基于客流直达的城市轨道交通跨站停开行方案优化研究

随着我国城市轨道交通网络的不断扩大以及高质量发展要求,对网络化运营组织提出了更高的要求.对于不具备越行条件的线路,如何通过停站方案优化来提高列车运行速度是一个重要的研究方向.在对传统A/B跨站停运营模式优劣分析的基础上,提出了通过开行A/B/C 3类列车可同时提高列车运行速度且所有乘客无换乘的方案.首先,基于可乘坐列车...

Train Planning Optimization for Skip Stop Operation without Transfers in Urban Rail Transit

With the rapid development of urban rail transit and the need to promote high-quality development, higher requirements have been put forward at the operational and organizational levels. For lines without overtaking facilities, it is important to improve the train speed by optimizing the train stopping plan. Based on the traditional A/B skip-stop mode, this paper proposes an A/B/C skip-stop mode to achieve a time-saver without transfers. First, the characteristics of all trips under various stopping patterns are investigated, and a mixed-integer programming model with stopping patterns and frequencies as decision variables is constructed. Additionally, a genetic algorithm was developed based on this model. Finally, the effectiveness of the proposed model and heuristic algorithm is verified through a set of real-life instances based on the Beijing Metro Line 6. The results show that the travel time and in-train time can be reduced by 2.15% and 6.79%, respectively, without transfers. If the waiting time is not considered, the in-train time can be reduced by 14.25%.