Transbay Transit Center

  • Arup’s unique combination of consulting services is providing the Transbay Transit Center architecture team and owner invaluable guidance.
  • This six-level transit center will be the Northern terminus for six high-speed and commuter rail terminal tracks and the intermodal hub for five major transit providers.
  • A graceful cable bridge will provide a direct transbay bus connection to the Center from the Bay Bridge.


Arup’s state-of-the art design provides for a vibrant new mix of residential and commercial uses in the heart of downtown San Francisco. It spans four city blocks and provides intercity, regional, and commuter bus services for five major transit providers at the ground and bus deck levels.

Underground, the new transit center will have three 1,300-foot long train platforms, providing four terminal tracks for the new High Speed Rail service from Southern California and two tracks for the Caltrain commuter rail service.

Arup's San Francisco office began work on concept validation in June 2008 and will provide complete engineering design, as well as bid phase and construction administration services though project completion in the spring of 2017.

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  • Aerial view of Transbay Transit Center. Credit Pelli Clark Pelli.Open gallery

    The center will act as a civic landmark and the hub of a new area of development in San Francisco.

  • Transbay Transit Center's Grand Hall. Credit Pelli Clarke Pelli.Open gallery

    Arup performed a detailed analysis to assess the blast resistance of the main structural and façade components.