@mstone 37217 wrote:
Nobody’s questioning whether cars have lights, the question was whether colors matter. I think they do, but only during the day.
I read that post wrong then.
You’re right, paint colors absolutely do matter during the day. That’s why there was a brief shift to fluorescent greens and yellows for fire trucks. Those colors were shown in research to have the highest visibility. Eventually departments decided that it was more important to be able to recognize a vehicle’s purpose quickly and resumed painting most fire trucks red. The puke-colored trucks were replaced and you see that less and less these days.
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