traffic arrow

例句：

1. 1.The traffic arrow is pointing towards the left turn lane.
   交通指示箭头指向左转车道。
2. 2. The driver followed the traffic arrow and made a right turn.
   司机按照交通指示箭头的指示，做了一个右转。
3. 3. The traffic arrow was designed to help drivers avoid accidents.
   交通指示箭头的设计是为了帮助司机避免事故。