The potential power savings of expensive LED traffic lights may be worth it

Many cities are replacing their incandescent traffic lights with LEDs, despite the higher initial cost. Here's why that's ...
Hosted on MSN

The Ingenious Way Traffic Lights Worked Before Computers Were Invented

Today's traffic lights can be controlled by anything from standard traffic control computers to highly advanced AI-driven computer systems that are so "smart" they can predict what's going to happen ...
The Drive

Hacker Uncovers How to Turn Traffic Lights Green With Flipper Zero

We’ve talked about this tiny gadget before: the Flipper Zero. Officially, it’s a $170 tamagotchi-fied hacking gadget with a sub-gigahertz radio and some accessory pins. Unofficially, it’s a menace’s ...
Jalopnik

Why Do Some States Mount Traffic Lights Horizontally?

Traffic lights help traffic flow by directing specific lanes to go and others to stop. Some are more complex and include signals for buses. But at the end of the day, they're devices with red, yellow, ...