The simplest traffic light is a four-way intersection; one without any detectors, cameras, or outside intervention of any sort. A signal timing plan is the most basic way to control these lights.

Researchers propose fourth traffic signal light for hypothetical self-driving car future It's called 'white' for now, until a color that 'does not create confusion' is picked. By Andrew Paul ...

If all the cars were robots, maybe you wouldn't even need the traffic light. The self-driving vehicles would just ping their vectors at each other, ... Maybe — but it's not quite that simple.

That means everyone stops, and then follows these three simple rules: The person that gets there first goes first. If there's a tie, you yield to the person on your right.

Urban planners in Vienna, Austria, installed their first smart traffic lights specifically designed to increase pedestrian safety in 2018. After years of analysis and improvement, the Graz ...

Prior to Project Green Light, cities would try to optimize traffic lights using expensive sensors or time-consuming manual vehicle counts. SDOT said it typically receives community feedback about ...