The first driverless bus approved for use on public roads in California debuted on Tuesday, as local leaders lauded the potential of such vehicles to improve public-transit outcomes in and around the city of San Ramon.

“It’s a momentous day for San Ramon and for Bishop Ranch,” Mayor Bill Clarkson told ABC station KGO-TV in San Francisco.

Bishop Ranch, a 585-acre office park where approximately 30,000 work, proved fertile testing grounds for the shuttle, and commuters to the area may be among the first to benefit from further deployments. Contra Costa County may be using as many as 100 of the buses by 2020.

Read the full story at ABC News