| 综合交通网络链路关联度评估方法
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文章编号: 1672-5328(2025)04-0092-08
马文欣1,代磊磊2,李瑞敏1
(1. 清华大学土木工程系,北京100084;2.内蒙古自治区公安厅交通管理局,内蒙古呼和浩特010000)
摘要: 外部因素对综合交通网络的干扰会影响其服务功能,而综合交通网络中不同链路之间的替代 关联关系可以缓解这种不利影响。提出综合交通网络在链路层面替代关联关系的评估方法,可用于 识别网络脆弱性。该方法综合考虑链路地理位置与通行能力等属性,构建量化指标以表征替代关联 强度。在京津冀鲁区域高速公路、铁路和航空构成的综合交通网络中开展实证分析,结果显示:链 路替代关联度呈现显著空间异质性,受网络密度与通行能力影响明显;区域整体关联水平存在不平 衡,其中山东省平均链路关联度与网络密度均为最低;与单一交通网络相比,部分城市OD对表现 出显著的关联度增量,体现出综合交通网络多方式协同的效率优势。
关键词: 交通网络韧性;综合交通网络;链路关联度;替代关联关系;京津冀鲁区域
中图分类号: U491
文献标识码:A
Evaluation Method for Link Correlation in Comprehensive Transportation Networks
MAWenxin1, DAI Leilei2, LI Ruimin1
(1. Department of Civil Engineering, Tsinghua University, Beijing 100084, China; 2. Traffic Management Bureau of the Public Security Department of the Inner Mongolia Autonomous Region, Hohhot Inner Mongolia 010000, China)
Abstract: Disruptions caused by external factors can impair the service performance of a comprehensive transportation network. However, substitutive correlations among different links in a comprehensive transportation network can mitigate such adverse effects. This paper proposes a method that evaluates the substitutive correlations at the link level within comprehensive transportation networks, which can be used to identify network vulnerabilities. The method synthesizes link attributes—such as geographic location and traffic capacity—to construct quantitative indicators to characterize the strength of substitutability. An empirical analysis based on this method is conducted on a comprehensive highway-rail-air network in the Beijing- Tianjin-Hebei-Shandong region. The results reveal the heterogeneity in link substitutive correlations, significantly influenced by network density and link capacity. Notably, the region exhibits spatial imbalance in the overall level of substitutive correlations: Shandong Province records the lowest average link correlation and network density. Relative to single-mode transportation networks, OD pairs of certain cities display significant gains in link correlation, highlighting the efficiency advantage of multimodal collaboration in a comprehensive transportation network.
Keywords: transportation network resilience; comprehensive transportation network; link correlation; substitutive correlation; Beijing-Tianjin-Hebei-Shandong region