S. Barraud et al., Selection aid of alternative techniques in urban storm drainage - Proposition of an expert system, WATER SCI T, 39(4), 1999, pp. 241-248
The choice of BMPs in urban stormwater drainage is most often made with a p
oor understanding of site constraints, and of the possibilities afforded by
these techniques. This leads to extra costs and malfunctioning. To reach f
easible choices, we have formalised a decision-making process, taking into
account multiple criteria and the large number of partners involved in that
kind of process. We have then developed a decision-aiding procedure split
up into two phases: an elimination phase permits us to exclude solutions wh
ich are identified as unworkable according to site considerations and a dec
ision phase which allows the decision makers to compare and at least to cho
ose a scenario built up with feasible solutions. This paper more particular
ly deals with the first phase. This elimination phase, which is suitable fo
r an expert system type of representation, has been implemented using a sof
tware called DELTANOE constructed for operational design issues but also fo
r pedagogic purposes including conception, realisation, maintenance and man
agement recommendations as well as sketches and photo examples. After prese
nting the context and basic principles of the elimination phase, we present
the way the associated tool has been constructed and validated. (C) 1999 I
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