A Spatial Decision Support System Aiding Levee Managers in their Repair and Maintenance Planning

摘要

More and more floods occurred over the last two decades causing important damages. Moreover, levees are often not well maintained, so they hardly resist to major floods and can break easily. At French national scale, the length of levees and the lack of data complicate their management. In this frame, levee managers need approaches and tools to be helped in their maintenance decision. First, we have developed a Levee Geographic Information System. This GIS application allows collecting data necessary for managing a levee portfolio. Secondly, we have developed a SDSS to assist levee managers in their prioritizing maintenance activities. This SDSS is using Operational Safety methods to assess levee performance along their length. The SDSS is aggregating performance indicators with a rule-based multi-criteria assignment method. All these tools and methods are operational and now used by levee managers in their regular infrastructure portfolio maintenance.