抄録
A microscopic pedestrian simulation based on Cellular Automata (CA) model has emerged as one of the promising approaches to describe the walking behavior of the human beings systematically. Previous studies had found that the characteristics of pedestrian flow could be generated with well-structured microscopic CA simulation models. Pedestrian flows are very different from vehicle flows. Pedestrian flows are not discerptible because pedestrians are allowed to use any parts of walking space and infinite paths. And the distribution of usage of walking space is dynamically changed by demands of the pedestrians. This paper presents a CA microscopic model for bi-directional pedestrian flows considering the usage of walking space. Simulation experiments show that the model is not only capable for generating various fundamental relationships, but also reasonably explains both the process of head-on collision with two large pedestrian platoons and the distribution of spatial usage dynamically.
