Journal of Dalian Maritime University >
2021 , Vol. 47 >Issue 1: 28 - 36
DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2021.01.004
Network characteristics and robustness analysis of high level waterway network in the Yangtze River Delta
Received date: 2020-11-09
Revised date: 2020-12-20
Online published: 2020-12-20
In order to understand the characteristics of the Yangtze River Delta high-level waterway network, and facilitate the maintenance of the waterway and the emergency response capability of the accidents, the characteristics of the Yangtze River Delta high-level waterway network and robustness were analyzed based on the complex network theory. A weighted network topology model of Yangtze River Delta high-level waterway network considering the navigation grade was established to analyze the statistical characteristics of the network and identify the key nodes and waters segment of waterway network. The variation law of the waterway network under three attack modes, including random attacks, attacks based on edge strength, and intentional attacks based on the edges betweenness centrality of the waterway network was simulated. The results show that the Yangtze River Delta high-level waterway network has the characteristics of a scale-free network; there are key nodes and waterway segments in the waterway network, that need to strengthen management and maintenance; the waterway network has strong robustness under random attacks; when the network efficiency drops to 50%, the number of the network can withstand intentional attacks II that the network can bear is about 30% of that under intentional attacks I, and about 25% of that under random attacks; under intentional attack II, the network robustness is poor, and the robustness under intentional attack I is better than intentional attack II, and its robustness is more biased towards random attacks. The analysis results provide reference significance for the planning and management of the Yangtze River Delta high-level waterway network, ensuring the smoothness of the waterway network and the safety of maritime transportation, and promoting the development of maritime transportation.
LOU Nai-yuan , HUANG Chang-hai , CHEN Yu-li , LUAN Yang , YUAN Jia-heng . Network characteristics and robustness analysis of high level waterway network in the Yangtze River Delta[J]. Journal of Dalian Maritime University, 2021 , 47(1) : 28 -36 . DOI: 10.16411/j.cnki.issn1006-7736.2021.01.004
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