Research on the Vulnerability of a City Agglomeration Compound Traffic Network Based on Two Attack Strategies

Li, Cheng-bing; Liu, Zhenyu; Liu, Xiaoyu; Xiao-yan, Yang; Jian, Meiying

doi:10.1061/jhtrcq.0000598

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“…In the approach, the stations of various transportation modes are regarded as the nodes and the interconnected edges. To study the characteristics of the composite transportation network in urban agglomeration, the adjacent stations are merged into one node and different transportation networks of various transportation modes are composed [24,25]. Based on the previous research, transportation network model is constructed using the composite concept.…”

Section: The Weighted Transportation Network Model Of Urban Agglomeramentioning

confidence: 99%

“…e contents of this paper are structured as follows. Section 2 constructs a weighted transportation network model on the actual traffic flow using the existing research methodologies [24,25]. Section 3 introduces incomplete information attack strategy, load factor, residual capacity weight of connected edge, and spatial distance weight index to establish the cascading failure model of an urban agglomeration and proposes the measurement indicator of invulnerability.…”

Section: Introductionmentioning

confidence: 99%

“…In this case, the road transportation subnet nodes |V 1 | � 263, connected edges |E 1 | � 761, and rail transportation nodes |V 2 | � 40, connected edges |E 2 | � 164. Furthermore, as mentioned above, the nodes where the passenger can transfer within 20 minutes are merged into a composite node[25]. And the composite transportation network model of urban agglomeration is constructed by combining road and rail transportation subnetworks.…”

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Invulnerability Simulation of Urban Agglomeration Passenger Transport Network under Incomplete Information Attack Strategy

Yang

Zhu

2021

Advances in Civil Engineering

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This paper explores the invulnerability of urban agglomeration transportation network under the incomplete information attack strategy. This approach employed the site mapping method to construct the urban agglomeration composite transportation network model, and the network is weighted based on the actual passenger flow. Then the nodes are defined according to the overload conditions. In addition, based on the capacity-load model, the cascading failure model of the urban agglomeration passenger transport network is constructed, and the incomplete information attack strategy and network invulnerability measure index are determined. Finally, the case of Hu-Bao-E-Yu urban agglomeration is simulated to quantify the effects of attack strategies with varied information level, node load factors, and capacity weight and distance weight of the residual connected edge. The results reveal that the network crash speed is positively related to the information span of the attacker unless the information span exceeds 0.9 or accuracy exceeds 0.6. When the information span is low, the information accuracy δ has a critical impact on the network crash speed. Moreover, in the presence of attack, high or low values of node load factor are conducive to the improvement of network invulnerability. As a scale-free network, urban agglomeration transportation network shows strong robustness to random attacks and exhibits vulnerability to deliberate attacks. The capacity weight value α and distance weight value β of residual connected edge have different effects on the network invulnerability under different information span strategies.

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Section: The Weighted Transportation Network Model Of Urban Agglomeramentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Invulnerability Simulation of Urban Agglomeration Passenger Transport Network under Incomplete Information Attack Strategy

Yang

Zhu

2021

Advances in Civil Engineering

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Research on the Vulnerability of a City Agglomeration Compound Traffic Network Based on Two Attack Strategies

Cited by 1 publication

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Invulnerability Simulation of Urban Agglomeration Passenger Transport Network under Incomplete Information Attack Strategy

Invulnerability Simulation of Urban Agglomeration Passenger Transport Network under Incomplete Information Attack Strategy

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