To solve the problem that the existing algebraic methods of green wave coordinated control were not suitable for the arterial road intersections in mixed entrance signal phase modes or under asymmetric bidirectional traffic conditions,a new algebraic method of bidirectional green wave coordinated control under asymmetric traffic conditions was presented by making use of velocity transformation and phase combination method.The ideal intersection spacing was calculated by time-space diagram in this method,and the common signal cycle,the signal phase combination and the signal offsets were wholly optimized through seeking the ideal intersection positions matching with the actual ones.The results show that the method not only gets rid of the restrictions of signal phase mode in arterial road intersections,bidirectional traffic velocity and bidirectional intersection spacing,but also adapts to the asymmetric traffic conditions in different directions of arterial road preferably.It can select the ideal intersection spacing in a larger range and can easily obtain better coordinated control effect of bidirectional green wave than others,which has good universality and extensive scope of application.
traffic engineeringbidirectional green wavealgebraic methodasymmetricsignal phasecoordinated control
NETL
NSTL
万方数据
维普
