England has begun installing SolarLite Smart studs along some of their darker roads. These smart studs are reflector bumps on the road that have a tiny LED light in them that is powered by a tiny solar panel. At night the light comes on allowing drivers to see curves in the road better at night time. I think this is a terrific idea and they should begin installing these things here in the U.S.These lights could replace some street lamps too which would lower electricity usage.
http://green.yahoo.com/blog/ecogeek/184/solar-led-road-studs-reduce-accidents-by-70.html
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