After the Oakland Map, here is the San Francisco version. I came to think that at $250 million a mile for a subway, this project might cost around the same as Denver's massive Fastrax expansion which is scheduled to cost $4.7 billion dollars. With such a massive expansion in mobility, it allows for a massive expansion in ridership. Muni currently carries about 700,000 trips a day but only 146,000 of those on the Muni Metro. But Washington Metro has get's almost 900,000 riders with its Metro system. I imagine such a system with the inclusion of Oakland's metro could push ridership way above that. Now this map was created as a BART connected system which would probably make the most sense. But I imagine some of these lines could be Muni Metro also.