The first traffic light was installed more than 100 years ago, in 1914 The three-light traffic light came less than ten years later. Cities and towns slowly began to put in traffic lights as cars became more common. Today, we cannot imagine what our roads would look like without them. The traditional three-light traffic signal has a red light for stop, a yellow light for caution/transition, and a green light for go. When you stop at a light, you may wonder whether you are allowed to turn right when it is red. Different states have different laws.
Right Turn on Red in North Carolina