Simulation of Exit Choosing in Pedestrian Evacuation Using a Cellular Automaton Model Based on Surrounding Pedestrian Density

A cellular automata model is proposed to simulate the pedestrian evacuation behavior in a room with multiple exits by considering the surrounding pedestrian density related to current cell based on the direction. The numerical results show that the pedestrian density and the radius of visual area are two important factors in an evacuation which can affect the evacuation times apparently. It is found that blindly constant choosing the direction with smaller pedestrian density may lead to an increase of evacuation time.