Monitoring the health of an emblematic monument from terrestrial laser scanner

This paper deals with the application of terrestrial laser scanner technology to the health monitoring of a monument in the World Heritage List. Specifically, this monument is a mediaeval wall located in Avila, Spain. The main aim of the paper is to show the relevance and novelty offered by the laser scanning methodology developed, which incorporates different statistical and modelling approaches not considered until now. In addition, the methods proposed in this paper together with the obtained results allow the measurement of entire structures or deformed shapes in buildings. The accuracy of our methodology compared to surveying methods proved satisfactory. Thus, they have been useful not only to show its viability but also to secure and maintain the safety and serviceability of this emblematic monument.