[johnny7]

The natural question here is : are they going to ban traffic signals?

Absolutely... replace them both with one 'purple light'. Purple is much less 'threatening'... and doesn't infringe on ones self-esteem. The driver would see the purple-light and give more thought before deciding whether to stop... or simply drive through.

[Grams A]

And women were at one time to wear purple as it is a “power” color!