Traffic lights for the color blind

From Autoblog Uni-signal Traffic light with shapes for the color blind.
traffic-lights-thumb-400x367-45812
The principle seems right, the symbols seem wrong. Red should be an octagon, to align with the stop sign. If we use LEDs we could actually spell out the word “stop” (though this might have trouble in winter). An idea worth playing with.

4 thoughts on “Traffic lights for the color blind”

  1. Yes, the symbol is very wrong.
    The triangle looks more like and arrow, implying I can go forward now.

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