交通灯通常指由红、黄、绿三种颜色灯组成用来指挥交通的信号灯。绿灯亮时，准许车辆通行，黄灯亮时，已越过停止线的车辆可以继续通行；红灯亮时，禁止车辆通行。-Traffic lights usually refers to the red, yellow and green color lamp composition used to directing the traffic signal. The green light, allow traffic, yellow light, has crossed the vehicles can continue to stop line go-ahead　When the red light is a ban on vehicle traffic.