两种交叉口信号相位设计方法的比较

Comparison between Methods for Two Intersection Signal Phases

针对交叉口交通需求和供给条件的不对称性 ,在简要回顾对称流向放行相位设计方法及相关理论发展的基础上 ,介绍了各进口单独放行的相位设计方法 ,通过模型和算例 ,对两种设计方法进行特性比较 ,得出了各进口单独放行方法设置直行左转合用车道 ,可以最大限度地平衡各流向车道的利用率、车流饱和度和延误。但交叉口的总通行能力较小 ,饱和度和延误相对较大。

The design and arrangement of signal phase has great effect on the intersection operation during the traffic control of urban intersection. Considering the diss ymmetry of the supply and command in urban intersection and based on a method fo r symmetry phase design, this paper presents a method for signal phase design: e ach phase for an entrance. This paper makes conclusion and suggestions by compar ing a method for signal phase design with that for symmetry phase design through some simple models and examples.