摘要
针对高峰时期高速公路出入口及周边区域交通需求过大和交通负荷分布不均而引起的区域交通拥堵问题,研究了高速公路出入口与邻接城市道路协同控制方法。首先通过研究高速公路出入口区域内各节点之间进出的交通需求和通行能力关系,以收费站及其衔接交叉口通行量最大为控制目标,构建高速公路出入口交通协同控制模型。其次,研究了城市道路区域边界节点与高速公路出入口之间进出的交通需求和通行能力关系,结合红波协调控制思想,构建城市路段交通信号协调控制模型。最后以南宁市石埠高速公路出入口及周边区域为例,通过开展VISSIM仿真试验验证方法的有效性和可行性。仿真结果表明:虽然协调区域上的边界节点交通负荷有所增加,但高速公路出入口衔接节点平均排队长度和平均延误分别降低了22.36%和13.10%,其他节点总的平均排队长度降低了18.54%,从区域路网的角度考虑,仿真结果表明了本文方法能有效缓解高速公路出入口及周边的区域性交通拥堵问题。
Aiming to solve the problem of regional traffic congestion caused by excessive traffic demand and uneven distribution of traffic load during peak time,the collaborative control method of freeway entrance and exit and adjacent urban roads is studied.Firstly,after studying the relationship between the traffic demand and the traffic capacity from node to node in the area of freeway entrance and exit,a collaborative traffic control model of freeway entrance and exit is constructed,taking the maximum traffic volume of toll station and its connecting intersection as the control target.Secondly,after studying the relationship between the traffic demand and the traffic capacity from each boundary node of the urban road region to the freeway entrance and exit,a traffic signal coordination control model of urban section is constructed,combined with the idea of red wave coordination control.Finally,taking Shibu Freeway in Nanning City and its surrounding areas as examples,the validity and feasibility of the method were verified by carrying out VISSIM simulation experiments.The simulation results show that although the traffic load of the boundary nodes on the coordination area has increased,the average queue length and the average delay at the freeway entrance and exit cohesion nodes are reduced by 22.36%and 13.10%respectively,and the total average queue length at other nodes is reduced by 18.54%.From the perspective of regional road network,the simulation results show that the proposed method can effectively alleviate the regional traffic congestion of freeway entrance and exit and the surrounding areas.
作者
李文勇
秦宇哲
廉冠
王元顺
LI Wenyong;QIN Yuzhe;LIAN Guan;WANG Yuanshun(Guangxi Key Laboratory of Intelligent Transportation,Guilin University of Electronic Technology,Guilin 541004,China)
出处
《青岛理工大学学报》
CAS
2024年第3期132-141,共10页
Journal of Qingdao University of Technology
基金
国家自然科学基金资助项目(61963011)
广西科技重大专项项目(桂科AA19254016)。
关键词
城市交通
协同控制
通行能力
区域交通拥堵
VISSIM仿真
urban transportation
collaborative control
traffic capacity
regional traffic congestion
VISSIM simulation
