Journal of South China University of Technology(Natural Science) >
Coordinated Optimization Model of Arterial Segmented Green Waves Considering the Efficiency of Tram Operation
Received date: 2022-03-07
Online published: 2022-08-12
Supported by
the National Key Research and Development Plan(2019YFB1600200);the Jiangsu Province Key Research and Development Plan ? Industry Foresight and Core Technology Project(BE2020110)
In order to improve the traffic efficiency and reduce the stops of tram in intersections, this paper proposes a coordinated signal control optimized method to realize the multimodal segmented green wave control of tram and general traffic. First of all, the signal cycle of each intersection along the arterial is determined. Based on the cycle length, the intersections are clustered and coordinated with the tram departure interval, and the influence of the station location on the tram green wave coordination is discussed. Secondly, constraints are established for general traffic green wave system and tram green wave system to avoid the tram stopping at the intersection. A mixed integer linear planning model is established based on the goal of optimizing the maximum variable green wave bandwidth of general traffic, so as to coordinate and optimize the multi-mode trunk green wave system of trams and general traffic. Finally, a comparative analysis is carried out by using the Nanjing Qilin tram line as a case study. The results indicate that this model can optimize the signal control scheme of arterial segmented green wave which guarantees the passive priority of tram in intersections and running efficiency of general traffic. VISSIM simulation results indicate that, as compared the current signal control scheme, the proposed model can reduce the vehicle delay of each intersection by 20.89%~35.24%; and that, as compared with the MULTIBAND model, this model reduced the delay of person by 6.94%, which improves the overall operation efficiency of the intersection.
Key words: urban traffic; signal coordination; segmented green wave; tram; departure interval
WANG Hao, XIE Ning . Coordinated Optimization Model of Arterial Segmented Green Waves Considering the Efficiency of Tram Operation[J]. Journal of South China University of Technology(Natural Science), 2023 , 51(1) : 95 -105 . DOI: 10.12141/j.issn.1000-565X.220111
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