CAJ | 학술논문

分析城市快速路出口匝道附近的交通流率特征，对确定通行能力和提出管理措施具有重要意义。针对城市快速路线圈检测数据，利用方差分析和配对样本检验分析比较出口匝道瓶颈区域各车道之间交通拥挤前后的流率变化。发现内侧车道的交通流率在拥挤之前低于外侧车道，而在拥挤期间高于外侧车道。外侧车道在拥挤之后的排队消散流率会显著降低，而内侧车道的消散流率反而增加，即存在早发性交通拥挤的现象，并通过流量‐速度关系图对内外车道交通流特征的差异进行阐释。
분석성시쾌속로출구잡도부근적교통류솔특정，대학정통행능력화제출관리조시구유중요의의。침대성시쾌속로선권검측수거，이용방차분석화배대양본검험분석비교출구잡도병경구역각차도지간교통옹제전후적류솔변화。발현내측차도적교통류솔재옹제지전저우외측차도，이재옹제기간고우외측차도。외측차도재옹제지후적배대소산류솔회현저강저，이내측차도적소산류솔반이증가，즉존재조발성교통옹제적현상，병통과류량‐속도관계도대내외차도교통류특정적차이진행천석。
It’s significant to analyze the characteristics of traffic flow rate at urban expressway bottle‐neck near off‐ramp w hen determining road capacity and proposing traffic management measures .Based on loop detector data ,one‐way ANOVA (Analysis of Variance) and paired samples test are used to analyze the changes of traffic flow rate in each lane of an urban expressway bottleneck near off‐ramp when the traffic congestion occurs .It shows that the pre‐queue flow of inside lanes are lower than outside lanes’ before traffic congestion ,but higher than outside lanes’ during traffic congestion peri‐od .And the queue discharge flow of outside lanes will significantly reduce after congestion ,but inside lanes’ will significantly improve which means that the inside lanes experience an early‐onset of traffic congestion .Furthermore ,the flow‐velocity diagrams are used to explain the differences of traffic flow features between inside and outside lanes .