城市轨道交通接运公交最优长度与线路布设研究

Optimization Model and Planning Method of Feeder Bus Route for Urban Rail Transit

本文首先考虑了土地性质、出行需求和公交运营成本等因素,建立公交运营效益最大的接驳范围单变量非线性单变量规划模型,经过参数标定与约束的简化后采用二分法求解。在模型的约束中使用站点聚集效应距离衰减函数建立需求与接驳距离的关系式,并通过单约束重力模型获得的距离与需求样本对其进行参数标定。然后,以接驳范围为约束指导新增线路布设和原有线路调整。前者以站点覆盖率、非直线系数、运营费用等为指标,整体客运系统运输效率最大为目标,使用启发式解法布设新增公交接驳线路;后者根据定性定量相结合的原则,依流程调整原有线路走向。本研究需要采集的数据并不复杂,可用于指导轨道站点公交接驳相关工程实践。

This paper established a single-variable linear programming model considering the land-use condition, travel demand, transit operating costs and other factors, which aimed to determine what feeder scope could maximum the feeder bus＇s efficiency. Using the dichotomy the solution was get after fitting the parameters and simplifying the constraints. Using the range attenuation function of site aggregation effect a relationship was between the traffic demand and feeder distance, and using the distance and deman obtained from single gravity model the relation＇s parameters were calibrated. Then, the new lanes and adjusted the existed lanes of the feeder scope. To arrange the ne created d sample planted w lanes：site coverage, non-linear coefficients and operating costs were used as the indicators, the maximum of overall efficiency of the passenger transport system as the ultimate goal,the heuristic solution was used to arrange the new bus feeder lines. Based on the quantitative and qualitative synthetic analysis, the exited lines were adjusted on process. The needed data in this study is not complex, so the outcome of this study can be used to feeder bus engineering practices of the urban rail transit.