Author(s): Yanfen Geng, Jiandong Mao, Zhaowei Wang
Linked Author(s): GENG YANFEN
Keywords: Hydrodynamic model, urban road, Low Impact Development (LID), coupled model
Abstract: With the rapid growth of impervious paving surfacing in the urban area, many cities are facing the inland flooding risk due to the global warming. To increase the resilience of cities under extreme storm weather, the design philosophy name Sponge City was has been recently adopted by many China's cities during the upgrading of old areas or planning the land use of new districts. Thus, It it is thus] of paramount important to evaluate the hydrological process from macro to micro scale. In this paper, a hydrodynamic model coupling ground runoff and water movement in drainage facilities was is presented to simulate the hydrological process of the Shiyang road near Outer Qinhuai river in Nanjing. The results indicate that LID-type road could decrease the depth of surface runoff and narrow the ponding area due to the insufficient drainage capacities along the road, and the runoff coefficient of the zone is decreased about 10% by the implementation of permeable pavements, which means that LID-type road could be a sufficient method to mitigate water-logging and urban flood in urban road. To It can be concluded, that as an ongoing research, this paper has demonstrated demonstrates the capabilities of the coupled model in quantitatively evaluation of the LID-type road impact on hydrological process of small urban area with the, improvement will be made for the investigation of large-scales
Year: 2017