Not to be confused with I-580, Golden Gate Transit has a new line! The 580 travels between Emeryville, Berkeley, Albany and then to San Rafael, with five westbound AM trips and five eastbound PM trips every 30 minutes.
The line went into effect on December 20th, and will be made permanent if its performance is met over the course of the next nine months.
The 580 is Golden gate Transit's only line to Berkeley and Emeryville, so now commuters have a whole new way of reaching the North Bay. The 580 does run parallel to the 40 briefly, but extends much farther south.