Assessing the structural resilience of the global crude oil maritime transportation network: A motif-based approach from network to ports

IF 5.7 2区 工程技术 Q1 ECONOMICS
Ruibin Si , Peng Jia , Haijiang Li , Xueting Zhao
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引用次数: 0

Abstract

The local structure has a decisive impact on the structural resilience of the Global Crude Oil Maritime Transportation Network (GCOMTN). However, existing studies ignore the significant local characteristics of ports that arise from the unique transport patterns of crude oil tankers. In this study, we construct the GCOMTN using AIS data of crude oil tankers from 2020 and develop a framework for assessing structural resilience at a finer granularity. Specifically, we introduced motif structures to characterize local structural features and proposed a sub-network perspective to evaluate the structural resilience of ports. We then explore the structural resilience of both network-wide and port-level under three intentional attack scenarios. The results indicate that closed motifs are the most vulnerable, disappearing rapidly under intentional attacks. The GCOMTN structure is particularly sensitive to failures at strategically located ports. Conversely, individual ports demonstrate greater resilience in such scenario, even though their local structures tend to be inherently unstable. This study offers valuable insights for the International Maritime Organization (IMO) to collaborate effectively with port authorities, ensuring alignment in the goal of maintaining stable crude oil transportation.
评估全球原油海上运输网络的结构弹性:从网络到港口的基于图案的方法
局部结构对全球原油海上运输网络(GCOMTN)的结构弹性具有决定性影响。然而,现有的研究忽略了原油油轮独特的运输方式所产生的港口显著的地方特征。在本研究中,我们使用2020年以来的原油油轮AIS数据构建了gcomn,并开发了一个更细粒度的结构弹性评估框架。具体而言,我们引入motif结构来表征局部结构特征,并提出了子网络视角来评估港口的结构弹性。然后,我们在三种故意攻击场景下探讨了网络范围和端口级别的结构弹性。结果表明,封闭基序是最脆弱的,在故意攻击下迅速消失。gcomn结构对战略位置港口的故障尤其敏感。相反,个别港口在这种情况下表现出更大的弹性,尽管它们的本地结构往往本身就不稳定。这项研究为国际海事组织(IMO)与港口当局有效合作提供了有价值的见解,确保保持稳定原油运输的目标一致。
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来源期刊
CiteScore
11.50
自引率
11.50%
发文量
197
期刊介绍: A major resurgence has occurred in transport geography in the wake of political and policy changes, huge transport infrastructure projects and responses to urban traffic congestion. The Journal of Transport Geography provides a central focus for developments in this rapidly expanding sub-discipline.
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