URBAN FLOOD RESILIENCE

Urban flooding is one the most destructive natural and man-made disasters which is causing a significant amount of fatality and financial loss. Over the globe, cities are confronting complex and questionable challenges, including urbanization, heavy rainfall, landslides, climate change, heatwaves, dangers to water supply, and increased flood risk. Among all these causes, the most proven reason is rapid urbanization and the thesis will address all the issues related to urban flooding. Nevertheless, urban flooding is treated as the cause of heavy rainfall without considering the watershed as an interrelated system connected with the development of its domain. The conventional flood control approach needs constant monitoring, persistent corrective measures, and intervention after learning from past events. To achieve a level where even the city will get flood still it will able to run off the excess water itself. This system requires progressively expensive investment to build or retrofit the structure which is competent to quarter the runoff water collected from urbanized areas. However, these systems are unable to prevent a city from high flood destruction globally. Therefore, there’s an ought to storm water management procedures and start following the risk management approach, which contemplates the cost analysis. Additionally, considering all these factors need to focus on the major issue that is urbanization, uncontrolled growth of the urban sector, and climate change. To tackle the growing threats of urban flooding, for cities, it is a necessity to mitigate the integrated Urban Flood Risk Management to achieve urban flood resilience in an uncertain future. The thesis research helps to understand the problem and the source with the help of case studies from many cities. It also focuses on the urban policies developed by developed and developing countries to overcome the risk of urban flooding. This thesis report looks into all the aspects which contribute to urban flooding such as urbanization, climate change, land use land cover, expanding built-up area, encroachment, run-off retention, permeable and non-permeable surface, and structural and non-structural urban flood resilience policies.