Unravelling the influence of human behaviour on reducing casualties during flood evacuation. Issue 14 (25th October 2020)

• Record Type: Journal Article
• Authors: Alonso Vicario, S.; Mazzoleni, M.; Bhamidipati, S.; Gharesifard, M.; Ridolfi, E.; Pandolfo, C.; Alfonso, L.
• Is Part Of: Hydrological sciences journal. Volume 65:Issue 14(2020)
• Page Start: 2359
• Page End: 2375
• Publication Date: 2020-10-25
• Subjects: flood evacuation -- human evacuation behaviour -- agent-based modelling -- flood modelling -- socio-hydrology -- unsolved problems in hydrology (UPH) -- UPH #21; Hydrology -- Periodicals; 551.4805
• DOI: 10.1080/02626667.2020.1810254
• Languages: English
• ISSNs: 0262-6667

Abstract

ABSTRACT: Floods are the natural hazards that are causing the most deaths worldwide. Flood early warning systems are one of the most cost-efficient methods to reduce death rates, triggering decisions about the evacuation of exposed population. Although previous studies have investigated the effect of human behaviours on evacuation processes, studies analysing a combination of behaviours, flood onset and warning timing are limited. Our objective is to explore how changes on the aforementioned factors can affect casualties. This is done within a modelling framework that includes an agent-based model, a hydraulic model, and a traffic model, which is implemented for the case study of Orvieto (Italy). The results show that the number of casualties is most impacted by people's behaviour. Besides, we found that a delay of 30 min in releasing the warning can boost the number of casualties up to six times. These results may help managers to propose effective emergency plans.