Modeling discretionary lane-changing behavior on urban streets considering drivers’ heterogeneity

Modeling discretionary lane-changing behavior on urban streets considering drivers’ heterogeneity
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考虑驾驶员异质性,对城市街道上的自主变道行为进行建模

DOI:
10.1080/19427867.2019.1581465
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发表时间:
2020-03
期刊:
Transportation Letters
影响因子:
--
通讯作者:
Yao R.H.
Yao R.H.
中科院分区:
其他
文献类型:
--
作者:
Zhou H.M.;Sun Y.;Qin X.;Xu X.J.;Yao R.H.

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摘要城市道路车道变更特别频繁,不仅影响交通运行,还会对交通安全造成负面影响。本研究利用大连市西南路的车辆行驶轨迹数据,对城市道路环境中任意变道的影响因素进行了研究。标准Logit模型和混合Logit模型都适用于数据,这明显确定了几个关键因素。混合Logit模型在模型拟合方面优于标准Logit模型。结果表明,驾驶员在目标车道上的速度差和目标车道上的距离差距上存在异质性。进一步进行敏感性分析,以量化统计上有意义的变量的影响程度。研究结果支持酌情变道的概念和目的,即寻求速度优势和/或更令人满意的驾驶环境。
ABSTRACT Lane changes are particularly frequent on urban streets, which not only impact traffic operations, but also cause negative effects on safety. This study uses vehicle trajectory data collected from Southwest Road in Dalian, China, to investigate the influential factors of discretionary lane changing in an urban road environment. Both the standard logit model and mixed logit model were fitted to the data, which evidently identified several key factors. The mixed logit model outperformed the standard logit model in terms of model fit. The results suggest that driver heterogeneity is present on the speed differentials of the subject vehicle and the leading vehicles, and the distance gap in the target lane. A sensitivity analysis was further conducted to quantify the degree of influence of the statistically significant variables. The findings support the notion and purpose of discretionary lane changing, i.e. seeking a speed advantage and/or a more satisfactory driving environment.
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