Comprehensive Evaluation of Urban Flood Control Planning Projects

Social, economic, environmental and technical factors involved in different levels must be taken into account in comprehensivelyevaluatingurban flood control planning projects. The coupled hierarchical and gray model based on analytic hierarchical process and grey systemtheoryis suggested after the formation of the hierarchical structure modelfor urban flood control planning,by which the projects are comprehensively evaluated in one dimensional space through translatingthe urban flood control planning evaluation multi-goal system into a single-goal problem. The results of a case are satisfactory, so the model established in this paper is feasible and resultful, and can be widely used in water resources system engineering practices.