Sunday, November 21, 2010

New Traffic Light Concept – Flawed

340x_sandglass_signal340x_sandglass_signal2

Link

Does look interesting. However, I would like to add that I have seen standard traffic lights with attached timers which serve the purpose just fine.

Looking at the concept and thinking about it, there are a few problems. Using the orange twice is going to be a bit confusing, but what’s really wrong with the concept is – they didn’t think about people who are colour blind!

Now before someone comes with wise ass remarks, please read - the present traffic light design works fine for the colour blind because of the positioning of the lights. Top is Stop, Bottom is Go, Middle is Prepare to Stop.

And just for the record, there are different types of colour blindness. The major ones are:

  • Red-Green - those who have difficulty distinguishing between red and green.
  • Blue-Yellow - those who have difficulty distinguishing between blue and yellow.

Wiki Link on Colour Blindness

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