The Ingenious Way Traffic Lights Worked Before Computers Were Invented

Traffic lights today are controlled by computers and other purpose-built systems, but what did people do before computers ...
Hosted on MSN

What Are The Blue Lights Above Traffic Signals For?

If you've ever wondered how traffic lights work and how they can detect your car, you've probably also been curious about those small blue lights mounted above the signals themselves. These blue ...
The Connecticut Mirror

Why traffic signals are red, yellow, green — and expensive

The Connecticut Department of Transportation is installing new traffic signals that have reflective backplates. These 3-inch yellow borders improve visibility at night. Credit: CDOT / Instagram CT ...
Your Observer

Emergency traffic-light system expands in Manatee

After a successful trial run of a system that allows devices on emergency vehicles to control traffic signals while on ...
Duluth News Tribune

Ask a Trooper: Inoperative traffic lights at intersections

Q: What are the rules when a traffic light is not working properly? For example, due to a power outage? I treat them as a four-way stop, which I believe is correct. It seems, however, that not ...
Indiana Gazette

Progress is reported in getting new traffic signal set up in Elderton

Elderton Borough officials posted Friday that steel cables will be put in Monday, to hang a new set of traffic lights overhead at the intersection of U.S. Route 422 and Saltwork Street in the heart of ...