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Consideration of transport logistics hubs in freight transport demand models

机译:在货运需求模型中考虑运输物流枢纽

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Abstract Introduction The increasing importance of logistics and its effects on transportation processes have been considered in freight transport demand modelling by new model developments incorporating several logistics aspects. However, transport logistics hubs – hubs without storage function that are primarily used for transhipment – seem to be not considered adequately in most freight models although they are crucial for freight transport. Currently it is not apparent which models do consider transport logistics hubs and how they do. The aim of this article is, therefore, to review how transport logistics hubs are considered in freight transport demand models and to discuss remaining gaps and challenges. Methods Based on an extensive literature review a broad and internationally?oriented analysis of transport models has been conducted. More than 100 models were examined regarding their consideration of logistics in general and transport logistics hubs in particular. Results The article points out the major importance of transport logistics hubs within freight transport and, thus, underpins the fact that they should also be considered sufficiently in freight demand models. It reveals that there are numerous models in application worldwide and that most of these models do not consider logistics or hubs. Only few models integrate logistics hubs, in general, and transport logistics hubs in particular. Furthermore, the consideration of transport logistics hubs within these models differs quantitatively (number and types of hubs) but also qualitatively (detail of hub integration) – also depending on model properties (e.g., scale of analysis, resolution or level of aggregation). Conclusions Within freight transport processes, transport logistics hubs gained growing empirical significance in the recent past. This implies a major relevance to consider them in demand modelling, too. However, the article reveals that the integration of transport logistics hubs lags behind their empirical significance and that there are certain restrictions which hamper an adequate integration. The potential of many models is limited by reason of data availability. The lack of detailed data remains a major challenge that is, frankly, not new to the freight modelling community. Closing this data gap will help to consider transport hubs adequately and, thus, increase accuracy of models which would enable policy decision-makers to come to more effective decisions.
机译:摘要简介在货运需求建模中,已考虑到物流的日益重要意义,这是通过结合多个物流方面的新模型开发来进行的。但是,运输物流枢纽-主要用于转运的没有存储功能的枢纽-在大多数货运模型中似乎没有得到适当考虑,尽管它们对货运至关重要。目前尚不清楚哪种模型会考虑运输物流枢纽以及它们如何运作。因此,本文的目的是回顾在货运需求模型中如何考虑运输物流枢纽,并讨论剩余的差距和挑战。方法基于广泛的文献综述,对运输模型进行了广泛且国际化的分析。审查了100多个模型,以考虑它们在一般物流中的考虑,尤其是在运输物流枢纽中。结果这篇文章指出了货运物流枢纽在货运中的重要地位,因此,在货运需求模型中也应充分考虑它们的事实。它揭示了全世界有许多模型在应用,并且这些模型中的大多数都没有考虑物流或枢纽。通常,只有很少的模型集成了物流枢纽,特别是运输物流枢纽。此外,这些模型中运输物流枢纽的考虑在数量上(枢纽的数量和类型)有所不同,在定性上(枢纽整合的细节)也有所不同-还取决于模型属性(例如,分析规模,分辨率或汇总水平)。结论在货运过程中,运输物流枢纽在最近的经验中具有越来越重要的意义。这也意味着在需求建模中也要考虑它们。但是,该文章显示,运输物流枢纽的整合落后于它们的经验意义,并且存在一些限制充分整合的限制。由于数据的可用性,许多模型的潜力受到限制。缺乏详细数据仍然是一个主要挑战,坦率地说,这对货运建模界来说并不陌生。弥补这一数据差距将有助于充分考虑运输枢纽,从而提高模型的准确性,这将使政策决策者能够做出更有效的决策。

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