These simulators are showing researchers that traffic improves with the presence of AVs and a fourth traffic light and that fuel consumption is much lower as there is much less stop-and-go movement.

Traffic lights might see a fourth signal as self-driving cars become more practical. Getty Images/iStockphoto. The researcher’s latest plans differ from a 2020 model of a four-light intersection.

A small number of traffic lights are connected to cameras, radar systems or sensors below the road, any of which can detect cars and trigger a light to turn from red to green. But even these ...

How are traffic lights timed? 02:29 MINNEAPOLIS — It lasts mere seconds but can feel like minutes.Getting stuck at a red light, especially with no traffic around, is frustrating at times. We ...

Bryan E. Porter is among the world’s top authorities on red-light running. An associate professor of psychology at Old Dominion University, he not only has studied the topic for the past 12 ...

Life on the road might be simpler without left turns, but unless the future is full of roundabouts, they're here to stay. Last week's Traffic Talk column explored left turns and responsible turn ...

I recently visited the city of Fort Collins Traffic Operations facility, 626 Linden St., to have staff explain the thought process that is used for the timing of 180 traffic signals as well as 100 ...

The Traffic Operations Center located in City Hall at 915 I St., monitors traffic through the use of a computer-based traffic signal control system, according to the city of Sacramento website.