基于五维同步优化的城市干道双向绿波协调控制研究

Arterial Road Bi-directional Green Wave Coordinated Control Based on Simultaneous Optimization of Five Parameters

城市干道双向绿波协调控制是提高城市主干道通行能力,降低停车延误的重要方法,本文以MATLAB图解法为基础,提出一种基于五种要素同步优化的城市干道双向绿波协调控制方法。采用基于周期、绿信比、相位、相位差、相序五维同步图解优化法,在优先保证主要交叉口单向绿波的前提下,反向协调各交叉口之间的相位差,合理运用相位延迟、早闭或单放相位等技术对城市干道双向绿波协调控制系统进行优化设计。

The bi-directional green wave is an important means for traffic management and control. This paper presents a new bi-directional green wave optimization method to solve the coordination control problem in the urban arterial traffic. An optimization method based on MATLAB graphical computation is proposed to solve the synchronous optimization for five parameters including the phase, the phase sequence, the offset, the cycle time and the split. Inbound coordination in the heavy traffic flow direction is achieved first, and the offset between each intersection in the outbound direction is adjusted by using phases with asymmetric signal mode, lag-open or advanced-close and etc. Then the coordinated control scheme for multi-plan is designed flexibly according to the characteristics of different intersections.