Many cities are replacing their incandescent traffic lights with LEDs, despite the higher initial cost. Here's why that's actually a good idea.

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Urban planners in Vienna, Austria, installed their first smart ...

Before the advent of computers, traffic lights were a marvel of mechanical and electromechanical engineering, utilizing timers, relays, and human intervention to manage bustling city intersections.

SUN PRAIRIE, Wis. (WKOW) -- The days of waiting at long lights may be over at three intersections in Sun Prairie thanks to new AI technology. The City of Sun Prairie has put in several traffic cameras ...

Add Yahoo as a preferred source to see more of our stories on Google. Traffic light with red light and green arrow for free right turn - Blue Traffic Light/Shutterstock LED signal lights generally ...