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A reduced phase-space approach to analyse railway dynamics

机译:一种简化的相空间方法来分析铁路动力学

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We introduce an approach of representing the dynamics of delays in railway systems by Eulerian aggregation of individual train delays onto the railway’s network segments. The approach lends itself naturally to the analysis of multi-scale spatio-temporal evolution of delays — colloquially known as the spread of “oil-stain” on the network. To illustrate the potential of this representation, we apply it to describe the dynamics on a national (also referred to as the macro-) scale of the Dutch railways: specifically we perform a principal component analysis of the Euler-aggregated global delay data, identify two key principal components to define a reduced phase-space, and discuss the delay evolution for the system as a moving point in this phase-space on a few example days.
机译:我们引入了一种方法,该方法通过将各个列车延误的欧拉式聚合汇总到铁路网中来表示铁路系统中的延误动态。该方法很自然地适合于分析延迟的多尺度时空演变,俗称“网络上的“油污”扩散”。为了说明这种表示方法的潜力,我们将其应用于描述荷兰铁路的国家(也称为宏观)规模上的动态:特别是,我们对Euler汇总的全球延迟数据进行主成分分析,确定定义缩小相空间的两个主要原理,并在几天的实例中讨论了系统在该相空间中作为移动点的延迟演化。

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