PSI - Issue 78

Caterina Balletti et al. / Procedia Structural Integrity 78 (2026) 1823–1830

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3.3. Mapping of vulnerable elements Starting from the street network delineated in Section 3.2, the outcomes of the survey activities described in Section 3.1 were systematically integrated to identify vulnerable elements within the historic centre, with particular emphasis on issues of accessibility. This dataset is of significant value not only for the enhancement of tourism but also for the effective management of emergency situations. Within this framework, a range of potentially vulnerable features were catalogued, including the presence of stairways along streets, notably narrow passages, overhanging architectural components that may represent critical elements in case of seismic event, and arches or vaults that connect adjacent buildings. All of these data have been incorporated into a comprehensive GIS platform, which enables users to query and analyse the historic centre of Fiumefreddo Bruzio. Additionally, the GIS system includes a series of photographs illustrating the aforementioned elements, as depicted in Fig.5.

Fig. 5. Screenshot of the developed GIS with street and paths map of the historic centre and some of the mapped vulnerable elements.

3.4. Building forms Starting from the survey, for a set of buildings, the forms developed within the GENESIS project were filled. These forms collect available information about the building at different scales (i.e., urban, sector, and individual building); in this work, only the individual building scale was considered. All compiled data can be retrieved through the GENESIS platform by accessing the corresponding geo-referenced polygon for each building. Fig. 6 provides an illustrative example of the data accessible within the platform, depicting the building polygons and a representative section of the GENESIS form for a specific highlighted building. 4. Preliminary analyses Leveraging the data collected and integrated within GIS, preliminary analyses of vulnerable elements can be conducted. These analyses, specifically focusing on the built environment and the road infrastructure, contribute to the development of an interpretive model for the integrated management of seismic risk of the historic centre.