考虑换道行为的无信号控制环岛交通流建模

发布时间：2018-04-28 18:23

本文选题：交通工程 + 环岛交通流　；参考：《中国公路学报》2017年10期

【摘要】：为了研究环岛内车辆换道行为频繁发生影响环岛内交通运行效率,从而引发交通事故并阻断整个交通等问题,考虑到环岛和高速公路类似,进出车辆都在同一侧发生且车辆只有交织冲突,将环岛看成一条短的环形高速公路,用高速公路交通流模型来分析环岛内的交通流特性,并基于现有换道交通流理论,通过引入换道强度变量ε(t,x)对无信号控制的环岛内交通行为进行研究,分析其运行特性,建立考虑换道行为的多车道环岛交通流模型。研究结果表明:引入换道强度变量的无信号环岛交通流模型能真实反映环岛内交通情况;通过数值例子也验证了该模型的有效性,证实频繁的换道行为会降低环岛的车辆实际通过能力。研究是对现有文献中无信号控制环岛交通流建模的补充。
[Abstract]:In order to study the problems such as the frequent change of vehicles in the ring island affects the efficiency of the traffic around the island, thus causing traffic accidents and blocking the whole traffic, considering that the ring island is similar to the highway, The traffic in and out of the island is only intertwined on the same side. The annular island is regarded as a short annular highway. The traffic flow characteristics in the ring island are analyzed by using the freeway traffic flow model, and based on the existing theory of changing the traffic flow. In this paper, the traffic behavior of the ring island without signal control is studied by introducing the change intensity variable 蔚 TX, and the operation characteristics are analyzed, and the traffic flow model of the multi-lane ring island considering the changing traffic behavior is established. The results show that the traffic flow model of unsignaled annulus can reflect the traffic situation in the annulus, and the validity of the model is verified by a numerical example. It has been proved that frequent lane-changing behavior can reduce the actual passing capacity of the vehicles around the island. The research is a supplement to the traffic flow modeling without signal control in the existing literature.
【作者单位】：上海海事大学交通运输学院;大连理工大学数学科学学院;
【基金】：国家自然科学基金项目(71171026) 教育部高等学校博士学科点专项科研基金项目(20110041120009)
【分类号】：U491.112

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