Tag: Use of traffic lights

You must have seen traffic signals in every city. All traffic signals have three colors. Which are red, green and yellow. But have you ever wondered why vehicles always stop at the red signal. Let us tell you that there is a main reason behind using red, yellow and green lights in traffic signals. According to a report by Live Science, the colors used in traffic signals initially were based on the navigation system of ships. Ships had red and green signals. By looking at these, the crew of the…

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