Lane-changing (LC) behavior describes the lateral movement of the vehicle from the current-lane to the target-lane while proceeding forward. Among the many research directions, LC duration (LCD) measures the total time it takes for a vehicle to travel from the current lane to the target lane, which is an indispensable indicator to characterize the LC behavior. Although existing research has made some achievements, less attention has been paid to the research of heavy vehicles' LCD. Therefore, this paper aims to further explore the LCD between heavy vehicles and passenger cars. LC trajectories are extracted from the newly-released HighD dataset, which contains of 16.5 hours of measurement and over 11,000 vehicles. The survival function of LCD has been estimated, and the characteristic has been analyzed. Thereafter, the Accelerated Failure Time model is introduced to explore the influencing factors. Results demonstrate that the MST value of passenger cars and heavy vehicles is about 5.51s and 6.08s. The heavy vehicles would maintain a longer time-headway and distance-headway with preceding vehicle when performing LC. Nevertheless, these two factors do not significantly affect the LCD of heavy vehicles. Finally, the results and the modeling implications have been discussed. We hope this paper could contribute to our further understanding of the LC behaviors for heavy vehicles and passenger cars.
翻译:换道(LC)行为描述了车辆在前进过程中从当前车厢到目标车厢的横向移动。在许多研究方向中,LC长度(LCD)测量了车辆从当前车道到目标车道的总时间,这是显示LC行为的一个不可或缺的指标。虽然现有的研究取得了一些成就,但对重型车辆LCD的研究却不太重视。因此,本文件旨在进一步探索重型车辆和客车之间的LCD。LC轨迹是从新发布的高D数据集中提取的,该数据集包含16.5小时的测量和11 000多部车辆。LCD的生存功能已经进行了估计,并分析了其特征。随后,采用了加速失败时间模型来探索影响因素。结果显示,客车和重型车辆的MST价值约为5.51和6.08。重型车辆在使用LC时将保持更长的时头和偏头路。然而,这两个因素并没有大大影响我们对重载车辆的希望。最后,我们讨论的LC型汽车的希望。