Negative effects of massive intercity population movement on the security of urban agglomerations

Niu, Xinyi; Yue, Yufeng; Liu, Si-han

doi:10.31497/zrzyxb.20210902

Cited by 3 publications

(3 citation statements)

References 18 publications

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“…With rapid urbanization, however, many kinds of cumulative and sudden risks to regional and urban systems also increase rapidly, including terrorist attacks, natural disasters, and so forth [11]. In other words, diverse and frequent network element flows, while facilitating the efficiency of regional production, may also lead to the transmission and spread of some crisis factors, i.e., negative network externalities [12]. The concept of resilience has become a focus of such international community disciplines as disaster alleviation, risk management, and urban planning, owing to its theoretical innovation and practical exploration in dynamic adjustment, integrated enhancement, multi-cooperation, and positive response.…”

Section: Introductionmentioning

confidence: 99%

Resilience of Urban Network Structure in China: The Perspective of Disruption

Wei

Pan

2021

IJGI

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In light of the long-term pressure and short-term impact of economic and technological globalization, regional and urban resilience has become an important issue in research. As a new organizational form of regional urban systems, the resilience of urban networks generated by flow space has emerged as a popular subject of research. By gathering 2017 data from the Baidu search index, the Tencent location service, and social statistics, this study constructs information, transportation, and economic networks among 344 cities in China to analyze the spatial patterns of urban networks and explore their structural characteristics from the perspectives of hierarchy and assortativity. Transmissibility and diversity were used to represent the resilience of the network structure in interruption scenarios (node failure and maximum load attack). The results show the following: The information, transportation, and economic networks of cities at the prefecture level and higher in China exhibit a dense pattern of spatial distribution in the east and a sparse pattern in the west; however, there are significant differences in terms of hierarchy and assortativity. The order of resilience of network transmissibility and diversity from strong to weak was information, economic, transportation. Transmissibility and diversity had nearly identical scores in response to the interruption of urban nodes. Moreover, a highly heterogeneous network was more likely to cause shocks to the network structure, owing to its cross-regional urban links in case of disturbance. We identified 12 dominant nodes and 93 vulnerable nodes that can help accurately determine the impetus behind network structure resilience. The capacity of regions for resistance and recovery can be improved by strengthening the construction of emergency systems and risk prevention mechanisms.

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Section: Introductionmentioning

confidence: 99%

Resilience of Urban Network Structure in China: The Perspective of Disruption

Wei

Pan

2021

IJGI

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“…For example, during the COVID-19 pandemic, urban agglomerations and megacities, characterized by significant population mobility, were especially vulnerable. The frequent movement of people between cities intensified the spread of the virus (Coven et al, 2023;Niu et al, 2021). Second, the development of urban networks increases the interdependence among cities, which heightens their susceptibility to cascading failures of cities (Balsa-Barreiro et al, 2020;Che et al, 2022).…”

Section: Resilience From Urban Networkmentioning

confidence: 99%

“…In response to the impact of the COVID-19 pandemic, numerous studies have explored the relationship between intercity human mobility and virus spread (Boyce & Katz, 2021;Coven et al, 2023;H. Zhang et al, 2023), suggesting that developing polycentric urban networks and establishing robust surveillance systems for monitoring intercity resource exchanges could effectively counter the negative impacts of urban networks (Jia et al, 2020;Niu et al, 2021).…”

Section: Strategies For Improving Urban Network Resiliencementioning

confidence: 99%

Defining urban network resilience: a review

Jie,

Wentao,

Yuting

et al. 2024

FURP

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As concerns over the security of intercity connections intensify, the concept of urban network resilience has increasingly captured the attention of researchers in related fields. This study aimed to clarify the varying interpretations of urban network resilience among scholars and to identify the advancements and potential gaps in existing literature. The results indicated that differences in perceptions of urban networks have led scholars to define urban network resilience from two distinct perspectives. This divergence influenced the focal points of research, as well as the methodologies, structural measurement indicators, and optimization strategies employed in these studies. We argued for the need to further explore the concept of urban network resilience by considering the nuances of different urban networks, refining methodologies for the identification, description, and measurement of resilience, and recognizing the interconnections among various types and scales of urban networks. This review can provide scholars and policymakers with comprehensive insights into urban resilience, thereby assisting them in making more informed and effective decisions.

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