总第195期Abstract:Toexplorethelanechangingbehaviorcharacteristicsofvehiclesattheentranceofurbansignalizedintersection,thispaperextractedtrajectorydatausingvideocapturedbytheUnmannedAerialVehicle(UAV)andanalyzedthemacroscopicandmicro-scopiccharacteristics.Theresultsshowthatforcedlanechangebehavioroccursmostlyat60m~90mfromthestoplineandfreelanechangebehavioroccursat90m~120m.Thelanechangingtimeconcentratesbetween4.5s~5.5s.Theaveragetimeofforcedlanechangeis4.58sandthefreelanechangetimeis3.81s.Forcedlanechangebehaviorismoreinfluencedbytheinsertablegapoftargetlaneandthespeeddifferencebetweenthefrontandrearvehicles,buttheoveralldistributionisrelativelydispersed.Thefreelanechangingbe-haviorpursuesdrivingefficiency,thetrafficconditionsofthetargetlaneisoftenbetterthanthatoftheoriginallane,andthelanechang-ingbehaviorismainlyaffectedbytherelativedistanceandspeedofthevehiclesinfrontoftheoriginallane.Theresultsofthispapercanprovideamethodologicalreferenceforthestudyofurbanintersectionsandatheoreticalbasisforthemanagementandcontrolofintersec-tions.Keywords：intersectionentrance,lanechangingbehavior,vehicletrajectory,trafficcharacteristics文章编号：1005-0574-（2023）03-0053-05DOI:10.19332/j.cnki.1005-0574.2023.03.012基于轨迹数据的交叉口进口道车辆换道行为特性分析张婉婷1，杨明明2，张誓童1（1.内蒙古工业大学土木工程学院，内蒙古呼和浩特010000；2.内蒙古工业大学航空学院）摘要：为探索城市信号交叉口进口道范围内机动车换道行为特性，利用无人机拍摄视频提取车辆换道轨迹数据，分析了进口道车辆换道行为的宏观和微观特性。研究结果表明：强制换道行为多发生在距离停车线60m~90m处，自由换道行为在90m~120m处；换道时间集中分布在4.5s~5.5s之间，其中强制换道的平均时间为4.58s，自由换道时长为3.81s；强制换道行为主要受目标车道的可插入间隙及前后车辆的速度差影响，但整体来看分布较为分散；自由换道行为追求行车效率，目标车道的交通运行状况往往要优于原车道，换道行为主要受到原车道前车的相对距离和速度影响。本研究成果可以为城市交叉口的理论研究提供方法参考，为进口道的管理与控制提供理论基础。关键词：交叉口进口道；换道行为；车辆...
