机场航站楼作为大型交通枢纽，结构复杂，一旦发生突发事件，疏散效率极为重要。为提高航站楼疏散效率，结合航站楼内人员实际分布情况，提出一种改进A *算法的航站楼疏散最优路径选择方法。通过对航站楼内人员流动进行模拟，获取航站楼人员分布数据，并在路径选择的代价计算中考虑各区域人员分布的时变性，从遍历方式、网络权值等方面进行A *算法改进，并对拥堵路径进行重规划，实现对拥堵路径的规避。结果表明考虑航站楼旅客分布的疏散路径会对各节点疏散路径进行改进，相较于传统A *算法疏散时间更短，并能实现对拥堵路径的规避。研究结果可为突发事件下航站楼旅客快速疏散提供理论及方法支持。

As a large transportation hub, airport terminals have complex structures, and the evacuation efficiency becomes extremely important when an emergency occurs. To improve the evacuation efficiency of the terminal building, an improved A * algorithm has been proposed for selecting the optimal evacuation path based on the actual distribution of personnel. Firstly, the flow of personnel in the terminal building was simulated, and data on the distribution of personnel was obtained. Then the time-varying distribution of personnel in each area was considered in the cost calculation of path selection. Finally, the A * algorithm was improved in terms of traversal methods, network weights, other factors, and congested paths were replanned to avoid congestion. The results indicate that considering the distribution of passengers in the terminal improves the evacuation paths at each node, which leads to shorter evacuation time compared to traditional A * algorithm. It also allows for the avoidance of congested paths. This study can provide theoretical and methodological support for the rapid evacuation of passengers in the terminal under emergencies.