measures in historical monuments are comparable to the new and modern principles of passive defense. Noshabad Owi Underground Complex, as a 1400-year-old historical site of which only a limited part has been identified so far, is an example of past defense architecture and allows the study of passive defense principles. The purpose of this research is to identify the architectural design in the first part and to analyze the passive defense arrangements in the Owi underground complex in the second part and to investigate how these components are used in the design of architectural elements and its spatial organization. In this article, using descriptive-analytical method and using library resources and field perceptions, while introducing and recognizing the architectural design of this underground complex, the principles of passive defense have been studied and its components and aspects using different sources. Has been extracted and analyzed. The results show that in this underground complex, various techniques and measures in the field of passive defense have been used in the fields of architecture, structures and facilities in accordance with the type of hazards and equipment of the past, and this is the intelligence of the predecessors. It shows us and complete knowledge of the general principles of passive defense from decades ago.