Traffic lights revolutionised road safety, beginning with a gas-powered signal in 1868 London. From the first electric light in 1914 to today's smart systems, these signals remain essential ...

Google built an AI that monitors the amount of idling at intersections to help city planners cut congestion and reduce air pollution. Now it's working in 70 intersections.

In February, Boston joined forces with Google's “Project Green Light” team, a research initiative aimed at curbing tailpipe emissions and traffic delays.

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. Andrew Paul ...