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This Is Why Traffic Lights Are Red, Yellow, and Green

Have you ever wondered why blue doesn't mean go and orange mean stop? It turns out that there is a perfectly reasonable explanation for the colors chosen for traffic lights.

The idea that red means stop and green means go not only impacts us in the realm of traffic signals but literally every aspect of our life. We've been taught at a young age that the color red represents danger and the color green means you are free to go. But why do these specific colors chosen for traffic lights in the first place? We run into traffic lights nearly every day, why couldn't they have been in other colors? Here are the explanations for this little thing you've always wondered about.

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