华南理工大学学报(自然科学版) ›› 2023, Vol. 51 ›› Issue (6): 42-51.doi: 10.12141/j.issn.1000-565X.220486

所属专题: 2023年交通运输工程

• 交通运输工程 • 上一篇    下一篇

风险扩散下城市群多模式交通网络的韧性演化

马书红1,2 杨磊1 陈西芳1   

  1. 1.长安大学 运输工程学院,陕西 西安 710064
    2.生态安全屏障区交通网设施管控及循环修复技术 交通运输行业重点实验室,陕西 西安 710064
  • 收稿日期:2022-08-01 出版日期:2023-06-25 发布日期:2022-12-23
  • 通信作者: 马书红(1975-),女,教授,博士生导师,主要从事交通规划、交通安全研究。 E-mail:msh@chd.edu.cn
  • 作者简介:马书红(1975-),女,教授,博士生导师,主要从事交通规划、交通安全研究。
  • 基金资助:
    国家自然科学基金资助项目(51878062);陕西省交通厅科技项目(21-13R)

Resilience Evolution of Multi-mode Transportation Network in Urban Agglomeration Based on Risk Diffusion

MA Shuhong1,2 YANG Lei1 CHEN Xifang1   

  1. 1.College of Transportation Engineering,Chang’an University,Xi’an 710064,Shaanxi,China
    2.Key Laboratory of Transport Industry of Management,Control and Cycle Repair Technology for Traffic Network Facilities in Ecological Security Barrier Area,Xi’an 710064,Shaanxi,China
  • Received:2022-08-01 Online:2023-06-25 Published:2022-12-23
  • Contact: 马书红(1975-),女,教授,博士生导师,主要从事交通规划、交通安全研究。 E-mail:msh@chd.edu.cn
  • About author:马书红(1975-),女,教授,博士生导师,主要从事交通规划、交通安全研究。
  • Supported by:
    the National Natural Science Foundation of China(51878062)

摘要:

深入分析风险扩散阶段城市群多模式交通网络的动态韧性演化特征,有助于提高城市群风险抵御能力。本研究基于复杂网络理论及其扩展理论,以城市群公路、铁路、航空网络为基础,构建城市群多模式多层次交通网络模型,将节点度、节点介数与可达性相匹配,分析其风险扩散下的静态拓扑特征;以级联失效动力学理论为基础,考虑不同阶段节点初始风险水平、风险预警阈值与风险抵御能力,根据影响风险扩散的节点与连边测度指标,构建风险动态扩散模型;考虑风险冲击下结构、功能变化特征,构建网络结构、功能韧性测度模型,并通过其耦合值表征多模式交通网络韧性性能。以关中平原城市群多模式交通网络为研究对象,运用Python Networkx和Matlab网络分析工具,就不同的风险扩散方式、网络可靠性、冗余性、鲁棒性和节点风险处理能力系数,对风险扩散阶段城市群多模式交通网络的动态韧性演化进行仿真分析。结果表明:模型结果与实际相符,提升网络可靠性、冗余性、鲁棒性和节点风险处理能力,能有效增强网络韧性;相较于基于节点测度的风险扩散方式,基于连边测度的风险扩散方式对韧性性能影响更大,说明线路层次等级分布相较于数量对城市群多模式交通网络的韧性性能影响更大;相较于单一的交通网络,多模式多层次的交通网络韧性性能整体表现更佳。

关键词: 交通工程, 城市群, 多模式交通网络, 风险扩散, 韧性演化

Abstract:

It can help improve the risk resilience of urban agglomerations to carry out in-depth analysis of the dynamic resilience evolution characteristics of multi-modal transport networks in urban agglomerations during the risk diffusion phase. Based on complex network theory and its extension theory, this study constructed a multi-modal and multi-level transportation network model for urban agglomerations based on road, railway and air networks. It matched node degree and node betweenness with accessibility, and analyzed their static topological characteristics under risk diffusion. Based on the theory of cascading failure dynamics, it considered the initial risk level, risk warning threshold and risk resilience of nodes at different stages, and constructed a risk dynamic diffusion model based on the nodes and connected edge measures affecting risk diffusion. Considering the characteristics of structural and functional changes under risk shocks, the paper constructed a network structural and functional resilience measurement model, and the resilience performance of multi-modal transport networks was represented by their coupling values. Using the multi-modal transport network of the Guan-Zhong Plain urban agglomeration as the research object, the Python Networkx and Matlab network analysis tools were used to simulate and analyze the dynamic resilience evolution of the multi-modal transport network of the urban agglomeration during the risk diffusion phase with respect to different risk diffusion methods, network reliability, redundancy, robustness and node risk handling capacity coefficients. The results show that the model results are consistent with reality. The network resilience can be effectively enhanced by improving network reliability, redundancy, robustness and node risk handling. Compared to the risk diffusion approach based on the node measure, the risk diffusion approach based on the connected edge measure has greater impact on resilience performance, suggesting that the distribution of route hierarchy levels has a greater impact on the resilience performance of multimodal transport networks in urban agglomerations compared to the number of routes. The overall resilience of a multi-modal, multi-level transport network performs better than that of a single transport network.

Key words: traffic engineering, urban agglomeration, multi-mode transportation network, risk diffusion, resilience evolution

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