Browsing by Author "Hanbuli, Waad ALI"

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How Flooding is Putting Historical Heritage at Risk
(Saudi Digital Library, 2024-08-29) Hanbuli, Waad ALI; Duarte, Natalia Villamizar
Urban Flash Flooding is referred to excessive rainfall for a time period of more than six hours in an urban area which has hard surface development stopping the water to soak in ground resulting in to water running through roads and streets and damaging the overall urban land. As per the recent study by world bank, it has been revealed that urban areas are becoming more vulnerable to urban flooding and the key reasons behind are rapid urbanization, climate change and lack of resilient urban management. Floods in the kingdom of Saudi Arabia is considered the most horrific among all-natural disaster and accounted for 34% of death tolls. Emissions from transportation and urban development significantly aggravate the problem and the city of Jed dah is experiencing extreme flash floods causing loss of lives and damage to property. Considering the ancient importance of the Jeddah Historic area, Al-Bald, it suggests the need to conduct research that aims to revitalize this area with innovative urban design techniques to protect it from this horrific incident while preserving its historic character. Moreover, analysis like flood risk analysis, flood susceptibility analysis as well as rainfall analysis have been carried out to analyse the vulnerability of the study area to flash flooding. The analysis revealed that the area is more likely to be impacted by floods during extreme rainfall events. This demands for a sustainable urban design that increase the sponginess of the area to avoid water accumulation. Resultantly, the multilevel strategy-based design optimization incorporates the sponge city theme. Therefore, including wetland, roof gardens, rainwater garden as well as permeable pavements in the existing design of the historic area, which reduces the area’s overall vulnerability to flood and rain-related calamities and serves as a model for comparable urban design practices. This study advances flood prevention in the realm of urban design by providing a broad framework for architectural and urban design.
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