LED traffic lights good for wallets, bad in snowstorm
Posted: December 21, 2009 at 4:23 a.m.
Cities around the country that have installed energy-efficient traffic lights are discovering a hazardous downside: The bulbs don’t burn hot enough to melt snow and can become crusted over in a storm — a problem blamed for dozens of accidents and at least one death.
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Business, Pages 25 on 12/21/2009
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