The Millbrae Intermodal Terminal is an at-grade Bay Area Rapid Transit (BART) and Caltrain station located in suburban Millbrae, California, in northern San Mateo County. It was expected to support over 30,000 BART trips per day, but has consistently fallen well short of projections.DescriptionMillbrae Station is the largest intermodal terminal in the United States west of the Mississippi (the under-construction Transbay Transit Center in San Francisco will be larger when completed). It has three ground-level tracks for BART and two for Caltrain. An island platform allows a cross-platform connection between the two systems (for traveling to San Francisco or the San Francisco International Airport). A concourse mezzanine is above the platforms. Currently two BART tracks and one island platform usually are kept out of regular service, used instead to hold train sets that are also out of service.The station is also a regional bus transit hub with multiple bus bays served by several SamTrans lines.
