Urban Green Drainage Facility Planning and Design Method Based on Multi-layer Fuzzy Decision-making and Cloud Computing

At present, the urban drainage system is facing many challenges, such as increased rainstorm runoff and water pollution. As a sustainable solution, green drainage facilities are widely concerned. To improve the scientific and effective green drainage facilities, multi-dimensional monitoring technology is adopted to construct a monitoring system that includes multiple indicators such as hydrology, water quality, ecological environment, and socio-economic factors. A complete planning and design method is developed by combining multi-layer fuzzy decision-making theory and cloud computing technology. In the experimental results, this method could significantly improve the runoff reduction rate of green drainage facilities, with an average reduction rate of 35.1%, while effectively reducing the pollutant concentration, with an average reduction of 40% in major pollutants. The results show that the method based on multi-layer fuzzy decision-making and cloud computing has high adaptability and flexibility in planning and design, can comprehensively consider multiple factors, optimize design schemes, and improve the comprehensive benefits of green drainage facilities. The research can provide scientific basis and technical support for the sustainable development of urban drainage systems.