Multi-hazard Analysis and Mapping of Infrastructure Systems at National Level Using GIS Techniques: Preliminary Results.

Preliminary results of the multi-hazard (seismic, landslide, floods) analysis, conducted on some Critical Infrastructures (CI), are presented. Lifelines an CI such as roads, railways, gas and power networks are essential for the Country's economy, but also to ensure the overcoming of emergencies in those territories in case of natural disasters. ENEA CIPCast platform, an innovative Decision Support System (DSS), has been used for the GIS-based analysis of physical impacts induced by natural hazards on CI. It has been exploited in several projects, including RAFAEL that, by means of analytical and geoprocessing tools, was focus on the extensive assessment and mapping of CI hazard. Geospatial layers, describing and classifying the different hazards in Italy, has allowed to produce a set of specific hazard maps for each CI considered. Multi-hazard values were assigned by using a suitable matrix having four classes. Preliminary results are discussed focusing on the impact on CI exposed to different level of seismic, flood and landslide hazard.