ZHONGWei,ZHANGJun-peng.Multi-objective Optimization Design of LID Facility Layout with NSGA-Ⅲ Coupling[J].China Water & Wastewater,2025,41(13):131-136.
Multi-objective Optimization Design of LID Facility Layout with NSGA-Ⅲ Coupling
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第41卷
Number:
第13期
Page:
131-136
Column:
Date of publication:
2025-07-01
- Keywords:
- urban flooding; layout of LID facilities; runoff pollution control; cost control; NSGA-Ⅲ algorithm
- Abstract:
- This study optimized the layout of urban low impact development (LID) facilities to address the issues of urban waterlogging and water pollution caused by sudden and intense rainfall events. The NSGA-Ⅲ algorithm was employed to achieve multi-objective optimization for runoff coefficient control, runoff pollution control, and cost control of the LID facilities layout under heavy rainfall scenarios. The optimal solution from the Pareto-optimized solution set was then integrated into the SWMM model for simulation. An example-based study was conducted on the occurrence of sudden heavy rainfall in the Sino-Singapore Tianjin Eco-City. The findings indicated that the optimized LID facilitied layout could decrease the pipe channel water depth by 18.6%, with the comprehensive runoff pollutants reduction rate of 41.4%. Under the same total expenditure cost, the optimized LID facilities layout further reduced runoff pollutants emission by 5.82%. This approach can effectively address urban waterlogging and runoff pollution issues.
Last Update:
2025-07-01