Journal
WATER SCIENCE AND TECHNOLOGY
Volume 64, Issue 10, Pages 1993-2000Publisher
IWA PUBLISHING
DOI: 10.2166/wst.2011.154
Keywords
indicators; infiltration systems; multicriteria method; stormwater
Funding
- Region Rhone Alpes
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Nowadays, stormwater infiltration systems are frequently used because of their ability to reduce flows and volumes in downstream sewers, decrease overflows in surface waters and make it possible to recharge groundwater. Moreover, they come in various forms with different uses. Despite these advantages the long term sustainability of these systems is questionable and their real performances have to be assessed taking into account various and sometimes conflicting aspects. To address this problem a decision support system is proposed. It is based on a multicriteria method built to help managers to evaluate the performance of an existing infiltration system at different stages of its lifespan and identify whether it performs correctly or not, according to environmental, socio-economic, technical and sanitary aspects. The paper presents successively: the performance indicators and the way they were built, the multicriteria method to identify if the system works properly and a case study.
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