Abstract: | Software packages developed for the design of urban storm drainage networks allow several solutions to be proposed for the same problem. It subsequently falls to the decision maker to choose which solution to adopt. The question is to compare the propositions according to economic, ecological, functionality and maintenance criteria. A tool which can be applied to this problem is presented in this article. This tool integrates multicriteria, fuzzy sets and the base of rules concepts. One of the principal difficulties stems from the fact that the evaluation of some of the criteria needed is not straightforward. Thus, a method which helps to evaluate one of the criteria (the global functioning of a storm drainage network) was defined. This method was first tested and validated on imaginary cases and subsequently applied to a real case: the restructuring of the urban storm drainage network of the city of Annequin. Then, on the basis of this experiment, the knowledge about the use of such a tool in an environment more complex than a laboratory was improved. |