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首页> 外文期刊>Research in transportation economics >Operation of freight railways in densely used mixed traffic networks -An impact model to quantify changes in freight train characteristics
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Operation of freight railways in densely used mixed traffic networks -An impact model to quantify changes in freight train characteristics

机译：密集使用的混合交通网络中货运铁路的运营-量化货运列车特性变化的影响模型

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As freight transport is a growing challenge for metropolitan areas, there are calls to reintegrate rail freight into urban logistics. The use of railway systems in urban logistics should help to mitigate negative externalities such as noise, congestion and air pollution. Additional strengths of rail transport are the use of road-independent infrastructure, providing a reliable secondary mean of transport, and the high energy efficiency. A number of different concepts have been outlined - mostly conceptually, focussing on the intermodal interface, i.e. urban road-rail terminals or urban cross docks. This paper focuses on the rail side of urban logistics. It highlights the operational and technical challenges of operating freight trains in densely used railway networks with mixed traffic, against the background of railway network capacity consumption. The purpose of this study is to determine the effect of the characteristics of freight train on capacity consumption in mixed traffic railway networks. It devises an impact model to identify the drivers of capacity consumption and consequently to present effective ways to make better use of capacity in urban railway networks. To maximise the number of train paths in a mixed-traffic network, the technical and operational discrepancies between passenger and freight rail transport need to be reduced. Since passenger transport is the predominant user of railway networks in metropolitan areas, freight trains are required to adapt to the characteristics of passenger trains. A variation of the factors speed, acceleration, deceleration and train length has shown that the relative capacity consumption of freight trains can be reduced. The impacts of the factors considered however differ significantly.
机译：由于货运对于大都市区而言是日益严峻的挑战，因此有人呼吁将铁路货运重新整合到城市物流中。在城市物流中使用铁路系统应有助于减轻负面的外部影响，例如噪音，交通拥堵和空气污染。铁路运输的其他优势是使用独立于道路的基础设施，提供可靠的辅助运输手段以及高能源效率。概述了许多不同的概念-主要是在概念上，重点放在联运接口，即城市道路铁路枢纽或城市交叉码头。本文侧重于城市物流的铁路方面。它强调了在铁路网络容量消耗的背景下，在交通繁忙的密集使用的铁路网络中运营货运列车的运营和技术挑战。本研究的目的是确定货运列车特性对混合交通铁路网中的容量消耗的影响。它设计了一种影响模型，以识别容量消耗的驱动因素，并因此提出有效途径，以更好地利用城市铁路网络中的容量。为了使混合交通网络中的火车路径数量最大化，需要减少客运和货运铁路运输之间的技术和操作差异。由于客运是大城市地区铁路网络的主要用户，因此需要货运列车以适应客运列车的特性。速度，加速度，减速度和列车长度等因素的变化表明，货运列车的相对容量消耗可以减少。但是，所考虑因素的影响差异很大。

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