基于时空关联度的路网关键路径识别模型与方法  

Critical Path Identification Models and Methods of Road Network Based on the Time-space Correlation Degree

作　　者：钱晨 胡建伟 QIAN Chen;HU Jianwei(Traffic Police Detachment of Hefei Public Security Bureau,Hefei 230000,China;Transport Bureau of Guichi District,Chizhou 247100,China)

机构地区：[1]合肥市公安局交通警察支队,安徽合肥230000 [2]池州市贵池区交通运输局,安徽池州247100

出　　处：《中国人民公安大学学报(自然科学版)》2025年第1期39-45,共7页Journal of People’s Public Security University of China(Science and Technology)

基　　金：国家重点研发计划资助项目(2020YFB1600500)。

摘　　要：针对路网交通运行规律不易把控、关键路径隐匿难解等现实情境交通问题,基于网络拓扑结构的解析,量化邻接节点路径关联度与所属路径之间的影响关系,构建了邻接节点路径关联度计算模型。基于时空相关函数的改进创建了路径时空关联度计算方法,进而以时空相关函数定量分析关联路径交通状态影响度的时延变化,构建了路网关键路径识别模型。案例分析表明,基于时空关联度的路网关键路径的识别方法与计算模型可实现不同时间延迟条件下关联路径交通状态之间的影响程度量化分析,进而实现面向中小型城市出行规律的路网关键路径精准识别与快速提取,预期可为城市交通运行机制的动态化运作、管控策略的全局化调整、评估手段的多元化发展奠定坚实基础。Based on the analysis of road network topology structure,a calculation model for the path correlation degree of adjacent node is constructed to address the practical traffic problems,such as difficult control of road network traffic operation rules and difficult concealment of critical paths.Moreover,the influence relationship between the path correlation degree of adjacent node and the affiliated path is quantified.Based on the improvement of time-space correlation function,a calculation method of the time-space path correlation degree is created.Then,the time-space correlation function is used to quantitatively analyze the delay changes in the influence degree of associated path traffic states,and a key path identification model for road networks is constructed.The case analysis shows that the identification method and calculation model of road network critical path based on time-space correlation degree can realize quantitative analysis of the influence degree between the traffic states under different time delay conditions,and then achieve the accurate identification and rapid extraction of critical paths of the road network for small and medium-sized urban travel law,which is expected to lay a solid foundation for the dynamic operation of urban traffic operation mechanism,the overall adjustment of control strategy and the diversified development of evaluation means.

关 键 词：交通工程 关键路径 拓扑结构 路径关联度 时空相关函数 

分 类 号：D035.37[政治法律—政治学]