Why Are Turn Signal Lights Yellow Instead of Green or Red?

Turn signals are installed on cars, motorcycles, and other vehicles to indicate a change in direction. But have you ever wondered why they are yellow (or amber) and not green or red?

 

 

The choice of yellow or amber for turn signals is not random—it’s the result of careful research. Do you know why?

Answer:
Yellow (or amber) is commonly used for turn signals on cars and motorcycles because it’s easier for people to see, which helps reduce the risk of accidents. Amber light is recognized as being more quickly noticeable than red light.

In addition, amber is also less glaring than red, making it easier on the eyes when viewed directly.