基于左转相位的绿波控制优化仿真研究

his paper proposes a green wave band optimization control scheme based on left-turn phase, because the traditional green wave band is easily influenced by the front stopped vehicles, which are waiting for the traffic lights. This new method is based on the traditional green wave band control scheme, and narrows the traffic lights' phase difference. Thus the vehicles, which come from secondary trunk road left-turn phase, will wait for less time to go straight and pass the next intersection. When the vehicles, which come from the trunk road straight phase, arrive at the crossroads, the front vehicles almost have left the intersection. Thus, two streams become one. Therefore, not only the waiting time for the vehicles coming from secondary trunk road left-turn phase parking will be reduced, but also delay time for the vehicles coming from the trunk road straight phase will be decreased. Take the road section of Wanshun road to Lixin road in Wuxi Gaolang road as an example, through the VISSIM software simulation, it confirms that the scheme can effectively reduce the vehicle delay time and the number of parking. When the best phase differences are chosen, the delay time of all detection sections, respectively reduce by 5.8%, 22.4%, 5.8% , the number of stops decrease by 3.1%, 14.7% and 3.1% respectively, which will be of important significance to improve the traffic efficiency and reduce the energy consumption of vehicles.