It suggests solving the reasonable route choice set of passenger in train space-time service network with combinational algorithm composed of time window search algorithm and improved Dijkstra algorithm and designs subalgorithm of passenger flow assignment based on space-time network reasonable route choice set. 提出由时间窗搜索算法和改进的Dijkstra算法构成的组合算法求解旅客在列车时空服务网络中的合理路径集合,并设计基于时空服务网络合理出行路径集合的客流分配子算法。