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If this approach could be rolled out nationwide, its proponents say it could make a significant dent in the amount of time we all spend idling at the country’s 300,000-plus traffic signals. Data from the cities where Google’s Green Light is already in operation—including Abu Dhabi, Hamburg, Seattle and Kolkata—suggest the system yields a 30% reduction in stop-and-go traffic at intersections.

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If this approach could be rolled out nationwide, its proponents say it could make a significant dent in the amount of time we all spend idling at the country’s 300,000-plus traffic signals. Data from the cities where Google’s Green Light is already in operation—including Abu Dhabi, Hamburg, Seattle and Kolkata—suggest the system yields a 30% reduction in stop-and-go traffic at intersections.
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Christopher Mims (mimsical@mastodon.social)'s status on Sunday, 09-Jun-2024 23:01:15 JST Christopher Mims

4/🧵
Here's the key thing: Once you start monitoring traffic in cities 24/7 using data that's *already available* from our cars + mobile devices (and yes, it's anonymized) you can actually chop down the cost of maintaining existing traffic signals.
No more expensive traffic studies to re-time lights. Crews can be redeployed to adjust timing on existing signals. "Green waves" of lights can be orchestrated to speed traffic from one signal to another when needed.

In conversation about a year ago from mastodon.social permalink