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Robust routing and timetabling in complex railway stations

机译:复杂火车站中的稳健路线和时间表

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摘要

In nearly saturated station areas the limited capacity is one of the main reasons of delay propagation. Spreading the trains well in time and space in these areas has a big impact on the passenger robustness, i.e. the total travel time in practice of all passengers in the railway network in case of frequently occurring small delays. We focus on improving the performance in the bottleneck of the network in order to improve the performance of the whole railway network. This paper proposes a method that builds from scratch a routing plan and a cyclic timetable that optimizes the infrastructure occupation and the passenger robustness. An integer linear routing model assigns, without considering a timetable, every train to a route such that the maximal node usage is minimized and that the number of times that each node is used, is quadratically penalized. Thereafter, a mixed integer linear timetabling model assigns to each train the blocking times at which the nodes on its route, assigned by the routing model, are reserved and released. Different from other approaches is that we focus on the occupation of the railway infrastructure before constructing the timetable. The approach is validated on the complex railway station area of Brussels (Belgium). Our routing plan and timetable from scratch improve the passenger robustness up to 11% compared to a reference timetable and routing plan composed by the Belgian railway infrastructure manager Infrabel and by up to 2% compared to a reference timetable and routing plan from literature.
机译:在接近饱和的车站区域,有限的容量是延迟传播的主要原因之一。在这些区域的时间和空间中良好地分布火车对乘客的健壮性有很大影响,即,在经常发生小延误的情况下,铁路网络中所有乘客的总行驶时间。我们专注于改善网络瓶颈中的性能,以改善整个铁路网络的性能。本文提出了一种从头开始构建路由计划和周期性时间表的方法,以优化基础设施占用和乘客健壮性。整数线性路由模型在不考虑时间表的情况下,将每条火车分配给一条路线,从而最大程度地减少了最大节点使用量,并二次惩罚了每个节点的使用次数。此后,混合整数线性时间表模型为每个列车分配了阻塞时间,在该时间,由路由模型分配的其路径上的节点被保留并释放。与其他方法的不同之处在于,我们在制定时间表之前将重点放在铁路基础设施的占用上。该方法已在布鲁塞尔(比利时)的复杂火车站区域得到验证。与比利时铁路基础设施经理Infrabel制定的参考时间表和路线计划相比,我们的从头开始的路线计划和时间表将乘客的健壮性提高了11%,与文献中的参考时间表和路线计划相比,提高了2%。

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