基于城市高架桥入口处抢道行为的交通流模型

发布时间：2018-03-07 22:39

本文选题：交通流　切入点：元胞自动机　出处：《系统工程学报》2015年01期 　论文类型：期刊论文

【摘要】：在对高架桥入口处驾驶人抢道行为特征分析基础上,提出R车道主动抢道和M车道被动抢道规则的三车道(L,M,R)元胞自动机交通流模型,并进行数值模拟,给出相应流量图、时空图和抢道频率曲线图,分析各车道不同进车概率pin、R车道上桥和直行车辆混合比例pm对道路交通流的影响.研究结果表明:高架桥入口处抢道行为对上游路段交通流影响显著,会导致在较小的进车概率pin和车辆混合比例pm时,发生显著拥堵,且向上游迅速传递,相应的饱和流量也随之降低,R、M和L车道饱和流量分别下降了25.0%、67.5%和47.6%,并得出抢道行为对M车道流量影响最为明显,其次为L车道和R车道.
[Abstract]:Based on the analysis of the behavior characteristics of the riders at the entrance of the viaduct, the traffic flow model of the three-lane LPM-RM cellular automata (Cellular automata) is proposed, and the corresponding flow chart is given. The space-time map and the curve of track snatching frequency, This paper analyzes the influence of mixed ratio pm on the traffic flow caused by the mixed ratio of the upper bridge and the direct vehicle in different lanes. The results show that the traffic flow in the upstream section is significantly affected by the grabbing behavior at the entrance of the viaduct. It can result in significant congestion at a lower probability of entry pin and a mixed vehicle ratio of pm, which can be transmitted quickly upstream, The corresponding saturated flow also decreased by 25.0% and 47.6%, respectively. It was concluded that the road robbing behavior had the most obvious effect on the traffic flow in the M lane, followed by the L lane and the R lane.
【作者单位】：西安交通大学管理学院;机械制造系统工程国家重点实验室;西安工业大学经济管理学院;
【基金】：国家自然科学基金资助项目(71071123;61221063) 长江学者和创新团队发展计划资助项目(IRT1173) 国家社会科学基金资助项目(13BGL156) 教育部人文社科基金资助项目(12YJAZH121)
【分类号】：U491.112

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