Transbay Transit Center

http://temporaryterminal.org/

The new transit center project designed by PCPA at first and mission is covering from mission st. to folsom st., connecting eight Bay Area counties and the State of California through 11 transit systems: AC Transit, BART, Caltrain, Golden Gate Transit, Greyhound, Muni, SamTrans, WestCAT Lynx, Amtrak, Paratransit and future High Speed Rail from San Francisco to Los Angeles/Anaheim

there're useful informations on the TJPA website