The first traffic signals were not red, ... Now they’re being replaced with high endurance LED lamps which give as much light but only require 10 – 25 watts of electricity.

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.

These signals only had red and green, but no interval for reaction time, so this led to many accidents, giving Morgan an idea to design an automated signal with an interim “warning” position ...

Researchers are exploring ways to use features in modern cars, such as GPS, to make traffic safer and more efficient. Eventually, the upgrades could do away entirely with the red, yellow and green ...

The bright LED lights are mounted on the side of traffic poles and light up when the traffic signals going in that specific direction are red. There is a red indicator light, which indicates a ...

Smarter vehicles could mean some of the most dramatic changes for the traditional traffic signal since the yellow light was added more than a century ago.

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 ...

Santee city officials say they now have a high-tech solution to the issue of red-light running and illegal turns at busy ...

Of the 830 traffic signals the DOT manages across Western New York, they've installed 70 Miovision camera systems, with more coming this year. Jocelyn Furer has a dedicated burner account to ...

Google is analyzing data from its Maps app to suggest how cities can adjust traffic light timing to cut wait times and emissions. The company says it’s already cutting stops for millions of drivers.