Improving Infrastructure Management for Rockfalls During Rainfall Events

Hazard refers to the probability of occurrence of a process (rockfall) with a given level of intensity or severity within a given time period and a specific area. For its evaluation, it is necessary to know the following aspects: where and when the processes occurred in the past, their intensity and magnitude, and the frequency of occurrence. The exposed elements can be people, goods, property, infrastructure, etc., which may suffer the consequences of rockfall directly or indirectly. Calculating the risk allows decisions and tailored solutions to be defined on protective measures and prioritises actions in the most at-risk sectors. Therefore, this study aims to describe the analysis of information on rainfall-induced rockfalls in Anaga, Tenerife (Canary Islands), in order to facilitate the improvement of road safety and operation in this geographical area by enabling the Road Maintenance and Conservation Services to mobilise the resources or means necessary to restore the roads to their previous state after the event/s or, where appropriate, to establish traffic limitations or restrictions to mobility.