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Volume 39, Issue 3 (2024)
GeoRes 2024, 39(3): 387-398 |
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Received: 2024/08/22 | Accepted: 2024/10/26 | Published: 2024/11/26
Received: 2024/08/22 | Accepted: 2024/10/26 | Published: 2024/11/26
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Rezaeeparto K. Vulnerability of the Southern Areas of Tehran City to Earthquake Using Layer Overlay System. GeoRes 2024; 39 (3) :387-398
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URL: http://georesearch.ir/article-1-1639-en.html
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K. Rezaeeparto *
Earth Science Research Division, Research Institute of Petroleum Industry, Tehran, Iran
Abstract (385 Views)
Aims: This study aims to assess and map the vulnerability of southern Tehran districts to earthquakes.
Methodology: The research, applied in nature, was conducted across the southern districts of Tehran (Districts 9 to 20). It followed a developmental approach in three phases. First, confirmatory factor analysis was utilized to develop vulnerability indices. In the second phase, a fuzzy Delphi technique was employed to prioritize these indices. Finally, the most impactful factors influencing urban fabric vulnerability were weighted and visualized as geospatial layers using ArcGIS software (Version 9.2). The vulnerability of the study area was then assessed by overlaying these layers, leading to the development of a final vulnerability map based on seismic-related physical indicators.
Findings: The research, applied in nature, was conducted in 2024 across the southern districts of Tehran (Districts 9 to 20). It followed a developmental approach in three phases. First, confirmatory factor analysis was utilized to develop vulnerability indices. In the second phase, a fuzzy Delphi technique was employed to prioritize these indices. Finally, the most impactful factors influencing urban fabric vulnerability were weighted and visualized as geospatial layers using ArcGIS software (Version 9.2). The vulnerability of the study area was then assessed by overlaying these layers, leading to the development of a final vulnerability map based on seismic-related physical indicators.
Conclusion: The heightened vulnerability of southern Tehran districts is attributed to poor structural conditions, inappropriate land use, ineffective transportation networks, dense and deteriorated urban fabric, high population density, inadequate distribution of medical and emergency facilities, and insufficient access to well-distributed urban open spaces. Addressing these challenges is critical to mitigating potential earthquake damage in urban areas.
Methodology: The research, applied in nature, was conducted across the southern districts of Tehran (Districts 9 to 20). It followed a developmental approach in three phases. First, confirmatory factor analysis was utilized to develop vulnerability indices. In the second phase, a fuzzy Delphi technique was employed to prioritize these indices. Finally, the most impactful factors influencing urban fabric vulnerability were weighted and visualized as geospatial layers using ArcGIS software (Version 9.2). The vulnerability of the study area was then assessed by overlaying these layers, leading to the development of a final vulnerability map based on seismic-related physical indicators.
Findings: The research, applied in nature, was conducted in 2024 across the southern districts of Tehran (Districts 9 to 20). It followed a developmental approach in three phases. First, confirmatory factor analysis was utilized to develop vulnerability indices. In the second phase, a fuzzy Delphi technique was employed to prioritize these indices. Finally, the most impactful factors influencing urban fabric vulnerability were weighted and visualized as geospatial layers using ArcGIS software (Version 9.2). The vulnerability of the study area was then assessed by overlaying these layers, leading to the development of a final vulnerability map based on seismic-related physical indicators.
Conclusion: The heightened vulnerability of southern Tehran districts is attributed to poor structural conditions, inappropriate land use, ineffective transportation networks, dense and deteriorated urban fabric, high population density, inadequate distribution of medical and emergency facilities, and insufficient access to well-distributed urban open spaces. Addressing these challenges is critical to mitigating potential earthquake damage in urban areas.
Keywords:
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