Why Do We Use Red, Green, and Yellow Colors In Traffic Lights?

Have you ever had a sudden stroke of curiosity while you were out and about? Is there a God out there? What is the true meaning of consciousness? Why are the traffic lights red, green, and yellow? While we can’t give you answers to the first two, the “lights” one has quite a fascinating history.

1. Early Traffic Signals

Before the adoption of electric traffic signals, there was a lack of standardized traffic control systems. Various methods were used in different places to manage traffic at intersections. For example, some places used police officers stationed at intersections to manually direct traffic. As you can imagine, this was often inefficient and prone to human error.

The post Why Do We Use Red, Green, and Yellow Colors In Traffic Lights? appeared first on Brain Berries.


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