Title |
Optimal Location of Best Management Practices for Storm Water Runoff Reduction |
Authors |
장수형 ( Su Hyung Jang ) ; 이지호 ( Ji Ho Lee ) ; 유철상 ( Chul Sang Yoo ) ; 한수희 ( Su Hee Han ) ; 김상단 ( Sang Dan Kim ) |
Keywords |
Best management practice; Hydrologic model; Optimization; Storm water runoff reduction |
Abstract |
A distributed hydrologic model of an urban drainage area on Bugok drainage area in Oncheon stream was developed and combined with a optimization method to determine the optimal location and number of best management practices (BMPs) for storm water runoff reduction. This model is based on the SCS-CN method and integrated with a distributed hydrologic network model of the drainage area using system of 4,211 hydrologic response units (HRUs). Optimal location is found by locating HRU combination that leads to a maximum reduction in peak flow at the drainage outlet in this model. The results of this study indicate the optimal locations and numbers of BMPs, however, for more exact application of this model, project cost and SCS-CN reduction rate of structural facilities such infiltration trench and pervious pavement will have to be considered. |