GIS-Based rough sets theory to nuclear risk management

This paper proposes a multicriteria evaluation approach to post-accident nuclear impact management permitting to characterize the different districts of the contaminated area in terms of their vulnerability. The proposed approach contains four phases: identifying the stakes involved, identifying representative criteria, quantifying criteria scores, and multicriteria classification. The present paper especially focalizes on the multicriteria classification phase , which relies on the use of Dominance-based Rough Set Approach (DRSA). A decision support system supporting the approach has been developed by coupling a GIS technology and an existing software supporting DRSA. The approach is then validated using real-world data relative to a nuclear risk management decision problem in the southern region of France.