|Table of Contents|

[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, (1): 8-16. [doi:10.3969/j.issn.1003-7985.2023.01.002]

Control method for intersections downstreamof urban expressway off-ramp using pre-signals()

Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Research Field:
Traffic and Transportation Engineering
Publishing date:


Control method for intersections downstreamof urban expressway off-ramp using pre-signals
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
traffic engineering off-ramp pre-signal connected intersection traffic shockwave theory
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.


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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