华南理工大学学报（自然科学版）2025，Vol.53Issue(11)：62-76,15.DOI:10.12141/j.issn.1000-565X.240388
道路重要度与交通状态耦合协调关系的影响机理研究
Research on the Mechanism Influencing the Coupling Coordination Between Road Significance and Traffic State
摘要
Abstract
Urban road significance and traffic state have a complex interaction relationship,which affects people's travelling efficiency and satisfaction.In this paper,two types of traffic state indicators are extracted from the GPS trajectory data of taxis,namely the number of GPS points and the ratio of average speed during the morning traffic peak to the free-flow speed at night.Based on the theory of complex networks,the node degree,betweenness cen-trality,closeness centrality and eigenvector centrality in the topological structure are obtained to characterize the road significance at different levels,and the coupling relationship between traffic state and the four significance in-dexes is explored by using the coupling coordination degree model.With the coupling relationship as the depen-dent variable,thirteen independent variables are selected to regress the mechanism of the coupling degree using CatBoost algorithm combined with SHAP.The results show that the number of intersections,the green area,and the number of bus stops promote the coupling coordination between traffic state and road significance,and that the road separation type has a significant positive effect on the degree of coupling between traffic state and be-tweenness centrality,closeness centrality as well as node degree.In addition,for the positively uncoordinated roads,the intensities of public management land and residential land have a negative effect on the coupling co-ordination between traffic state and closeness centrality,and the intensity of residential land has a negative ef-fect on the coupling coordination between traffic state and eigenvector centrality;while for the negatively unco-ordinated roads,the intensity of residential land has a negative effect on the coupling coordination between tra-ffic state and closeness centrality.关键词
道路重要度/交通状态/CatBoost算法/耦合协调程度/出租车GPS轨迹数据Key words
road significance/traffic state/CatBoost algorithm/coupling coordination degree/taxi GPS trajectory data分类
交通工程引用本文复制引用
邓亚娟,宋思亮,崔亮斌,李雨,牛晓璐,吴琪..道路重要度与交通状态耦合协调关系的影响机理研究[J].华南理工大学学报（自然科学版）,2025,53(11):62-76,15.基金项目
国家自然科学基金项目(52272316) （52272316）
陕西省重点研发计划项目(2023-YBGY-138) Supported by the National Natural Science Foundation of China(52272316)and the Key Research and Deve-lopment Program of Shaanxi Province(2023-YBGY-138) （2023-YBGY-138）
