Multicriteria decision-making under uncertainty : a graphical approach for comparing the sustainability of urban flood risksmanagementstrategies

Abstract : This study pertains to decision-making in the urban flood risks management field.It concentrates on the sustainability assessment of management alternatives in an uncertain context. The main research question that this study focuses on is as follows : how decision-makers could address uncertainty when assessing the sustainability of management alternatives ? As a predictive decision-making, urban flood risks management involves uncertainties arising from a lot of sources. Nowadays practical concerns of uncertainty are amongst the topics in which increasing interest is being focused on, and one of the crucial issues is how to present uncertainty related to multicriteria analysis results.This study aims to provide an introduction to this issue in the urban flood risks management field, and to suggest a tool that enables decision-makers to visualize the range of expected sustainability performance of their decisions in order to deal with uncertainty in the easier.