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中文摘要：
车辆换道行为的分析是道路交通流理论研究的重要组成部分。文中利用微波雷达与路侧激光检测器检测对快速路车辆换道的行车轨迹以及交通流状态进行了实地调查,数据分析结果表明：不同交通流量条件下,驾驶员对车道的选择具有一定的偏好性,会导致路段不同车道上的交通量分布具有显著的差异性。换道过程中,目标车道前车临界间距以及后车临界间距的变化率也不统一。
英文摘要：
The Analysis of lane-changingbehaviorsis an essentialpart of road traffic flow theory. In this paper,the microwave radar and the roadside laser detector are selected to detect the trajectory data of lane-changing behaviors in multilane highway and the characters of traffic flow. The analysis results of the survey data show that under different traffic flow conditions,the preference of lane changing behaviors aredifferent,and the distribution of traffic volume in different lanes has significant differences. And the preference of lane-changing behaviors are one of the main reasons for the difference of traffic flow distribution. There is also a significant difference in critical space headway between the lead and lag vehicles.
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