It's a cone shaped lens for LED traffic lights. The device was invented by ... they quickly become caked with snow and ice and drivers can't see the signals and can't tell if they should stop ...

LED lights don't melt snow on traffic lights, hiding signals from drivers. Jan. 8, 2010— -- A huge swath of the country is getting snow and it's raised an unusual and potentially dangerous ...

Energy-efficient traffic lights caked with ice and snow created bewildering conditions for drivers across the suburbs this week and contributed to at least four crashes, authorities said.

Lincoln’s been using LED traffic lights for more than 15 years ... signal electrician came up with some kind of cone contraption that keeps snow from building up on the signal lights, patented ...

though, drivers should treat obscured lights the same way they would a broken traffic signal: Proceed with caution. The Problem With LED Traffic Lights: They Can’t Melt Snow (AOL Autos) ...

MILWAUKEE -- 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 ...

as windblown snow collected in traffic- light fixtures and obscured the signal. The problem was observed along parts of Route 110 and New York Avenue, north-south arteries that traverse the Town ...