基于多层次综合评价的公交运行瓶颈诊断

运行瓶颈诊断对公交发车时刻表调整和车辆调度优化具有重要意义。从公交乘客和公交运营企业的不同关切点出发,结合公交GPS和IC卡等实时运营数据,提出一种公交运行瓶颈诊断方法。在公交企业运营效益、公交乘客出行效率等因素分析的基础上,分别从站点层面提出公交车头时距、车辆延误度等运行评价方法,在线路层面构建公交行程时间与运输效益评价方法,以及基于站点、线路评价结果的线网层面综合分析方法。最后,利用案例获取的公交车位置、行驶速度、公交乘客数量等实时数据,以及公交站点、线路、线网和调度方案等静态数据,对所提方法进行检验。结果表明,公交运行瓶颈诊断结果与公交实际运行状况具有较高符合度,能够实时、有效反应公交运行状态,具有较好的工程实用价值。

Bus Operation Bottleneck Diagnosis Based on Multi-level Comprehensive Evaluation

Operation bottleneck diagnosis is of great significance to bus schedule adjustment and vehicle scheduling optimization. Based on the different concerns of bus passengers and bus operation enterprises, and combined with real-time operation data such as bus GPS and IC card, a method of bus operation bottleneck diagnosis is proposed. In the enterprise operation efficiency of bus, bus passenger travel based on the analysis of the factors such as efficiency, respectively from the aspect of site bus is put forward the headway, vehicle delay degree evaluation methods, such as, at the line level build bus travel time and transportation efficiency evaluation method, and based on the site, track line network level comprehensive analysis method of evaluation results. Finally, the proposed method is tested with real-time data such as bus location, driving speed and number of bus passengers obtained from the case, as well as static data such as bus station, line, line network and scheduling scheme. The results show that the bus operation bottleneck diagnosis result has a high degree of conformity with the actual operation of the bus, and it can reflect the bus operation status in real time and effectively, and has good engineering practical value.