Dimensions of urban resilience in crisis conditions in order to reduce spatial discontinuities (Case study: Districts 2 and 12 of Tehran)

Recent academic literature has emphasized why urban resilience is different from urban sustainability. Meanwhile, urban policy programs use these terms almost interchangeably. In this research, due to the dilapidation of the building, the lack of porosity and low spatial permeability, the spatial distribution pattern of the population, the factors affecting the physical-spatial discontinuities in the level of the 2nd and 12th districts of Tehran metropolis are investigated. The current research is in the category of applied research, which was conducted with case-analytical method and quantitative approach. Considering the nature of the data and the impossibility of controlling the behavior of the effective variables in the problem, it is also non-empirical. In order to analyze the dimensions of resilience, first of all, 21 study criteria extracted from theoretical foundations, including statistics and documentary information, census sources, plans and available documents, including studies of detailed plans and statistical districts and blocks of 1396 Tehran metropolis, were investigated and analyzed. After extracting and classifying the studied criteria, they were operationalized and standardized based on FCM and K-Means clustering methods. Based on this, Excel, Arc GIS, Matlab and Eviews software were used for data analysis. The results of this research, while examining the difference of physical and spatial dimensions in the resilience of the regions, confirm the instability and increase of spatial discontinuities at the level of the studied localities. Among the localities of region 2, the localities of Shahrek Gharb, Ivanek, Pardisan of Shahrek Homa, Poonk and Islamabad were evaluated with regard to their new construction, proper permeability, spatial density and relatively optimal population distribution with moderate resilience status. Among the localities of region 12, Bazar, Arg-Pamnar, Ferdowsi and Imamzadeh Yahya were assessed as the worst resilience cluster due to the dilapidated buildings, low spatial permeability, spatial concentration of the population, and increased physical-spatial discontinuity.