Space syntax logic 0f Yazd settlements based on Qanat

The "Space identity" and the effects has on the analysis of settlement patterns and their arrangement by using knowledge fields such as space-arrangement and phenomenology and creating novel concepts, in addition to emphasizing the relationship between natural and human issues, it shows the importance of space in human behavior. This research aims to study the space identity of Yazd (located in the geographical context of central Iran) and its landforms and the impact of the "Qanat" on the fundamental social institutions of Yazd, whit using "Paraphrastic Method". In this research, relying on several fields of knowledge, which is considered a new and creative approach in its own way (including conceptual models such as data-based technique, comprehension drawing techniques, Hillier space syntax technique, urban organic growth and Allometric space ratios), the relationship between theoretical and epistemological foundations of space identity and social behaviors were explained on a special scale. Meanwhile, the technological achievement of the people of this region by inventing the Qanat in maintaining the natural Allometric relationship between the mountain and the catchment of this region, despite major environmental changes, can be considered as one of the empirical intelligences of these people from cognitive understanding of the environment. The results of this study can be expressed as considering the logic of urban structure in this region, which owes to the space identity of Lake Yazd in the Quaternary period and the logic of rural structure and its space identity due to the function of ice rivers and water-ice equilibrium line, The Qanat and its invention in this region is not only an underground channel for transferring water from underground aquifers, but also shows the reading of the landscape by the residents of this region and is considered as a management strategy to preserve and strengthen the environment in almost all major climates.The results of these discussions can be an effective factor in better understanding of the environment and the relationship of the residents and the future of these.