基于排队论的线路密集点公交站台容量优化模型

Capacity Optimization of Line-Dense Bus-Stop by Queuing Theory

城市公交线路密集点是城市公交规划与优化中的重要节点.线路密集点公交站台的服务水平直接影响到城市公交整体服务表现.针对线路密集点的公交站台线路容量问题,本文以排队论为方法基础,引入公交达到率、服务台数、乘客平均上下车时间等为模型参数,构建线路密集点公交站台线路容量计算模型,并通过改变参数来进行公交站台的容量优化,为公交站台的线路数及泊位数设计提供理论方法依据.模型应用于西安市某公交站台,计算该站台线路容量并进行了优化分析.应用结果表明,该模型能有效地计算线路密集点公交站台线路容量并做出优化分析.

trine-dense bus station is key point of the urban bus planning and optimization. The service level of bus-stop-station with dense lines directly affects the overall performance of urban bus. As to the capacity issues of line-dense bus station, this paper develops a capacity calculation model by the queuing theory＂ and introduces the bus arrival rate, service desk number, the average time of passengers get on and off as the model parameters. Then, it optimizes the capacity of the bus station by parameter variation. The research provides a theoretical basis for berth and route capacity design of bus-stop. The model is applied to a bus station in Xi＇an city to calculate and optimize the road capacity. The application results prove the efficiency and feasibility of the proposed method.