Application of GIS and SWMM model to assess urban flooding in Hung Phu 1 Residential Area of Cai Rang District

Abstract

Abstract: Cai Rang District, established in 2004 under Government's Decree No. 05/2004/ND-CP, is a fast-growing urban district in Can Tho City. In recent years, the construction land areas in this district have expanded at a rapid rate, showing that the urbanization level in this region is quite strong. Besides urbanization, Cai Rang District also faces three important environmental problems: climate change, land subsidence, sea level rise. The combination of these problems makes urban flooding in this inner-city district quite serious. One of the areas often affected by urban flooding in Cai Rang District is Hung Phu 1 Residential Area. This paper introduces the preliminary results of the application of GIS and SWMM model to assess urban flooding in Hung Phu 1 Residential Area. The research has shown the main features of urban flooding in the study area, including the degree of flooding, time of flooding, flood volume, flow velocity and locations that are often flooded. The obtained data is an important basis for developing suitable flood reduction solutions and improving the quality of life of the residents in Hung Phu 1 Residential Area.
Keywords: urban flooding, GIS, SWMM model, Cai Rang District, Hung Phu 1 Residential Area.