摘要
在地铁延误与中断事件频发的背景下,针对常见应急策略的缺点,提出了一种基于韧性理论的地铁线路局部中断事件应急策略。首先,从理论上分析了突发事件下的地铁线路性能演化过程;其次,利用线路连通率、抗延误指数与客流保有率等指标构建了地铁线路韧性评估模型;最后,针对常见的地铁线路单侧轨道局部中断事件,以提升地铁线路韧性为目标提出了一种多区间单轨双向运行应急策略。该策略将事故路段相反方向的可运行轨道划分为若干区间,每个区间内有一辆列车以单轨双向运行模式运行。对工作日早高峰长沙地铁4号线进行实例分析,评价所提策略的有效性,结果表明:在面临突发事件时,大部分乘客的等待时间集中于5~7 min,乘客等待率在10 min内会下降至50%以下;与传统的小交路运行方案和单轨双向运行方案相比,多区间单轨双向运行方案的客流保有率分别提升了42.4%与12.7%,线路韧性分别提升145%和50%。
To tackle frequent subway delays and interruptions,to address the shortcomings of common emergency strategies,in this study,an emergency strategy for localized subway line interruptions was proposed based on resilience theory.Firstly,the evolution process of subway line performance during emergencies were thoretically analyzed.Subsequently,a resilience evaluation model for subway lines was constructed using indicators such as line connectivity,delay resistance index,and passenger retention rate.Finally,aiming to enhance subway line resilience,a multi-section single-track bidirectional operation emergency strategy was proposed for common incidents of partial interruption on one side of subway tracks.This strategy divided the operable track in the opposite direction of the accident site into several sections,with a train operating in a single-track bidirectional mode within each section.To assess the effectiveness of the proposed strategy,a case study was conducted on the Line 4 of the Changsha subway during weekday morning peak hours.The results indicated that during emergencies,the majority of passengers experienced wait times concentrated within 5-7 minutes,with passenger waiting rates dropping below 50%within 10 minutes.Compared to traditional shuttle operation and single-track bidirectional operation schemes,the multi-section single-track bidirectional operation scheme improved passenger retention rates by 42.4%and 12.7%,respectively,with a corresponding increase in line resilience of 145%and 50%.
作者
陈玺阳
刘晨辉
刘令
彭海波
张望
CHEN Xiyang;LIU Chenhui;LIU Ling;PENG Haibo;ZHANG Wang(College of Civil Engineering,Hunan University,Changsha 410082,China;Hunan Geospatial Information Engineering and Technology Research Center,Changsha 410007,China;Key Laboratory of New Technology for Construction of Cities in Mountain Area,Ministry of Education,Chongqing University,Chongqing 400045,China;Transportation Research Center,Hunan University,Changsha 410082,China;Changsha Planning&Design Survey Research Institute,Changsha 410007,China;The Third Surveying and Mapping Institute of Hunan Province,Changsha 410007,China)
出处
《郑州大学学报(工学版)》
北大核心
2025年第3期82-89,共8页
Journal of Zhengzhou University(Engineering Science)
基金
山地城镇建设与新技术教育部重点实验室开放基金(LNTCCMA-20230102)
湖南省地理空间信息工程技术研究中心开放课题(HNGIET2023002)
中央高校基本科研业务费专项资金项目(531118010636)。
关键词
城市轨道交通
韧性评估
恢复策略
客流损失
多项式回归
urban rail transit
resilience assessment
recovery strategy
passenger flow loss
polynomial regression
作者简介
通信作者:刘晨辉(1987-),男,山东济宁人,湖南大学教授,博士,主要从事新能源汽车与公共交通运营研究,E-mail:chenhuiliu@hnu.edu.cn。
