Digital Twin for flood prevention: digitalization of the Hydrogeological Plan for the town of Rosazza (BI)

Modern-day construction industry has to deal with unprecedented obstacles: the need for a radical digitalization and the inclusion of sustainability in an extremely polluting sector. These goals can be pursued simultaneously in a BIM environment when considering an already existent building or urban area through a "reverse engineering” procedure and the creation of a Digital Twin. This thesis aims to realize a Digital Twin of the town of Rosazza (Biella, Italy) to assess the risk of floods for existent buildings. Data about the city and flood events in the area were analyzed and implemented in a BIM authoring platform to create an integrated environment that could offer a digital representation of the city through a Scan-to-BIM approach and an efficient data enrichment phase that exploited live-data coming from a combination of traditional weather station and an innovative monitoring system through sensors. The final result was the visualization of the Risk of Floods according to a formula that took into consideration the vulnerability of every building and weather parameters for the creation of a three-dimensional integrated PAI (Hydrogeological Plan). This could help local authorities determine better managing of evacuation, further implement sensor monitoring systems on a territorial level, or use the model as a ground basis for further data enrichment, detailing, and development. In conclusion, this thesis aims to analyze the correlation between historic elements and BIM, integrating these concepts in the larger spectrum of climate change and offering a practical application that could lead to a better implementation of technologies for heritage conservation.