随机条件下固定公交线路服务频率优化模型  

An Optimal Model for Fixed-Route Bus Service Frequency Determination Considering Stochastic Conditions

作　　者：陈维亚[1] 陈治亚[1,2] 

机构地区：[1]中南大学交通运输工程学院,长沙410075 [2]西安电子科技大学,西安710071

出　　处：《武汉理工大学学报（交通科学与工程版）》2011年第6期1108-1110,1114,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家自然科学基金项目(批准号:71171200);中央高校基本科研业务费专项资金项目(批准号:721500036);中南大学博士后基金项目资助

摘　　要：在考虑客流需求波动及车辆运行时间随机变动的情况下,建立了以乘客候车期望和公交车辆利用率总体最优为目标的公交线路服务频率优化模型.利用蒙特卡罗方法随机模拟一条高频线路的公交服务,计算得到了给定线路参数下的最优服务频率.算例表明该模型可用来确定高频服务公交线路的发车时间间隔.It is a critical problem for balancing supply and demand of transit service to determine the service frequency of a bus route according to the passenger demands and operation conditions.Considering passenger demand fluctuation and stochastic variation of vehicle running time,an optimal model for determining bus route service frequency was developed.In this model,the expectation of passengers waiting for buses and the efficiency of running vehicles were aimed to achieve combined optimization.Monte-Carlo method was used to simulate high frequency bus route service and the optimal service frequency of this example route was calculated given the route parameters.The result shows that this model can be used to determine the bus departure interval of a bus route with high frequency service.

关 键 词：城市公共交通 公交服务频率 优化 随机模拟 固定公交线路 

分 类 号：U491.1[交通运输工程—交通运输规划与管理]