Global performance evaluation of infiltration systems using multicriteria procedures at a design stage

摘要: Infiltration systems are frequently used as an option to manage urban storm drainage. By reducing flows and volumes in downstream sewers or in surface waters, they decrease the overflows and make it possible to recharge groundwater. Finally, they come in various forms with different uses such as floodable sport grounds or porous roads. Despite these advantages the long term sustainability of these systems is not certain and their real performances have to be assessed taking into account various and sometimes conflicting aspects. For these reasons, the evaluation of infiltration techniques is indispensable at both design and management stage. To address this problem at the design stage, a decision support system is proposed. It is based on a multicriteria method and aims to help at evaluating and comparing the performance of alternatives in order to choose a good project. A set of performance indicators …