摘要
为缓解城市快速路的交通拥挤,对入口匝道的控制方法进行研究.以北京市阜成门桥处的快速路为例,分析道路几何布局组成、道路交通特征,并且运用微观仿真软件VISSIM建立仿真模型.在一定交通供给的情况下分别应用定时控制、Alinea控制和New-Control控制3种入口匝道控制算法,对实施效果进行了仿真分析,并说明各种控制算法的参数拟合方法.仿真结果对比分析表明,在常规的交通条件下,有必要对快速路入口匝道进行协调控制,入口匝道控制在一定的交通需求水平下能有效发挥改善主线交通的作用,其中感应控制中的Alinea控制和New-Control控制总体上均优于定时控制.
On-ramp control is one of the most effective measures to relieve traffic congestion on urban freeway.Taking Beijing Fuchengmen Bridge Expressway as an example,the geometric layout and traffic characteristics are analyzed;three on-ramp control algorithms,including fixed-time,Alinea and New-Control were separately evaluated via the microscopic transportation simulation software VISSIM on Fuchengmen Bridge Expressway at a certain traffic demand level,and the parameters calibrations were also expatiated.Simulation results show that it is necessary to ramp metering control and on-ramp metering can effectively improve mainline traffic at a certain traffic demand level.By and large,both Alinea and New-Control perform better than fixed-time metering.
作者
孙煦
林坤
SUN Xu;LIN Kun(School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044)
出处
《北京建筑大学学报》
2020年第3期37-43,共7页
Journal of Beijing University of Civil Engineering and Architecture
基金
中国博士后科学基金项目(2018M641169)
教育部人文社科基金青年项目(19YJC630148)。
