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.

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Urban planners in Vienna, Austria, installed their first smart ...

You’re running late to work in the morning and then you hit every single red light on the way. You’re cooked. It's not bad luck. There actually is someone to blame. A team of engineers, casually ...