Abstract
A flooding to an urban underground space may cause the serious damage on a life of human. The effective simulation that handles directly individual action of human being has not been applied to the refuge from inundated urban underground space, up to now. In this study, the distinct-element-method type humanaction model is built and improved for the simulation of crowd behavior in the flow field, which is calculated by the shallow-water-flow analysis. In the human action model, an individual recognizes the situation of circumference, and actively moves based on self decision making. Interaction zone of individuals is set with assuming that individuals decide their moving direction based on the visual information of their circumference. The driving force of active motion of individuals is set by taking previous observation of moving speed of crowd into account.
