Methodologies to estimate economic flood damagesudare increasingly important for flood risk assessment andudmanagement. In this work, we present a new synthetic flooduddamage model based on a component-by-component analysisudof physical damage to buildings. The damage functionsudare designed using an expert-based approach with the supportudof existing scientific and technical literature, loss adjustmentudstudies, and damage surveys carried out for past flood eventsudin Italy. The model structure is designed to be transparentudand flexible, and therefore it can be applied in different geographicaludcontexts and adapted to the actual knowledge ofudhazard and vulnerability variables.udThe model has been tested in a recent flood event in northernudItaly. Validation results provided good estimates of posteventuddamages, with similar or superior performances whenudcompared with other damage models available in the literature.udIn addition, a local sensitivity analysis was performedudin order to identify the hazard variables that have more influenceudon damage assessment results.
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