Vehicle Evacuation Simulation in Seoul
The bombardment of a metropolis is considered a nightmare scenario. To reduce losses from such an assault, big cities have developed evacuation policies in case of bombardment. However, to build efficient evacuation policies, much footing data is required that considers both military and civilian views. Agent-based modeling and simulation could be utilized as a method to obtain the footing data. In this paper, we develop an evacuation agent-based model that describes a massive evacuation through the road network of a metropolis during a bombardment. In particular, our model took account of bombing strategies (i.e. the military view) as well as the characteristics of roads and evacuation agents (i.e. the civilian view) in order to analyze evacuations from both military and civilian perspectives. Moreover, we applied real data from a target region to calibrate parameters and initial conditions of the evacuation agent-based models, which increased the reliability of simulation results. Using the evacuation agent-based model, we designed and performed virtual experiments with varying military and civilian factors. Through the various analyses on the experiment results, we showed that our model could be a framework that provides footing data to develop efficient evacuation policies and preparations.
<Figure 1. This result shows how to evacuate vehicles in the Gangnam area of Seoul in any cases of emergency. Over time, the vehicles move through from the center of the city to its outskirts. During the evacuation, there were unwanted bottlenecks in the city center, and this simulation result would strengthen our effort to mitigate this future risk with informed preparations.>
<Figure 2. This work was introduced by a non-government organization, which works on the safety and the sustainability of our society. This suggests that the citizens, rather than public officers, would be more concerned on our societal problems and risks.>