Google's AI stoplight program is now calming traffic in a dozen cities worldwide

It's been two years since Google first debuted Project Green Light, a novel means of addressing the street-level pollution caused by vehicles idling at stop lights. At its Sustainability ‘23 event on Tuesday, the company discussed some of the early findings from that program and announced another wave of expansions for it.

Green Light uses machine learning systems to comb through Maps data to calculate the amount of traffic congestion present at a given light, as well as the …

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