| 快速路出口辅路与地面交叉口协调控制策略研究 |
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| 引用本文： | 袁长亮,李宏海.快速路出口辅路与地面交叉口协调控制策略研究[J].道路交通与安全,2010(4):28-35. |
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| 作者姓名： | 袁长亮 李宏海 |
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| 作者单位： | 交通部公路科学研究院,北京100088 |
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| 基金项目： | 交通部公路科学研究院科研创新和人才培养项目：“城市快速路出口处辅路信号控制策略研究”（2007-9023）; “863”国家高技术科技攻关：智能化交通控制系统上端系统测试总体框架研究（2006AA11Z207） |
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| 摘 要： | 快速路出口及辅路通过的流量增大时,易造成出口下游交叉口的拥堵,同时拥堵会向上游蔓延造成快速路出口范围的拥堵。为缓解出口范围的拥堵,提出了一种新的协调控制策略。以辅路衔接路段排队为监测变量,协调计算出口下游交叉口的周期、绿信比和辅路的绿灯时长,并给出了各控制变量小步距连续调整的算法。仿真实验结果表明该协调控制策略是有效的,与固定配时策略相比,出口匝道通过固定流量持续时间至少减少了10%。
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| 关 键 词： | 协调控制 控制策略 出口匝道排队 周期长度调整 |
Coordinated Control Strategy of ExpresswayExit Auxiliary Road Signal and Urban Road Intersection Signal |
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| Yuan Changliang,Li Honghai.Coordinated Control Strategy of ExpresswayExit Auxiliary Road Signal and Urban Road Intersection Signal[J].Road Traffic & Safety,2010(4):28-35. |
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| Authors: | Yuan Changliang Li Honghai |
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| Institution: | (Research Institute of Highway Ministry Transport,Beijing 100088) |
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| Abstract: | When the expressway off-ramp flow and auxiliary road flow increases,it is easy to lead to the downstream intersection congestion which will spread to the upstream off-ramp scope rapidly.In order to relieve the traffic congestion in the scope of off-ramp of the expressway,a new coordinated control strategy is put forward.The queue of auxiliary convergence road is selected as monitoring variable in the coordinated control strategy,and downstream intersection cycle,split and auxiliary road green time are calculated.The control variables small-step adjustment algorithm is presented.The simulation results show the effectiveness of the coordinated control strategies proposed in this paper,and the throughput flow duration of off-ramp by the coordinated control strategy decreases at least 10% than by the fixed control strategy. |
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| Keywords: | coordinated control control strategy off-ramp queue cycle length adjustment |
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