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[1] Chen Yongheng, Wu Changjian, Wang Xin, Li Wanning, et al. Control method for intersections downstreamof urban expressway off-ramp using pre-signals [J]. Journal of Southeast University (English Edition), 2023, 39 (1): 8-16. [doi:10.3969/j.issn.1003-7985.2023.01.002]
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Control method for intersections downstreamof urban expressway off-ramp using pre-signals()
基于预信号的城市快速路出口匝道衔接交叉口控制方法
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
39
Issue:
2023 1
Page:
8-16
Research Field:
Traffic and Transportation Engineering
Publishing date:
2023-03-20

Info

Title:
Control method for intersections downstreamof urban expressway off-ramp using pre-signals
基于预信号的城市快速路出口匝道衔接交叉口控制方法
Author(s):
Chen Yongheng1 Wu Changjian2 Wang Xin3 Li Wanning4 Li Haonan1
1College of Traffic and Transportation, Jilin University, Changchun 130022, China
2School of Transportation, Southeast University, Nanjing 211189, China
3College of Air Traffic Management, Civil Aviation University of China, Tianjin 300300, China
4Changchun Urban Planning and Research Center, Changchun 130028, China
陈永恒1 吴场建2 王鑫3 李婉宁4 李浩楠1
1吉林大学交通学院, 长春130022; 2东南大学交通学院, 南京211189; 3中国民航大学空中交通管理学院, 天津300300; 4长春市规划编制研究中心, 长春130028
Keywords:
traffic engineering off-ramp pre-signal connected intersection traffic shockwave theory
交通工程 出口匝道 预信号 排序区 交通波理论
PACS:
U491.3
DOI:
10.3969/j.issn.1003-7985.2023.01.002
Abstract:
To improve the traffic efficiency of the urban expressway off-ramp and connected downstream intersection, a pre-signal control method for intersections downstream of the urban expressway off-ramp was proposed. Based on the analysis of the flow distribution characteristics of an off-ramp ground point section, a vehicle lane change delay model in an off-ramp junction area is constructed. Using the traffic shockwave theory, a pre-signal upstream queue length model and sorting area length model are established. Considering the constraints of the main signal timings and queue length constraints, pre-signal timing parameters and pre-signal setting position are optimized. The results of a case study show that the pre-signal method can significantly improve the capacity of the intersection with an off-ramp and significantly reduce the average vehicle delay. The effects of the left-turn traffic proportion, traffic volume, and ramp junction length on the model are studied through numerical analysis. The results demonstrate the effectiveness and advantage of the pre-signal method.
为了提高城市快速路出口匝道与下游衔接交叉口的通行效率, 提出了一种基于预信号的出口匝道衔接交叉口控制方法.分析流量流向分布特征, 构建衔接区域换道延误计算模型;利用交通波理论, 建立预信号上游排队长度和排序区长度模型;考虑主信号配时参数约束和排队长度约束优化, 得到预信号配时参数以及预信号设置位置.案例分析结果表明, 预信号方法可以显著提高衔接交叉口的通行能力, 降低车均延误.通过数值仿真研究了左转交通比例、交通流及匝道衔接段长度对模型的影响, 证实了所提模型的有效性和优越性.

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Memo

Memo:
Biography: Chen Yongheng(1978—), male, doctor, professor, cyh@jlu.edu.cn.
Foundation items: National Key R&D Program of China(No. 2019YFB1600501), Scientific and Technological Developing Project of Jilin Province(No. 20190201107JC).
Citation: Chen Yongheng, Wu Changjian, Wang Xin, et al.Control method for intersections downstream of urban expressway off-ramp using pre-signals[J].Journal of Southeast University(English Edition), 2023, 39(1):8-16.DOI:10.3969/j.issn.1003-7985.2023.01.002.
Last Update: 2023-03-20