Loss of life risk due to impacts of boulders on vehicles traveling along a very busy road.

The paper is aimed to describe the used approach for calculating the risk along a road stretch belonging to a very busy coastal road in Southern Italy. During the time span 1969-2013, 22 rockfalls affecting this road were inventoried. On 18th February 2014 a new rockfall happened and several boulders reached the northern lane of the road. On the basis of collected data concerning the landslide hazard and road vulnerability, a procedure for the probability evaluation of a fatal accident - for a road user - is presented, discussed in details and compared. The analysis is meant to allow the design of appropriate protection devices along the cliffs overhanging the road.