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An equity-based transport network criticality analysis
Transportation Research Part A: Policy and Practice ( IF 6.3 ) Pub Date : 2021-01-12 , DOI: 10.1016/j.tra.2020.12.013
Bramka Arga Jafino

Transport network criticality analyses aim at identifying important segments in a transport network. Such studies are often based on the utilitarian principle, where the criticality of a segment is assessed based on its contribution to the aggregate performance of the transport system. To allow for the use of alternative moral principles, I systematically operationalize concepts from the transport equity literature into an equity-based criticality analysis framework. There are two main ideas in this framework: calculation of equity-weighted transport demand based on distributive moral principles and adaptation of an equity-weighted user equilibrium assignment algorithm. Using the Bangladesh freight transport network as a case study, I show that different sets of transport segments emerge as being critical when different moral principles are used. The use of some pairs of moral principles, for example global equalization and proportionality, even produces a negative ranking correlation. This implies that links which are considered to be critical based on one principle are not at all critical based on the other one. Selection of a moral principle, either explicitly or implicitly, is an inevitable step in transport network criticality analysis. Hence, it is advised to use multiple moral principles or to make a deliberative selection of a moral principle, as considering alternative moral principles in a criticality analysis could expose previously overlooked transport segments.



中文翻译:

基于股权的运输网络关键性分析

传输网络的关键性分析旨在确定传输网络中的重要部分。此类研究通常基于功利主义原则,其中,根据对运输系统总体绩效的贡献来评估路段的重要性。为了允许使用替代的道德原则,我系统地将运输权益文献中的概念运用于基于权益的重要性分析框架中。该框架中有两个主要思想:基于分配道德原则的公平加权运输需求的计算和公平加权用户均衡分配算法的调整。以孟加拉国货运网络为案例研究,我表明,当使用不同的道德原则时,不同的运输部门集显得至关重要。使用某些道德原则对,例如全局均衡和比例性,甚至会产生负面的排名相关性。这意味着基于一种原理被认为是关键的链接根本就不是基于另一种原理的关键链接。无论是显式的还是隐式的,道德准则的选择都是运输网络关键性分析中不可避免的步骤。因此,建议使用多种道德原则或对道德原则进行慎重选择,因为在关键性分析中考虑替代道德原则可能会暴露先前被忽视的运输领域。这意味着基于一种原理被认为是关键的链接根本不会基于另一种原理是关键的。无论是显式的还是隐式的,选择道德原则都是运输网络关键性分析中不可避免的步骤。因此,建议使用多种道德原则或对道德原则进行慎重选择,因为在关键性分析中考虑替代道德原则可能会暴露先前被忽视的运输领域。这意味着基于一种原理被认为是关键的链接根本不会基于另一种原理是关键的。无论是显式的还是隐式的,选择道德原则都是运输网络关键性分析中不可避免的步骤。因此,建议使用多种道德原则或对道德原则进行慎重选择,因为在关键性分析中考虑替代道德原则可能会暴露先前被忽视的运输领域。

更新日期:2021-01-12
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