traffic lights - Definition & Meaning

a set of lights, often colored in red, yellow, and green, that control the traffic on a roada set of lights, often colored in red, yellow, and green, that control the traffic on a road

Traffic lights are signaling devices used to control the flow of traffic at intersections. They typically have three colors: red, yellow, and green. Red means stop, yellow signals caution or prepare to stop, and green indicates go. These lights help prevent accidents by ensuring that vehicles and pedestrians move safely and in an organized manner. Traffic lights are often placed at busy intersections or areas where controlled movement is needed to manage traffic and pedestrian flow.Traffic lights are signaling devices used to control the flow of traffic at intersections. They typically have three colors: red, yellow, and green. Red means stop, yellow signals caution or prepare to stop, and green indicates go. These lights help prevent accidents by ensuring that vehicles and pedestrians move safely and in an organized manner. Traffic lights are often placed at busy intersections or areas where controlled movement is needed to manage traffic and pedestrian flow.

例句

The traffic lights turned red, so all the cars came to a stop.
交通灯变红了，所以所有的车都停了下来。
Pedestrians waited for the green signal from the traffic lights to cross the street safely.
行人等待交通灯的绿色信号以安全过马路。
Traffic lights at the intersection were malfunctioning, causing confusion for drivers.
十字路口的交通灯出了故障，给司机们造成了混乱。