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中文摘要：
采用元胞自动机模型研究高速公路入匝控制问题.利用主路上测定区域内的车辆数设计了一种新型入匝信号控制方法,模拟分析了各种参数对主路和匝道交通的影响.结果表明,设置匝道信号灯可以保证主路交通畅通,尤其是匝道处的车辆到达率比较高时效果非常明显.测定区域位置、抑制入匝车流量以及并道区长度的不同组合可以导致不同的主路和匝道交通流,合理搭配这三个参数可以兼顾主路和匝道的流量和通行时间.测定区域应该设置在并道段前或并道段上游的适当位置.
英文摘要：
In this paper,a cellular automaton model for studying the on-ramp traffic control problem of highway is proposed.The number of vehicles contained in a highway segment adjacent to the ramp merging region is used to control the on-ramp signal light.Simulation results show that the on-ramp control can improve the highway traffic,particularly when the ramp traffic is heavy.It is found that the location of detected highway segment,the length of ramp merging region and the control parameter governing the light change affect the highway and ramp traffic simultaneously.These three parameters should be coordinately designed for the improvement of both highway and ramp traffic.In general,the detected highway segment should be located at the upstream of the ramp merging region and cover it in the proper direction.
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