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Nat. Hazards Earth Syst. Sci., 15, 687-701, 2015
https://doi.org/10.5194/nhess-15-687-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
30 Mar 2015
A spatiotemporal optimization model for the evacuation of the population exposed to flood hazard
H. Alaeddine2,1, K. Serrhini1, M. Maizia1, and E. Néron2 1Laboratoire Citères de l'Université de Tours, Tours, France
2Laboratoire Informatique de l'Université de Tours, Tours, France
Abstract. Managing the crisis caused by natural disasters, and especially by floods, requires the development of effective evacuation systems. An effective evacuation system must take into account certain constraints, including those related to traffic network, accessibility, human resources and material equipment (vehicles, collecting points, etc.). The main objective of this work is to provide assistance to technical services and rescue forces in terms of accessibility by offering itineraries relating to rescue and evacuation of people and property. We consider in this paper the evacuation of an urban area of medium size exposed to the hazard of flood. In case of inundation, most people will be evacuated using their own vehicles. Two evacuation types are addressed in this paper: (1) a preventive evacuation based on a flood forecasting system and (2) an evacuation during the disaster based on flooding scenarios. The two study sites on which the developed evacuation model is applied are the Tours valley (Fr, 37), which is protected by a set of dikes (preventive evacuation), and the Gien valley (Fr, 45), which benefits from a low rate of flooding (evacuation before and during the disaster). Our goal is to construct, for each of these two sites, a chronological evacuation plan, i.e., computing for each individual the departure date and the path to reach the assembly point (also called shelter) according to a priority list established for this purpose. The evacuation plan must avoid the congestion on the road network. Here we present a spatiotemporal optimization model (STOM) dedicated to the evacuation of the population exposed to natural disasters and more specifically to flood risk.

Citation: Alaeddine, H., Serrhini, K., Maizia, M., and Néron, E.: A spatiotemporal optimization model for the evacuation of the population exposed to flood hazard, Nat. Hazards Earth Syst. Sci., 15, 687-701, https://doi.org/10.5194/nhess-15-687-2015, 2015.
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Short summary
The importance of managing the crisis caused by floods requires the development of effective evacuation systems. An evacuation system must take into account certain constraints such as network traffic, accessibility and vulnerability. The main objective of this work is to provide assistance to technical services and rescue forces in terms of accessibility by offering itineraries relating to the rescue and evacuation of people and property. Evacuation plan must avoid congestion on road network.
The importance of managing the crisis caused by floods requires the development of effective...
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