narrow the possible alignment options for the proposed second crossing. The study would continue to consider standard-gauge railway options in order to allow connections to Caltrain, CHSR, Capitol Corridor, and potentially other rail services. In media During construction, the Transbay Tube was also used briefly as a shooting location for the ending of George Lucas's film THX 1138. The final vertical climb out to daylight was actually filmed, with the camera rotated 90°, in the incomplete (and decidedly horizontal) Transbay Tube. The scene was filmed before installation of the track supports, with Robert Duvall's character using exposed reinforcing bars as a ladder. The television adaptation of Terry Brooks's Shannara series of books, The Shannara Chronicles, is partly set in the Bay Area, and part of the journey/quest routes the protagonists through the Transbay Tube. One of the early sections of the video game Dead Space features a sound sample taken from a ride through the Transbay Tube. See also Key System Richmond–San Rafael Bridge: Early proposals by T.A. Tomasini included a tunnel from San Francisco meeting a bridge between Albany and Tiburon. References External links BART History Bay Area Rapid Transit Buildings and structures in the San Francisco Bay Area Railroad tunnels in California Tunnels in San Francisco Tunnels in the San Francisco Bay Area Immersed tube tunnels in the United States Transportation buildings and structures in Alameda County, California Rail transportation in Oakland, California Tunnels completed in 1974