关键词: 城市交通, 疏散均衡, 优化模型, 行人疏散, 出口选择

Abstract:

In order to reduce the exit using imbalance caused by evacuees’blind exit choice during multiexit room evacuation, we propose an optimization model of exit choice under the multi-exit room evacuation based on point queue model. While, a hybrid algorithm based on genetic and simulated annealing algorithm is designed to solve the optimization model. For demonstrating the effective, a cellular automata model with certainty exit choice decision is presented to investigate the influence of different multi-exit selection schemes on evacuation time, including the multi-exit selection scheme obtained by our optimization model. The comparative results show that the exit selection scheme obtained by our optimization model based on the point queue model can balance the utilization of the multi-exit during the evacuation and decrease the evacuation time. Thus, the optimization model is helpful to make pedestrian evacuation scheme.

Key words: urban traffic, evacuation equilibrium, optimization model, pedestrian evacuation, exit selection