列车时空服务网络客流分配方法研究

Passenger Flow Assignment Method Based on Time and Space Service Network of Train

客流分配方法研究是铁路客运产品设计的核心,对评价列车服务网络质量具有重要意义.本文研究旅客列车运行图形成的时空服务网络属性及其构造方法,在分析多层次旅客具有不同的服务时间窗期望、换乘次数、换乘时间等出行选择行为基础上,确定网络弧段阻抗.建立体现旅客时空差异服务需求约束的客流分配模型.提出由时间窗搜索和改进的Dijkstra算法构成的组合算法求解旅客合理时空服务路径集合,设计基于合理服务路径集的客流分配子算法.实现在网络条件下,根据分配权重函数不同,完成客流时空分配.最后,利用MATLAB编程,以京广高速铁路相关时空服务网络为例,验证模型和算法的有效性.

Passenger flow assignment theory is the core technology of railway passenger transport product design, and is of great significance to the evaluation of the quality of train service network. This paper studies attributes and establishing method of time and space service network of train constructing from passenger train working diagram, based on analyzing multi-level passenger＇s trains choice behavior. It concludes who expect the range of service time（expect the window of service time）and transfer frequency and time, arc sections resistance of network is also determined. The passenger flow assignment model of network reflecting diversified passengers＇ travel service demand is formulated, which suggests solving the reasonable train space-time service rout choice set of passenger with combinational algorithm composed of the window of service time search algorithm and Dijkstra algorithm. The paper then designs sub-algorithm of passenger flow assignment based on reasonable train space-time service route choice set. At last section, the paper takes passenger train diagram under relevant Beijing-Guangzhou high speed railway network as the initial space-time service network, and conducts passenger flow assignment and validates the effectiveness of the model and the algorithm.