Community Resilience Analysis for the Formulation of a Seismic Mitigation Strategy at Inter-municipal Level

In recent years, community resilience assessment has also become a central issue in earthquake risk mitigation. However, the application of resilience concepts is extremely complex. In the study of seismic risk, applications are highly multidisciplinary. Consequently, they are often incomplete or partial. Although new rigorous mathematical models have been developed, most applications are extremely complicated and susceptible to the input data and skill of the user. Even more so, applications to real large-scale contexts are much more complex than applications on a local scale or on single structures. New models and procedures are needed to apply resilience principles in the formulation of mitigation strategies at regional or sub-regional scales. In the present study, the impact of a highway on a set of communities is evaluated. The seismic resilience of communities is assessed by integrating the seismic performances of bridges and viaducts with those of the connected housing systems. The latter are estimated by modelling their physical damage with vulnerability curves for buildings. The main results are illustrated and discussed.