This paper proposes a multi-exit evacuation model based on a continuous model for the pedestrian evacuation problem. Firstly, it is determined that the distance between pedestrians and exits, the pedestrian density near exits, and the width of exits are the main factors for exit selection. A pedestrian multi-exit selection model is defined by taking the three factors into account. Secondly, a pedestrian evacuation model is constructed by considering the impact of pedestrian psychological factors on expected speed and exit attractiveness. Finally, the multi-exit evacuation is simulated, and the pedestrian evacuation process is tested on three conditions. The effects of pedestrian density near the exit and the width of exit are analyzed on the final simulation. The simulation results show that the evacuation model can effectively simulate the pedestrian evacuation process in multi-exit scenarios.

针对行人疏散问题，本文提出了一种基于连续模型的多出口疏散模型。首先确定行人与出口的距离、出口附近的行人密度、出口的宽度是选择出口的主要因素。通过考虑三个因素来定义行人多出口选择模型。其次，考虑行人心理因素对预期速度和出口吸引力的影响，构建行人疏散模型。最后对多出口疏散进行仿真，对三种工况下的行人疏散过程进行了测试。分析了出口附近行人密度和出口宽度对最终仿真的影响。