Merge historical documents digitalisation with LiDAR: a method for assessing and disseminating rockfall mitigation strategies

In this work, we present a methodology to improve the rockfall risk assessment and the population preparedness for small communities. Lauria town, southern Italy, is shown as a case history. We used traditional digitalisation of the paper archive to reconstruct and geocoding the history of mitigation works. We coupled this with the very-high resolution orthophotos and DTM derived from the LiDAR-RPAS survey. The aim was to create a reliable state of the art, resumed in an operative monography, for experts who need to design affordable and efficient new rockfall mitigation structures. The very-high resolution DTM is also aimed to improve rockfall modelling. Moreover, we made webGIS and 3-D interactive views to disseminate rockfall hazard and mitigation strategies among the population and local authorities