traffic indication lamp

例句：

1. 1. The trafficindication lamps are located at the intersectionof the road.
   交通指示灯位于道路交叉口。
2. 2. The traffic indication lamps areused to indicate the direction of traffic flow.
   交通指示灯用于指示交通流的方向。
3. 3.The traffic indication lamps are designed toimprove safety and reduce accidents on the road.
   交通指示灯的设计旨在提高道路安全性并减少事故。