摘要
为弥补信号控制中网络多路径绿波协调控制相关方法的不足,提出一种网络多路径绿波协调控制方法,为网络中多条具有不同起讫点的路径创建相互独立的绿波。建立了考虑可变相位结构与绿波断点的网络混合整数非线性规划模型;构建了可以实现任意自定义相位结构的绿波约束条件;实现了信号方案周期在正常周期、双周期与不均匀双周期之间的切换;根据具有相同相位长度的双周期与不均匀双周期方案,定义了用于区分各方案的不同绿波通过情况。应用所提出的网络绿波协调控制方法对山东省日照市的路网进行了交通信号协调优化仿真试验。仿真试验中,以平均旅行时间、平均停车次数以及性能参数为指标,对比了所提出的模型、现状方案、Yang模型以及Pband的性能差异。研究结果表明:模型为案例路网中的7条路径创建了相互独立的绿波;7条路径的绿波带宽分别达到35、35、35、35、31、31、28 s。相较于现状方案与Yang模型,所提出的模型方案在所有路径以及总体路网上均有显著提升,相较于Pband模型,该模型在4条路径上与其表现持平,并在其他3条路径和总体路网上有明显提升;单交叉口双周期方案与正常方案的对比表明,双周期方案能够有效减少交叉口各方向进口道的延误。
To compensate for the insufficiency of network multi-path green-band coordination control methods in signal control,a network green-band coordination control method is proposed,which creates independent green-bands for multiple paths with different origins and destinations in a network.A mixed-integer nonlinear programming model is established for the network,considering the variable phase structure and green-band breakpoints;the green-band constraints are constructed,which can realize any customized phase structure;the switching of the signal scheme is realized among normal,double,and uneven double cycles;the scenarios,wherein green bands travel through different phases,are defined according to double cycle and uneven double cycle plans of equal phase lengths.The proposed network green-band coordination control method was used to coordinate and optimize the traffic signal in the regional road network of Rizhao City,Shandong Province.Simulation experiments were performed to evaluate the performance of the proposed model,the status quo,Yang Model and Pband with the help of average travel time,average number of stops and performance index;the results show that the model successfully created independent green-bands for the seven paths in the above case;the green-band bandwidths of the seven paths reached 35,35,35,35,31,31,and 28 s,respectively;the proposed model is superior to the status quo and Yang Model in all paths and in the whole network,and when compared to Pband,it demonstrated comparable performance in four paths,while outperforming Pband in the remaining three paths and in the whole network;a comparison between the double cycle plan and the normal plan at an isolated intersection shows that the double cycle plan can effectively reduce the delay at all arms of the intersection.
作者
李昌泽
王昊
LI Chang-ze;WANG Hao(Jiangsu Province Collaborative Innovation Center of Modern Urban Traffic Technologies,Southeast University,Nanjing 211189,Jiangsu,China;Jiangsu Key Laboratory of Urban ITS,Southeast University,Nanjing 211189,Jiangsu,China;School of Transportation,Southeast University,Nanjing 211189,Jiangsu,China)
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
2023年第10期197-210,共14页
China Journal of Highway and Transport
基金
国家重点研发计划项目(2019YFB1600200)。
关键词
交通工程
多路径绿波协调控制
混合整数线性规划
多路径绿波
可变相位结构
traffic engineering
multi-path green-wave coordination control
mixed integer linear programming
multi-path green-wave
variable phase structure
