吉林大学学报(工学版) ›› 2022, Vol. 52 ›› Issue (6): 1315-1323.doi: 10.13229/j.cnki.jdxbgxb20210028
• 交通运输工程·土木工程 • 上一篇
Wen-jing WU1(),Yong-bin ZHAN1,Li-li YANG1(),Run-chao CHEN2
摘要:
针对匝道合流冲突的问题,分析了合流区车辆换道特性及运动轨迹,提出了满足车辆合流需求的车辆安全间距计算模型。首先,将其纳入可变限速的控制框架中,运用模型预测控制方法,建立了网联环境下合流区可变限速协调控制方法和模型。然后,利用元胞自动机搭建仿真环境,实现了网联车在上游控制区的速度协调控制。最后,将匝道与主道车辆到达率按照低、中、高进行27个场景的设置,选取交通量、速度、密度、行程时间作为评价指标,通过仿真分析了控制策略下的合流区交通状况。仿真结果表明:匝道车辆到达率会影响控制策略的实施效果,低密度时,效果不显著;中密度时,控制策略优势得以体现;高密度时,策略失效。
中图分类号:
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