| 引用本文: | 马明辉,杨庆芳,梁士栋.高速公路主线可变限速控制方法[J].哈尔滨工业大学学报,2015,47(9):107.DOI:10.11918/j.issn.0367-6234.2015.09.020 |
| MA Minghui,YANG Qingfang,LIANG Shidong.A method of variable speed limit control for traffic flow on freeway mainline[J].Journal of Harbin Institute of Technology,2015,47(9):107.DOI:10.11918/j.issn.0367-6234.2015.09.020 |
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| 摘要: |
| 为了解决高流量状态下高速公路主线瓶颈区域交通流运行态势恶劣,导致车辆行程时间增加、道路通行效率降低等问题,从高速公路交通流运行时-空特性角度出发,对宏观交通模型METANET改进,使其能够描述可变限速控制条件下道路交通流运行状态,并以改进模型为基础,提高通行效率和缩短行程时间为目标,构建高速公路主线交通优化控制模型. 实验结果表明: 高速公路主线可变限速控制方法能够根据道路交通流量的变化对安全限速值动态设置,实现对危险区车辆到达率的动态控制. 实施高速公路主线可变限速控制方法可有效提高道路通行效率,缩短车辆行程时间. |
| 关键词: 高速公路 优化控制模型 宏观交通流模型 METANET 可变限速控制 |
| DOI：10.11918/j.issn.0367-6234.2015.09.020 |
| 分类号:U491 |
| 基金项目:国家自然科学基金(51408257); 山东省省管企业科技创新项目(20122150251-5). |
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| A method of variable speed limit control for traffic flow on freeway mainline |
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MA Minghui1,YANG Qingfang1,2, LIANG Shidong1
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(1. College of Transportation, Jilin University, 130022 Changchun,China; 2. State Key Laboratory of Automotive Simulation and Control(Jilin University), 130022 Changchun,China)
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| Abstract: |
| The traffic state would become congested at the bottleneck region during peak period, which increase travel time, and decrease efficiency. From time-space traffic characteristics on freeway mainline, macroscopic traffic flow model METANET is modified to describe the traffic flow with VSL control. Furthermore, based on the modified traffic flow models, establish the VSL models at bottleneck region, with the objective of improving traffic efficiency and decreasing travel time. As part of the VSL control algorithm, the proposed VSL control model is implemented at VISSIM simulation platform, the results reveal that the given VSL values according to real time traffic flow conditions can control the vehicles arriving effectively. Therefore, the implement of VSL control can improve traffic efficiency and decrease travel time effectively. |
| Key words: freeway optimal control model macroscopic traffic flow model METANET variable speed limits |
