摘要
为了解决高峰时段高速公路主线和匝道合流区交通拥挤严重,引发车辆无法顺畅通行等问题。从高速公路交通流运行时-空特性角度出发,采用宏观交通流改进模型对可变限速条件下交通流运行情况进行描述,并以改进后的模型为基础,构建以通行效率最大和平均延误最小为控制目标的高速公路主线与匝道协调最优控制模型。仿真验证结果表明:本文所提出的主线与匝道协调控制方法能够有效改善主线与匝道交通流运行秩序,提升道路整体服务水平。
To solve the traffic congestion in the merging area of mainline and on-ramp during peak periods, a novel coordination control method was present in this paper. Based on the analysis of the time space of freeway traffic flow operating, an improved macroscopic traffic flow model was adopted to describe the traffic characters under variable speed limits control. Then an optimal control model with the goal of maximum traffic efficiency and minimum delay, considering mainline traffic flow control and on-ramp metering, was established. The simulation results show that the coordination control method presented in this paper can improve the traffic order and the promote of the level of service.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2015年第12期1603-1608,共6页
Journal of Harbin Engineering University
基金
国家自然科学基金资助项目(51308248)
山东省省管企业科技创新基金资助项目(20122150251-5)
关键词
高速公路
协调控制
智能交通控制
可变限速控制
宏观交通流模型
优化控制模型
freeway
coordination control
intelligent traffic control
variable speed limits control
macroscopic traffic flow model
optimal control model
