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Keywords = multisubnet composited complex network

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13 pages, 3873 KB  
Article
Robustness Analysis of an Urban Public Traffic Network Based on a Multi-Subnet Composite Complex Network Model
by Gengxin Sun
Entropy 2023, 25(10), 1377; https://doi.org/10.3390/e25101377 - 25 Sep 2023
Cited by 20 | Viewed by 3002
Abstract
An urban public traffic network is a typical high-order complex network. There are multiple types of transportation in an urban public traffic network, and each type has different impacts on urban transportation. Robustness analyses of urban public traffic networks contribute to the safe [...] Read more.
An urban public traffic network is a typical high-order complex network. There are multiple types of transportation in an urban public traffic network, and each type has different impacts on urban transportation. Robustness analyses of urban public traffic networks contribute to the safe maintenance and operation of urban traffic systems. In this paper, a new cascading failure model for urban public traffic networks is constructed based on a multi-subnet composite complex network model. In order to better simulate the actual traffic flow in the composite network, the concept of traffic function is proposed in the model. Considering the different effects of various relationships on nodes in the composite network, the traditional cascading failure model has been improved and a deliberate attack strategy and a random attack strategy have been adopted to study the robustness of the composite network. In the experiment, the urban bus–subway composite network in Qingdao, China, was used as an example for simulation. The experimental results showed that under two attack strategies, the network robustness did not increase with the increase in capacity, and the proportion of multiple relationships had a significant impact on the network robustness. Full article
(This article belongs to the Section Complexity)
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14 pages, 2654 KB  
Article
Study of Cascading Failure in Multisubnet Composite Complex Networks
by Gengxin Sun, Chih-Cheng Chen and Sheng Bin
Symmetry 2021, 13(3), 523; https://doi.org/10.3390/sym13030523 - 23 Mar 2021
Cited by 51 | Viewed by 6072
Abstract
Current research on the cascading failure of coupling networks is mostly based on hierarchical network models and is limited to a single relationship. In reality, many relationships exist in a network system, and these relationships collectively affect the process and scale of the [...] Read more.
Current research on the cascading failure of coupling networks is mostly based on hierarchical network models and is limited to a single relationship. In reality, many relationships exist in a network system, and these relationships collectively affect the process and scale of the network cascading failure. In this paper, a composite network is constructed based on the multisubnet composite complex network model, and its cascading failure is proposed combined with multiple relationships. The effect of intranetwork relationships and coupling relationships on network robustness under different influencing factors is studied. It is shown that cascading failure in composite networks is different from coupling networks, and increasing the strength of the coupling relationship can significantly improve the robustness of the network. Full article
(This article belongs to the Special Issue Selected Papers from IIKII 2020 Conferences II)
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