Study Of Dynamics And Computer Simulations Of Indoor Pedestrian Evacuation Based On The Game

Pedestrian traffic arouses the people’s wide concern for a long time as it is an important part of the traffic. Especially the stampedes occur frequently in recent decades, high alert about pedestrian evacuation was aroused in the whole society and the pedestrian traffic problems were look forward to be studied. A lot of manpower and material resources were invested in pedestrian traffic by various countries in recent decades, abundant accomplishments have been made, some theories and models about pedestrian traffic begin to shape, but many practical problems are remained. We propose that introducing game theory into pedestrian evacuation process due to competing and avoiding are two features of pedestrian evacuation process, and we propose the boycott strength as the strength that pedestrians boycott to imitate the winners to update their strategies. We simulate the pedestrian evacuation process based on cellular automaton by introducing game theory. Through the studies, the main achievements we get show that:(1) Evacuation time is different between different proportions of competing pedestrians in the same condition of exit width and pedestrian density. It means that the game between pedestrians plays an important part in evacuation efficiency.(2) Optimizing proportion of competing pedestrians relates to the exit width and pedestrian density. So, whether the proportion of competing pedestrians is good for pedestrian evacuation depends on the exit width and pedestrian density at that time.(3) If Boycott strength of update game strategy by referencing the winner is small in the process of indoor pedestrian evacuation, then the competing behavior is extremely easy to spread in the indoor pedestrian evacuation process, thereby affecting the evacuation efficiency.(4) In the indoor pedestrian evacuation process, when the pedestrian density is low and the exit is wide, we encourage the pedestrians to imitate the winners to update their game strategies via offering the information of standardizing roles about rapid evacuation. When the pedestrian density is high and the exit is narrow, the information of standardizing roles about avoiding to congestion is provided. Thus, the evacuation efficiency can be enhanced.(5) The optimizing Boycott strengths corresponding to the shortest evacuation times in different conditions are yielded. Our study provides a new perspective to enhance the efficiency of indoor pedestrian evacuation.