智能城市2026，Vol.12Issue(5)：6-10,5.DOI:10.19301/j.cnki.zncs.2026.05.002
基于改进核度的城市路网hub节点辨识方法
Urban road network hub node identification method based on improved coreness
摘要
Abstract
The effective identification of hub nodes in urban road traffic networks is of great significance for emergency evacuation and coordinated control.Existing methods struggle to comprehensively balance topological structure and traffic flow characteristics,and the acquisition of relevant parameters is challenging.This paper,grounded in complex network theory,defines the concepts of improved node degree and node spatial kernel based on roadway attributes,and develops a hub node identification method that integrates topological structure,spatial geographic attributes,and traffic flow characteristics.A regional road network in Changchun City is selected for empirical validation.The results show that the proposed method is consistent with existing methods in hub node identification but yields a more interpretable ranking.Traffic flow simulation results indicate that after a failure of the identified hub node(intersection 2),the network experiences significant degradation in travel time,number of stops,and total delay,with a weighted indicator value of 14.95.If this node fails,the average path distance in the network increases by up to 0.31,and network size is markedly reduced.The proposed identification method based on improved kernel degree can effectively identify hub nodes in urban road networks,offering valuable insights for emergency management,subarea division,and coordinated control of transportation networks.关键词
交通工程/城市路网/hub节点/核度/节点重要性Key words
traffic engineering/urban road network/hub node/coreness/node importance分类
交通工程引用本文复制引用
孟莉华,王世广..基于改进核度的城市路网hub节点辨识方法[J].智能城市,2026,12(5):6-10,5.基金项目
安徽省哲学社会科学规划项目(AHSKQ2022D075) （AHSKQ2022D075）
