A group of Bay Area entrepreneurs has paired artificial intelligence with traffic lights and may be blazing a trail to the future.

San Anselmo is a small town, but you wouldn't know it from the intersection known as "The Hub," where Sir Francis Drake, Red Hill and Center Boulevards meet. At 65,000 cars per day, it is the busiest intersection in Marin County. But that means a lot of waiting at red lights.

"They get complaints about this intersection," said Collin Barnwell, CEO of Roundabout Technologies. "Residents have been telling them for years that they have a problem. It's a difficult problem to solve without putting a lot of money into infrastructure, pouring a lot of concrete."

But Barnwell and Chief Technology Officer Sabeek Pradhan may have solved that problem. Their startup com

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