Traffic signals are lights that tell you when and where to stop or go. They are usually at intersections. The lights are red (top), yellow (middle) and green (bottom). A lot of intersections in the country have a  single yellow or red light. If a traffic light loses power or is not working right, proceed as if the signal were a stop sign. If you see a police officer directing traffic, make sure to follow their directions.  Below are examples of the different traffic lights you will see:
