Analysis of the Physical-Spatial Resilience Pattern Affected by Environmental Hazards in Tehran Metropolis(Case study: Comparative Analysis between of Regions 2 and 12)
In Academic literature has recently emphasized that why urban resilience is different from urban sustainability. Urban policymakers, on the other hand, use the terms almost interchangeably. In this study by analyzing the pattern of physical-spatial resilience; Factors affecting environmental hazards such as earthquakes, subsidence, etc. are studied in areas 2 and 12 of Tehran.
This study is an applied research that has been done with case-analysis method and quantitative approach. Due to the nature of the data is descriptive. To achieve the objectives of research and analysis of physical-spatial resilience pattern affected by environmental hazards in Tehran metropolis including subsidence and earthquake, the dimensions studied in 13 indicators including base price (square meters), material, construction year, building age, building skeleton, number of floors , Degree of concentration or dispersion of residential land use, grain size, permeability, total area of uses (green and open space) and area of residential land use in spatial and physical part) and (degree of concentration or dispersion of population, residential clusters and open and green spaces for population based The majority of residents in the neighborhoods were extracted for the geographical direction of population distribution in the social sector (based on land use studies of the current situation). To evaluate and analyze spatial and social patterns, the colonial competition algorithm in Matlab a2019 software environment and to spatialize the studied indicators, the method (Tracking Analyst Tools) in the network analysis process (Network Analyst Tools) in ArcGIS software environment has been used.
Due to the location of District 12 in the historical context and the concentration and density of the population in the focal axes with regional performance, it shows more vulnerability. In relation to the criteria of population density, granulation as well as the skeletal condition of buildings; Overall, Zone 2 shows a better situation. Although the population density in both zones is the same despite the larger population and size of Zone 2, it shows lower resilience due to the flood of floating population visiting and living in Zone 12.
Due to the erosion of buildings and low space permeability, the pattern of spatial distribution of the population and the factors affecting the physical-spatial ruptures in Zones 2 and 12, the results show that the pattern of distribution and fracture rupture in neighborhoods are different in Zone 12. Indicates a more unstable situation.
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