个体视角下三元左转车道交通分布评价的组合方法

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2021-05-04 DOI:10.3846/TRANSPORT.2021.14676

Li Li, Dong Zhang, Xiaoyun Cheng, Ke Wang, Guiping Wang

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引用次数: 0

摘要

本研究分析了信号交叉口左转弯三车道(tltl)上由于驾驶员的车道偏好不平等而导致的交通分布不平衡。为了在多车道交通流和单个车道选择之间建立统计联系，将车道量格式化为组合数据，以服从和常数约束。分别建立了单因素和双因素方差分析(CANOVA)模型，以估计一个因素对多车道交通分布的独立影响及其与其他因素的联合影响。车体构成是模型的因变量，影响左转弯驾驶员车道选择的几何设计和交通控制因素是模型的自变量。结果表明，车辆转弯曲线、上游路段长度、三次左转标志位置、信号相位/周期长度等因素的变化会影响交通分布，并在一定程度上达到平衡。一些因素对的共同作用可以改善交通分配的不平衡，而另一些则不起作用。

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A COMPOSITIONAL APPROACH FOR TRAFFIC DISTRIBUTION EVALUATION OF TRIPLE LEFT-TURN LANES FROM AN INDIVIDUAL PERSPECTIVE

This study analysed unbalanced traffic distribution on Triple Left-Turn Lanes (TLTLs) at signalized intersections that is caused by left-turn drivers’ unequal lane preferences. To develop statistical bonding between the multilane traffic flow and individual lane choices, the lane volumes are formatted as compositional data to subject the sum-constant constraint. One-way and two-way Compositional ANalysis Of VAriance (CANOVA) models were formulated respectively to estimate the independent effect of one factor and its joint effects with other factors on the multilane traffic distribution. TLTL volume composition was the dependent variable of the models, while the factors of geometric design and traffic control that could affect left-turn drivers’ lane choice were the independent variables. Results indicate that variance of vehicle turning curve, length of the upstream segment, the location of triple left-turn sign, signal phase / cycle length, could affect the traffic distribution, and its balance could be achieved at specific levels of a factor. The joint effects of some factor couples could improve the unbalanced traffic distribution while others could not work.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.