GIS techniques and Decision Support Systems to reduce landslide risk: the case study of Corvara in Badia, northern Italy

Landslide hazard assessment aims at profiling the prospective damaging events and identifying the potentially affected areas to reduce risk. This means that procedures for the management of emergency situations can be effectively set up in advance. Where and when a potentially damaging event will occur is one of the most important topics of discussion in the scientific community. As a matter of fact, landslide area will contribute to identify the vulnerable elements potentially affected by the event of a given magnitude and the degree of physical damage and the economic loss. Knowledge of the area and the time of occurrence, related to the triggering factors, permits to apply in advance an «early warning» system and related procedures to manage the crisis phase, according to Civil Protection Authorities and the laws in force. An example of the proposed methodology is presented; it exploits GIS techniques, Decision Support System, and mobile technologies to reduce landslide risk in the Corvara in Badia test site.