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Impacts of load distribution and lane width on pavement rutting performance for automated vehicles
International Journal of Pavement Engineering ( IF 3.8 ) Pub Date : 2021-06-07 , DOI: 10.1080/10298436.2021.1935938
Ali Yeganeh 1 , Bram Vandoren 1 , Ali Pirdavani 1, 2
Affiliation  

ABSTRACT

Over the recent years, considerable attention has been drawn to intelligent driving technologies and particularly to automated vehicles (AVs). The deployment of AVs would provide the opportunity to have more control over the dynamics of the vehicle, including its lateral movement, which can affect the pavement's long-term rutting performance. The controlled lateral movement of the AVs may also imply a reduced lane width. This paper evaluates the impacts of dedicating a reduced lane width to AVs on pavement rutting performance, considering two lateral movement modes for AVs; zero-wander and uniform-wander. A finite element model was developed using ABAQUS software. The rutting simulation results of this study showed that the abrupt changes in the loading schemes of the zero- and uniform-wander modes cause considerable accumulated rutting in the edges of the loading areas. This is significantly greater than the total rutting induced by the human-driven vehicles (HDVs) following the normal-wander mode, which causes a compensated rutting behaviour by a gradual increase in loading time. Furthermore, the comparison between rutting depths in different lane widths reveals that when dedicating the narrower lane for AVs with a uniform-wander distribution, the pavement's total rutting depth would remarkably increase compared to the wider lanes.



中文翻译:

载荷分布和车道宽度对自动驾驶车辆路面车辙性能的影响

摘要

近年来,智能驾驶技术尤其是自动驾驶汽车 (AV) 备受关注。AV 的部署将提供机会更好地控制车辆的动力学,包括其横向运动,这会影响路面的长期车辙性能。AV 的受控横向移动也可能意味着减少车道宽度。本文评估了减少自动驾驶车道宽度对路面车辙性能的影响,考虑了自动驾驶汽车的两种横向运动模式;零漂移和均匀漂移。使用 ABAQUS 软件开发了有限元模型。本研究的车辙模拟结果表明,零漂移模式和均匀漂移模式加载方案的突然变化导致加载区域边缘出现相当大的累积车辙。这明显大于正常漫游模式下人类驾驶车辆 (HDV) 引起的总车辙,后者通过逐渐增加装载时间来补偿车辙行为。此外,不同车道宽度下车辙深度的比较表明,当将较窄的车道专用于具有均匀漂移分布的 AV 时,与较宽的车道相比,路面的总车辙深度将显着增加。这会通过逐渐增加加载时间来补偿车辙行为。此外,不同车道宽度下车辙深度的比较表明,当将较窄的车道专用于具有均匀漂移分布的 AV 时,与较宽的车道相比,路面的总车辙深度将显着增加。这会通过逐渐增加加载时间来补偿车辙行为。此外,不同车道宽度下车辙深度的比较表明,当将较窄的车道专用于具有均匀漂移分布的 AV 时,与较宽的车道相比,路面的总车辙深度将显着增加。

更新日期:2021-06-07
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