Comments by "kd1s" (@kd1s) on "The LED Traffic Light and the Danger of "But Sometimes!"" video.

Well there are electronics that can detect temperature and humidity. So it's not hard to imagine a heated surface that only comes on when temperatures drop below freezing and humidity goes up. So only SOMETIMES the heater would come on.
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Where I live all the traffic signals got upgraded to ITS standards. Meaning they're mostly LED, can sense cars, detect emergency vehicles and have the LED based walk/don't walk with timer signals. But go down to Warwick, RI and the traffic lights don't have sensors, use incandescent etc. And the other thing - traffic light cameras. We pretty much accepted that. But then the city started deploying portable speed cameras. That pissed us off. In fact one camera was stolen, one was vandalized and the politicians got an earful. And the right turn - unless posted otherwise you can always make a right on red after stop. And the traffic detectors you also see them on highways - two loops - speed checks. That's how they set 85th percentile. And drivers rememeber rules - as if!
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