The Analysis of Physical-Spatial Resilience of the Coastal Cities Against Floods (Case Study: The Deteriorated Urban Fabrics of the Coastal City of Dayyer)

Document Type : Research article - extracted from the dissertation

Authors

1 PhD student, Department of Geography and urban planning, Faculty of Literature and Humanities, Shahid Chamran University of ahvaz, Ahvaz, Iran.

2 Professor, Department of Geography and urban planning, Faculty of Literature and Humanities, Shahid Chamran University of ahvaz, Ahvaz, Iran.

3 Associate Professor, Department of Geography and urban planning, Faculty of Literature and Humanities, Shahid Chamran University of ahvaz, Ahvaz, Iran.

10.22124/gscaj.2024.25036.1256

Abstract

The consequences of climate change are increasingly threatening cities and villages in various ways. Due to their location at the intersection of land and sea and the presence of significant human and economic resources, the coastal cities face greater threats from such hazards, especially floods. The existence of deteriorated fabrics also increases this vulnerability. This research aimed to evaluate and analyze the physical resilience of the deteriorated urban fabrics in the coastal city of Dayyer against urban floods using a descriptive-analytical approach. For data analysis, the AHP analytical model was used to weigh the criteria and assess their importance, the SAW fuzzy method was employed to evaluate the final physical resilience, and GIS software was utilized for map plotting. According to the results, among the examined criteria, "elevation above sea level" and "distance from the shoreline and waterways" are the most important ones, with weights of 0.271 and 0.227, respectively. Additionally, based on the findings of this research, the deteriorated fabrics in the coastal city of Dayyer has different levels of physical resilience. The areas in the "Bāzār," "Kheniyā," and "Arabs" neighborhoods have the lowest physical resilience, while the "Bāgh" neighborhood, due to its distance from the sea, higher elevation above sea level, and newer buildings, has shown greater physical resilience. Ultimately, based on the results, recommendations for improving the physical resilience of the deteriorated fabrics of the coastal city of Dayyer include, preventing urban expansion in low-lying and coastal areas and accelerating the renovation and reconstruction of these areas.

Highlights

Urban flooding is one of the main consequences of environmental hazards and climate change in coastal areas.

-The level of physical resilience of deteriorated urban fabrics in coastal cities against floods is low.

-Urban expansion in low-lying coastal areas and those adjacent to the shoreline reduces their physical resilience against flooding.

-Presenting a practical framework for assessing the physical resilience of deteriorated urban areas against flooding for managers and decision-makers in coastal cities.

Keywords

Main Subjects

References

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