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车路协同环境下多车道车辆的协同换道规则

, PP. 97-104

Keywords: 交通工程,协同换道规则,数值模拟,元胞自动机模型,车路协同系统

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Abstract:

?为了提高道路利用率,针对未来车路协同环境所提供的车辆交互基础信息,提出了一种考虑局部区域车辆状态优化的协同换道模型。分析了现有多车道换道规则在车路协同实现条件下的局限与扩展可能;利用威胁度函数描述多车道车辆间相互关系,并在此条件下建立了基于元胞自动机的协同换道规则模型STCA-S。研究结果表明:提出的规则对比STCA,STCA-I等换道模型,在多车道环境中提高了车辆的换道率;在同等车辆密度下,提出的规则减少了阻塞相的产生,同时车流量、平均速度等交通流参数值均得到改善。

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