Abstract:Aiming at a sponge reconstruction scheme of a municipal road in Sanya City, it is pointed out that the current road situation, the surrounding environment, the overall investment and other factors should be fully considered during the design. The sponge indicators should be coordinated according to local conditions. And at the same time, SWMM model is used to simulate the reconstruction scheme. The simulation results show that the goal of 50% annual runoff control rate can not be achieved only by the sponge reconstruction of road. It is necessary to rely on the wetland park to coordinate the sponge indicators. The sponge reconstruction scheme can effectively reduce the rainwater runoff and the runoff peak. The drainage standard of rainwater pipes can be indirectly improved from 2 a once to 3 a once.
