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Front Brake Lights Could Drastically Diminish Road Accident Rates
(bioengineer.org)
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this post was submitted on 05 Jun 2025
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Tail lights being red is fine if you live with the most common forms of colorblindness which fall into what we call “red-green colorblind.” It is still a different color than headlights.
Now put those same red-green lights on the front, and we have a problem.
They could use traffic light green. There's not any problems identifying those even in places with the lights mounted horizontally. There's enough difference in saturation you can tell the difference even with colorblindness.
But why? Again, the perception would be absence or presence of light on a standardized indicator.
FYI signal lights are much more strictly regulated in Europe, such as position, colour, shape and strength.
This study is from Austria.