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An Agent-Based Co-modeling Approach to Simulate the Evacuation of a Population in the Context of a Realistic Flooding Event: A Case Study in Hanoi (Vietnam)

Abstract : According to recent studies, Vietnam is one of the twenty countries most affected by natural disasters in the world, and particularly by floods either on the low elevation coastal zones (risk of submersion) or along the Red River and the Mekong River (risk of flooding). In this context, dams are both means of mitigation but also threats given the possible failures and ruptures. The authorities must, therefore, prepare warning systems and evacuation plans for the downstream population to avoid loss of life. Agent-based models are now the approach of choice to support such preparedness by considering the system as a whole and integrating dynamics of different natures: hydrology, population behavior, evacuation, crisis management, etc. To design such a decision-support tool, modelers generally need to couple different formalisms, such as diffusion equations when considering the hydrodynamic part, and agent-based modeling when considering inhabitants’ behaviors. This is the goal of the ESCAPE project, which uses agent-based simulations to explore evacuation strategies and contribute to the development and evaluation of evacuation plans. In this study, to improve the ESCAPE framework, we propose to combine a hydraulic dam failure model with an agent-based evacuation model using the GAMA platform. We focus on the evacuation of a Hanoi city (Vietnam) district, threatened by flooding due to the failure of the Hoa Binh dam located more than 80 km upstream of the city. We demonstrate how to methodologically and operationally couple a hydrodynamic water diffusion model (implemented using the HEC-RAS software) and a multi-paradigm evacuation model (using the ESCAPE framework). Our goal is to extend and enrich this population evacuation model by coupling it with flood simulation.
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https://hal.archives-ouvertes.fr/hal-03258912
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Submitted on : Saturday, June 12, 2021 - 9:02:49 AM
Last modification on : Monday, October 11, 2021 - 1:24:29 PM
Long-term archiving on: : Monday, September 13, 2021 - 6:06:18 PM

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Kevin Chapuis, Taha Elwaqoudi, Arthur Brugière, Eric Daudé, Alexis Drogoul, et al.. An Agent-Based Co-modeling Approach to Simulate the Evacuation of a Population in the Context of a Realistic Flooding Event: A Case Study in Hanoi (Vietnam). Mohd Hafiz Mohd; Md Yushalify Misro; Syakila Ahmad; Doanh Nguyen Ngoc. Modelling, Simulation and Applications of Complex Systems: CoSMoS 2019, Penang, Malaysia, April 8-11, 2019, 359, Springer, Singapore, pp.79-108, 2021, Springer Proceedings in Mathematics & Statistics, 978-981-16-2628-9. ⟨10.1007/978-981-16-2629-6_5⟩. ⟨hal-03258912⟩

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