Mapping solutions and reliability control in UAV’s photogrammetry for structural emergency. The multi-instrumental survey of the Clock Tower in the historical complex of University of Pavia

The application of UAVs amplifies the potential for documentation and monitoring in the context of historic buildings, permitted by the competitive characteristics of acquisition and expeditious analysis of morpho-metric data. This possibility assumes a particular key role in those contexts of emergency due to structural instability which represent a risk for the safety of buildings and users in the urban context. The case study of the Clock Tower of Pavia, in the historical complex of the Central University, experiences integrated surveying and monitoring processes with UAV in the urban critical scenario for the mapping of structural surfaces, the certification of instrumental morpho-metric reliability and the diagnosis of deformations and structural instabilities present on the masonry block.