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FP5

DAYWATER Résumé de rapport

Project ID: EVK1-CT-2002-00111
Financé au titre de: FP5-EESD
Pays: Germany

DayWater prototype of stand alone vulnerability screening tools

One of the negative effects of urbanization is the overloading of the city sewer system. To solve this problem, on-site storm water infiltration proves very promising due to its near natural characteristics and multiple effects on the drainage of stormwater runoff in urban areas. However, the judgment of whether a local area is appropriate to be drained in this way and which infiltration measures are optimal is rather complex and involves analyzing a set of influential factors. This judgment depends on not only relevant theoretical considerations, but also a large amount of practical experience and the availability of relevant data, as well. Such a judgment is an unstructured problem and relates to changeable knowledge.

To fulfil this task, a so-called expert system, or knowledge-based system, is a possible tool. One of the advantages of an expert system is that it provides automation of expert-level judgment. This is extremely helpful when an expert-level judgment is needed repeatedly for a large amount of cases, like in the planning of on-site stormwater infiltration systems for an entire city or a river catchment.

Within DAYWATER an expert system tool called FLEXT was developed and applied within the Wupper case study, Germany. Compared with other expert systems the combination with a Geographical Information System (GIS) is new.

FLEXT can be used as a vulnerability screening tool as well as a tool for developing scenarios. Both possible applications are major tasks of river basin management, which is becoming more and more important due to the European Water Framework Directive.

Informations connexes

Contact

Heiko SIEKER, (Director)
Tél.: +49-3342359515
Fax: +49-3342359529
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