中文核心期刊
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中国科技核心期刊
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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2019, Vol. 38 ›› Issue (04): 9-14.DOI: 10.3969/j.issn.1674-0696.2019.04.02

• 交通+大数据人工智能 • 上一篇    下一篇

拥堵条件下的快速路出口匝道交叉口与下游交叉口协同控制方法研究

徐建闽1, 2, 邹祥莉1, 马莹莹1   

  1. (1. 华南理工大学 土木与交通学院，广东 广州 510640； 2. 现代城市交通技术江苏高校协同创新中心，江苏 南京 210096)
  • 收稿日期:2017-11-03 修回日期:2017-12-26 出版日期:2019-04-15 发布日期:2019-04-15
  • 作者简介:徐建闽(1960—)，男，山东招远人，教授，博士，博士生导师，主要从事交通信息工程和控制理论方面的研究。E-mail： aujmxu@scut.edu.cn。 通信作者：马莹莹(1983—)，女，吉林吉林人，副教授，博士，主要从事交通信息工程方面的研究。E-mail：mayingying@scut.edu.cn。
  • 基金资助:
    广东省交通运输厅科技计划项目(科技-2017-02-024)

Cooperative Control Method of Freeway Off-Ramp Intersection and Downstream Intersection under Congestion Conditions

XU Jianmin1, 2, ZOU Xiangli1, MA Yingying1   

  1. (1. School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, Guangdong, P. R. China; 2. Jiangsu Province Collaborative Innovation Center of Modern Urban Traffic Technologies, Nanjing 210096, Jiangsu, P. R. China)
  • Received:2017-11-03 Revised:2017-12-26 Online:2019-04-15 Published:2019-04-15

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摘要： 在快速路系统中，出入口匝道是联接快速路与地面道路的纽带，同时也是最易发生拥堵的瓶颈路段。针对快速路出口匝道车辆拥堵问 题，建立拥堵条件下的快速路出口匝道交叉口与下游交叉口协同控制模型，由两个子模型组成，分别是目标交叉口通行能力最大优化模型和 下游交叉口车辆疏散最大优化模型。前者旨在提高出口匝道的通行能力，后者旨在保障目标交叉口方向来车到达下游交叉口后尽快疏散，案 例分析结果表明：在快速路出口匝道拥堵疏解路径中，该模型求得的交叉口信号配时方案比采用Webster配时模型求得的单点信号配时方案 在通过车辆数、车均延误以及平均排队长度方面分别优化了18%、22.3%和71.6%，大大加快了出口匝道拥堵疏解效率。

关键词: 交通工程, 城市交通, 快速路出口匝道, 拥堵疏解, 协同控制

Abstract: In freeway system, the on-ramp and off-ramp is the link connecting the freeway and ground road, and its also the bottleneck segment which is most prone to traffic congestion. Targeting to evacuate traffic congestion of off-ramp in freeway, a collaborative control model combining off-ramp intersection and downstream intersection under congestion conditions was proposed. The proposed model was divided into two parts: the first was the maximum capacity optimization model in targeted intersection and the second was the maximum vehicle evacuation optimization model in downstream intersection. The first model aimed at improving the capacity of the off-ramp, and the second model aimed to guarantee vehicles from the targeted intersections can drive away as soon as possible after reaching downstream intersections.The results of case studies show that: in aspect of route to evacuate traffic congestion on off-ramp of freeway, the intersection signal timing scheme obtained by the proposed model is 18%, 22.3% and 71.6% better than the single-point signal timing scheme obtained by Webster model in terms of the number of vehicles passing, average delay and average queue length respectively, which significantly improves efficiency of congestion evacuation in off-ramp.

Key words: traffic engineering, urban traffic, freeway off-ramp, congestion evacuation, collaborative control

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