交通运输工程与信息学报2025，Vol.23Issue(3)：171-184,14.DOI:10.19961/j.cnki.1672-4747.2025.02.014
车辆换道的时空影响分析:交通安全、效率和油耗视角
Spatiotemporal impact analysis of lane changing:perspectives on traffic safety,efficiency,and fuel consumption
摘要
Abstract
[Background]Lane changing,a crucial microlevel behavior in vehicle operation,plays a significant role in traffic flow.Understanding its spatiotemporal impact is essential for effective traf-fic management optimization.However,existing studies have primarily focused on the instantaneous effects of lane changing,neglecting its sustained influence over time and space,resulting in an in-complete quantification of its impact on traffic flow.[Objective]This study aims to reveal the multi-dimensional impact of discretionary lane-changing on the safety,efficiency,and fuel consumption of upstream traffic in both the original and target lanes,providing a theoretical foundation for optimiz-ing driver lane-changing decisions and traffic management strategies.[Method]A framework of"da-ta processing-spatiotemporal impact definition-construction of multidimensional evaluation metrics-statistical analysis"is used.By combining metrics such as the time-exposed time-to-collision,fuel consumption,and Edie's generalized flow,this study quantitatively analyzes the spatiotemporal im-pact of a single lane change.[Data]Empirical analysis was conducted using the open-source Zen Traffic Data dataset,which includes 16 h of vehicle trajectory data from three typical two-lane high-way segments in Japan:Ikeda Route 11,Wangan Route 4,and Higashiosaka Route 13.The vehicles followed the keep-left traffic rule.The right lane is the passing lane and the left lane is the driving lane.[Conclusions]This study shows that lane changes have different impacts depending on the lane type(left vs.right)and target lane.Lane changes from right to left cause a significantly higher safety impact on upstream vehicles in the original lane compared with lane changes from left to right.Lane changes from left to right pose higher safety risks to upstream vehicles in the target lane than lane changes from right to left.In addition,lane changes from right to left demonstrated a greater poten-tial for reducing fuel consumption than lane changes from left to right.Despite the safety risks,lane changes exhibited a flow gain effect,increasing the flow rates by 2.51%and 5.17%in the original and target lanes,respectively.Regarding fuel consumption,most lane-change behaviors contribute to reducing fuel consumption for upstream vehicles in both the original and target lanes.[Application]The proposed method for quantifying the spatiotemporal impacts of lane-changing can support auton-omous vehicle lane-changing decision algorithms.By predicting the real-time effects of lane changes on surrounding vehicles,autonomous vehicles can make more rational lane-changing decisions that minimize disruptions while optimizing traffic flow.关键词
公路运输/换道影响/时空范围量化/交通安全/交通效率/油耗Key words
highway transportation/lane-changing impact/spatiotemporal range quantification/traf-fic safety/traffic efficiency/fuel consumption分类
交通工程引用本文复制引用
邹加,侯康宁,郑芳芳,贺正冰..车辆换道的时空影响分析:交通安全、效率和油耗视角[J].交通运输工程与信息学报,2025,23(3):171-184,14.基金项目
四川省科技厅项目(2025YFHZ0193) （2025YFHZ0193）
