[Frisco_Zig]

Originally Posted by mahanakorn

Maybe this idea has previously been discussed and discarded, but I've never heard it suggested before: why not piggyback the central subway on top of the Caltrain bore under 2nd Street (a la Market Street subway)?

The subway could have stops at Brannan, Folsom, and Market, then continue up Montgomery with stops near California, Columbus/Broadway/Chinatown, Washington Square. A spur from the northern segment of the line could connect into the Trans-Bay Terminal, again atop or aligned with the Caltrain tunnel.

BRT could serve the Caltrain - 4th St - Stockton route, turning west after Chinatown along Broadway (to van Ness? to Fillmore? to the Presidio?).

Seems this alignment would get more service closer to where it's most needed (West SoMa, Financial District, Chinatown). But... would the funding authorities allow funding for the two projects to be combined?

That would actually serve the new residential high rise neighborhoods, Transbay terminal and the Financial district. Seems to make to much sense to be possible.