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首页> 外文会议>Computers in railways XII: Computer system design and operation in railways and other transit systems >Disruption handling in large railway networks
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Disruption handling in large railway networks

机译：大型铁路网络中的中断处理

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Railway traffic is operated according to a detailed off-line plan of operations, specifying for each train its path through the network plus arrival and departure times at its scheduled stops. During daily operations disturbances perturb the plan and dispatchers take actions in order to keep operations feasible and to limit delay propagation. This paper studies how to support dispatchers in the management of infrastructure disruptions in a large network divided into dispatching areas of limited size. We consider seriously disturbed traffic conditions on double track railway lines where some block sections of one track are unavailable for traffic, e.g., due to a temporary track blockage. We start from a given set of disruption resolution scenarios, computed off-line. Disrupted train services are either cancelled, rerouted in the disrupted dispatching area or rerouted in other areas while still with the same origin and destination. Given a disruption resolution scenario, we adopt an advanced decision support system, ROMA (Railway traffic Optimization by Means of Alternative graphs), in order to compute efficient train schedules at the level of signal control, along with detailed performance indicators. Alternative dispatching solutions are computed in a few minutes. The dispatcher has to choose one schedule for implementation, with a trade-off between minimizing delays of all trains running in the network and limiting the cancellation of disrupted train services. A test case is evaluated on a large Dutch railway network with heavy traffic and strong disorder. We compute dispatching solutions for a given set of scenarios and evaluate them in terms of travel times, waiting times and train delays.
机译：铁路交通是根据详细的离线运营计划进行运营的，其中详细说明了每列火车通过网络的路径以及到达预定站点的到达和离开时间。在日常操作中，扰动计划和调度员采取措施，以使操作可行并限制延迟传播。本文研究如何在大型网络（划分为有限的调度区域）中支持调度员管理基础结构破坏。我们认为双轨铁路线上的交通状况受到严重干扰，在该情况下，一条轨道的某些路段无法通行，例如由于临时性的轨道阻塞。我们从一组给定的中断解决方案场景（离线计算）开始。中断的火车服务被取消，在中断的派遣区域中更改路线或在其他区域中更改路线，同时仍具有相同的始发地和目的地。在给定中断解决方案的情况下，我们采用了先进的决策支持系统ROMA（借助替代图形的铁路交通优化），以便在信号控制级别计算有效的火车时刻表以及详细的性能指标。几分钟后便会计算出替代的调度解决方案。调度员必须选择一个实施时间表，并在最小化网络中运行的所有火车的延误与限制取消中断的火车服务之间进行权衡。在交通拥挤且障碍严重的大型荷兰铁路网络上评估了一个测试案例。我们针对给定的场景计算调度解决方案，并根据旅行时间，等待时间和火车延误对其进行评估。

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