| 城市快速路出口匝道与衔接交叉口整合控制模型 |
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| 引用本文： | 杨晓芳,韩印,付强.城市快速路出口匝道与衔接交叉口整合控制模型[J].交通运输工程学报,2009,9(2). |
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| 作者姓名： | 杨晓芳 韩印 付强 |
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| 作者单位： | 杨晓芳,韩印,YANG Xiao-fang,HAN Yin(上海理工大学,城市建设与环境工程学院,上海,200093);付强,FU Qiang(上海浦东工程建设管理有限公司,上海,201203)
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| 基金项目： | 上海市科学技术委员会专项基金重点项目，上海市教育委员会资助项目，上海市重点学科建设项目 |
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| 摘 要： | 在出口匝道接地点离交叉口距离过近时,为避免衔接交叉口的拥堵易回溢至快速路主线,提出一种基于CTM的出口匝道与衔接交叉口的整合控制模型.在出口匝道存在超长排队时,实行相位绿灯延长或绿灯提前激活策略;在出口匝道不存在超长排队时,以出口匝道及衔接信号控制交叉口车均延误最小化为目标,实时动态优化衔接交叉口的周期和绿信比.仿真结果表明:采用控制模型,衔接交叉口的车均延误虽然增加了1.74 s,但可以将排队长度从大于200 m降低至160 m以内,从而可以保证出口匝道衔接区域和快速路主线的畅通,因此,控制策略及模型合理有效.
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| 关 键 词： | 交通控制 城市快速路 出口匝道 整合控制模型 |
Integrated control model of urban expressway off-ramp and correlative intersection |
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| YANG Xiao-fang,HAN Yin,FU Qiang.Integrated control model of urban expressway off-ramp and correlative intersection[J].Journal of Traffic and Transportation Engineering,2009,9(2). |
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| Authors: | YANG Xiao-fang HAN Yin FU Qiang |
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| Institution: | 1.School of Urban Construction and Environmental Engineering;University of Shanghai for Science and Technology;Shanghai 200093;China;2.Shanghai Pudong Project Development Co.;Ltd.;Shanghai 201203;China |
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| Abstract: | In order to keep the queues of intersection and off-ramp from backupping to expressway mainline, an integrated control model of off-ramp and correlative intersection was proposed based on cell transmission model(CTM). When overfull queue appeared at off-ramp, red truncation strategy or green extension strategy was adopted. When overfull queue did not appear at off-ramp, the cycle and green signal ratio of intersection were optimized dynamically to minimize the average vehicle delays of off-ramp and correlat... |
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| Keywords: | traffic control urban expressway off-ramp integrated control model |
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