摘要
为缓解城市干道交通拥堵,针对几何条件不对称、左转交通量较大、对向交通量不均衡的干道交叉口群,基于最大绿波带的设计理念,对进口单独放行条件的双向绿波数解法在理想交叉口间距取值范围的确定、不同信号相序组合下交叉口理想间距的计算、最优相序组合与最佳公共信号周期的选取、以及各交叉口绝对相位差的设置上存在的不足之处进行改进。算例分析表明,文中研究的改进数解法与改进前相比,由西向东绿波带宽提高了14.30%,由东向西绿波带宽提高了7.18%。
For the intersections group in main road of dissymmetry of geometric conditions,large traffic flow on turn left,two-way-flow imbalance,based on the design principle of maximum green wave bandwidth and on the time-space analysis of the ideal intersection green light center time line,an improved algebraic method of bidirectional green wave is established.By studying the ideal distance of two adjacent intersections on combination of different phase sequence,the optimal phase composition,common signal cycle and absolute signal offsets are determined.Numerical example shows that compared with the algebraic method improved before,the green wave bandwidth from west to east increases by 14.30%,and the green wave bandwidth from east to west increases by 7.18%.
作者
李小会
闫冬
LI Xiaohui;YAN Dong(Chongqing Municipal Research Institute of Design,Chongqing 400023,China;Shenzhen Urban Transportation Planning&Design Institute Co.,Ltd.,Shenzhen 518058,China)
出处
《交通科技与经济》
2019年第6期9-18,共10页
Technology & Economy in Areas of Communications
关键词
进口单独放行
数解法
理想间距
相序组合
绝对相位差
one-phase-one-approach
algebraic method
ideal distance
phase composition
absolute signal offset
