交通信息与安全2025，Vol.43Issue(2)：74-84,11.DOI:10.3963/j.jssn.1674-4861.2025.02.009
基于SEM的高铁点线通过能力动态耦合协调方法
A Method for Dynamic Coupling Coordination of High-speed Railway Node-line Passing Capacity Based on SEM
摘要
Abstract
This study addresses the challenges posed by multiple dynamic factors affecting the passing capacity of high-speed railway node-line systems,particularly focusing on the complex interrelationships among these factors and the difficulty in quantifying their weights.A dynamic coupling coordination method based on structural equa-tion modeling(SEM)is proposed to resolve these issues.The dynamic factors influencing high-speed railway node-line passing capacity are categorized into six subsystems:node system,line system,transportation organiza-tion,operational time,delays,and early arrivals.A PLE-SEM-based dynamic coordination model is subsequently constructed to analyze these subsystems.Operational data from the Shanghai West Station-Shanghai Station section are utilized to verify the model's validity,scientific rigor,and goodness-of-fit through measurement model and struc-tural model validation.This process identifies interaction mechanisms,directional influences,and indicator weights across subsystems while detecting capacity bottlenecks.A coupling coordination degree model is further applied to assess system-level and subsystem-level coordination states,enabling the identification of key links.The results demonstrate:①this model method is applicable for investigating the complex influence relationships among dynam-ic factors affecting the throughput capacity of high-speed railway node-line systems.It enables the identification of critical dynamic factors within subsystems of the system's throughput capacity,quantifies the influence relation-ships,and specifies the direction of impacts.②Through comprehensive factor analysis and case study calculations,the proposed method effectively identifies key factors and reveals dynamic coupling relationships among them.A to-tal of 13 direct influence paths and 9 indirect influence paths are established between subsystems,visualizing their interconnections.These results provide a basis for selecting appropriate capacity calculation parameters in practical applications.关键词
高铁点线系统/通过能力/结构方程模型/耦合协调度模型Key words
high-speed railway node-line system/passing ability/structural equation model/coupling coordination degree model分类
交通工程引用本文复制引用
张春民,朱媛婧,江雨星..基于SEM的高铁点线通过能力动态耦合协调方法[J].交通信息与安全,2025,43(2):74-84,11.基金项目
国家铁路局课题研究计划项目(KF2024-059)、甘肃省杰出青年基金项目(25JRRA142)、甘肃省青年博士基金项目(2022QB-060)资助 （KF2024-059）
