In an era where unpredictable and extreme weather events are becoming increasingly frequent, it is essential to have infrastructure that is resilient and can remain functional during and after a natural hazard event. A nation's or a region’s economy heavily relies on the smooth operation of its road network. However, road infrastructure is always vulnerable to natural hazards that can lead to anything from small disruptions to road closures for several months as well. This master's thesis focuses specifically on calculating the efficiency index of the road network under multi-hazard conditions in the region of Piemonte, Italy. To evaluate the efficiency index, we must evaluate the geotechnical stability of the slope and analyze the structural stability of building bridges along the RN.