基于乘客流量概率分布的轨道车站合理间距优化模型

Optimal Model of Reasonable Stations Spacing of Urban Mass Transit Lines Based on Probability Distribution of Passenger Volume

车站间距规划是城市轨道交通规划和设计的重要内容。在已有优化方法局限性分析的基础上,建立了以轨道线路系统总成本最少化为优化目标,并考虑乘客流量和乘行距离随车站间距概率分布的合理间距优化模型,提出了模型的算法,得到了各影响因素常见组合情况下的车站合理间距,分析了各因素变化对合理间距的影响,为实际工作中车站间距的合理确定提供了理论支持。

The planning of the stations spacing is one of the most important parts of the planning and designing of the urban mass transit. Through the limitations analysis of the customary optimal method, the paper sets up a new optimal model for the distance between stations, based on the probability distributions of passenger volume and travel distance in train by variations of stations spacing, with pursuing the least all-in cost of urban mass transit line as the optimal objective. Meanwhile it advances the arithmetic methods of the model, obtains several proper distances between stations under different combinations of various factors,and analyses it＇s changes influenced by several familiar factors,which provide how to decide the reasonable inter-station distance with the theoretical support.