{"id":null,"ids":[],"kind":"named in documents","name":"Transbay Tube","tied_by":"name","block":null,"release":"v0.7.1","rows_columns":["t","id","year","y","date","kind","topic","outcome","summary","tier","source","leaf","scan","addr","quote","note","title","how","g","rec","sc"],"rows":[["d","qipu:sf/decision/journalofproceed53sanfrich:845/4",1958,1958,"1958-11-17","other","transit","referred","BART's draft report on rapid transit, freeways and an underwater Transbay tube was referred to the County, State and National Affairs Committee.","quoted","journalofproceed53sanfrich",845,"https://archive.org/details/journalofproceed53sanfrich/page/n845",null,null,null,null,"n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124877529:59/2",1984,1962,"1962","event","study or report",null,"BART transbay tube · other: Funding commitment from state toll bridge funds for transbay tube construction after decision to build BART","unverified","C124877529",59,"https://archive.org/details/C124877529/page/n58",null,null,null,"An analysis, the financial feasibility of public transit recommendations in the San Francisco downtown plan","n","a",0,4.0],["d","qipu:sf/decision/journalofproceed64sanfrich:347/4",1969,1969,"1969-04-14","resolution","transit","passed","Board adopted a resolution asking the Mayor to celebrate completion of the BART Transbay Tube with ceremonies.","quoted","journalofproceed64sanfrich",347,"https://archive.org/details/journalofproceed64sanfrich/page/n347",null,null,null,null,"n","a",0,3.03],["d","qipu:sf/decision/journalofproceed64sanfrich|g698",1969,1969,"1969-04-14",null,"other","passed","Mayor asked to plan celebrations for BART's Transbay Tube","unverified","journalofproceed64sanfrich",347,"https://archive.org/details/journalofproceed64sanfrich/page/n347",null,null,null,null,"n","a",0,-0.08],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123305129:7/1",null,1973,"1973","event","annual report",null,"First train under automatic control · event: Travelled through the Transbay Tube to Montgomery Street Station (S.F.)","unverified","C123305129",7,"https://archive.org/details/C123305129/page/n6","Montgomery Street",null,null,"San Francisco Bay Area Rapid Transit District chronology","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124901922:7/1",1977,1974,"1974","event","study or report",null,"BART transbay tube · event: BART transbay tube opened; sudden shift in trend lines","unverified","C124901922",7,"https://archive.org/details/C124901922/page/n6",null,null,null,"Trends in traffic patterns at the Bay Bridge and Caldecott Tunnel","n","m",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124901922:22/5",1977,1974,"1974 (September)","event","study or report",null,"BART transbay tube · event: BART transbay tube opened, completing BART route network; 6-minute headways transbay","unverified","C124901922",22,"https://archive.org/details/C124901922/page/n21",null,null,null,"Trends in traffic patterns at the Bay Bridge and Caldecott Tunnel","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123305156:9/2",1975,1975,"2/28/75","project","study or report",null,"Transbay Tube · cost usd: $176,000,000","unverified","C123305156",9,"https://archive.org/details/C123305156/page/n8",null,null,null,"System operations fact sheet : background information","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C101697104:5/1",1976,1976,"","building","study or report",null,"Transbay Tube · other: 4 miles beneath San Francisco Bay","unverified","C101697104",5,"https://archive.org/details/C101697104/page/n4",null,null,null,"Impact of BART on transportation and travel : interim service findings : interpretive summary : a report","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C101697104:6/4",1976,1976,"","finding","study or report",null,"BART Transbay Tube · other: Maximum speed 80 miles an hour attained in Transbay Tube","unverified","C101697104",6,"https://archive.org/details/C101697104/page/n5",null,null,null,"Impact of BART on transportation and travel : interim service findings : interpretive summary : a report","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123301965:131/1",1976,1976,"","building","study or report",null,"Transbay Tube · other: granular base material used to spread the Tube structure weight evenly over the soft Bay bottom mud","unverified","C123301965",131,"https://archive.org/details/C123301965/page/n130",null,null,null,"Impacts of BART on the natural environment : interim service findings /","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123301965:135/1",1976,1976,"","finding","study or report",null,"Transbay Tube · finding: A granular material was used as a base to mitigate possible liquefaction effects","unverified","C123301965",135,"https://archive.org/details/C123301965/page/n134",null,null,null,"Impacts of BART on the natural environment : interim service findings /","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123301965:29/1",1976,1976,"","finding","study or report",null,"Transbay Tube · finding: Heat from the tube into cold Bay bottom waters judged negligible to marine ecological systems","unverified","C123301965",29,"https://archive.org/details/C123301965/page/n28",null,null,null,"Impacts of BART on the natural environment : interim service findings /","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123301965:29/2",1976,1976,"","finding","study or report",null,"Transbay Tube · finding: Tube poses no barrier to migrating bottom-dwelling organisms such as crabs","unverified","C123301965",29,"https://archive.org/details/C123301965/page/n28",null,null,null,"Impacts of BART on the natural environment : interim service findings /","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123301965:85/1",1976,1976,"","finding","study or report",null,"Transbay Tube · finding: did not materially alter the bottom configuration of the Bay","unverified","C123301965",85,"https://archive.org/details/C123301965/page/n84",null,null,null,"Impacts of BART on the natural environment : interim service findings /","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123301965:35/1",1976,1976,"1976","measure","study or report",null,"BART Transbay Tube · other: Granular base material to spread weight over soft Bay mud and mitigate liquefaction effects","unverified","C123301965",35,"https://archive.org/details/C123301965/page/n34",null,null,null,"Impacts of BART on the natural environment : interim service findings /","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C101697104:13/1",1976,1976,"September 1974","event","study or report",null,"BART Transbay Tube · event: Transbay Tube opened","unverified","C101697104",13,"https://archive.org/details/C101697104/page/n12",null,null,null,"Impact of BART on transportation and travel : interim service findings : interpretive summary : a report","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C101697104:6/1",1976,1976,"September 1974","event","study or report",null,"BART Transbay Tube · event: Service through the Transbay Tube inaugurated","unverified","C101697104",6,"https://archive.org/details/C101697104/page/n5",null,null,null,"Impact of BART on transportation and travel : interim service findings : interpretive summary : a report","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124901737:8/2",1977,1977,"","site","study or report",null,"Transbay Tube · other: links Oakland and the East Bay with San Francisco and the West Bay","unverified","C124901737",8,"https://archive.org/details/C124901737/page/n7",null,null,null,"The impact of BART's bond issue on regional public financing : technical memorandum","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124901922:10/2",1977,1977,"","project","study or report",null,"BART Transbay Tube · other: last section to open, linking Oakland and the East Bay with San Francisco and the West Bay","unverified","C124901922",10,"https://archive.org/details/C124901922/page/n9",null,null,null,"Trends in traffic patterns at the Bay Bridge and Caldecott Tunnel","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906205:20/1",1977,1977,"","finding","study or report",null,"Transbay Tube · finding: Ear discomfort is often experienced as trains enter the Transbay Tube","unverified","C124906205",20,"https://archive.org/details/C124906205/page/n19",null,null,null,"Environmental impacts of BART : the user's experience","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906205:90/1",1977,1977,"","site","study or report",null,"Transbay Tube · other: trains accelerate to a cruising speed as high as 80 MPH","unverified","C124906205",90,"https://archive.org/details/C124906205/page/n89",null,null,null,"Environmental impacts of BART : the user's experience","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906205:94/1",1977,1977,"","finding","study or report",null,"BART train lighting system · finding: wall lights spaced along the Transbay tube produce an annoying flashing effect","unverified","C124906205",94,"https://archive.org/details/C124906205/page/n93",null,null,null,"Environmental impacts of BART : the user's experience","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906311:47/1",1977,1977,"","project","study or report",null,"BART fixed elements · cost usd: $790,493,000","unverified","C124906311",47,"https://archive.org/details/C124906311/page/n46",null,null,null,"A description of BART : its facilities, service and surroundings","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906311:47/4",1977,1977,"","project","study or report",null,"Transbay Tube and approaches · cost usd: $132,720,000","unverified","C124906311",47,"https://archive.org/details/C124906311/page/n46",null,null,null,"A description of BART : its facilities, service and surroundings","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906311:61/2",1977,1977,"","site","study or report",null,"BART transbay tube · other: 3,6-mile transbay tube between Oakland and San Francisco","unverified","C124906311",61,"https://archive.org/details/C124906311/page/n60",null,null,null,"A description of BART : its facilities, service and surroundings","n","m",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906311:82/3",1977,1977,"","measure","study or report",null,"CABS-I transbay tube modification · other: pseudo-stations established at intermediate points in the transbay tube to allow 5-minute headways","unverified","C124906311",82,"https://archive.org/details/C124906311/page/n81",null,null,null,"A description of BART : its facilities, service and surroundings","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906393:16/3",1977,1977,"","site","study or report",null,"Transbay Tube · other: last BART section to open, linking Oakland and the East Bay with San Francisco and the West Bay","unverified","C124906393",16,"https://archive.org/details/C124906393/page/n15",null,null,null,"BART's operating energy consumption","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906393:18/1",1977,1977,"","site","study or report",null,"BART station energy · other: station energy includes ventilating the Transbay Tube","unverified","C124906393",18,"https://archive.org/details/C124906393/page/n17",null,null,null,"BART's operating energy consumption","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906393:39/1",1977,1977,"","finding","study or report",null,"BART · finding: negligible change in net operating energy consumption","unverified","C124906393",39,"https://archive.org/details/C124906393/page/n38",null,null,null,"BART's operating energy consumption","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906393:39/2",1977,1977,"","finding","study or report",null,"BART · other: energy savings of 4,200 gallons of fuel daily suggested by Table 7","unverified","C124906393",39,"https://archive.org/details/C124906393/page/n38",null,null,null,"BART's operating energy consumption","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906393:39/3",1977,1977,"","finding","study or report",null,"BART · other: extra fuel for new BART trips probably less than 500 gallons daily","unverified","C124906393",39,"https://archive.org/details/C124906393/page/n38",null,null,null,"BART's operating energy consumption","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906393:39/7",1977,1977,"","finding","study or report",null,"BART · other: Transbay Tube carries about 40% of all BART ridership","unverified","C124906393",39,"https://archive.org/details/C124906393/page/n38",null,null,null,"BART's operating energy consumption","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906393:39/8",1977,1977,"","finding","study or report",null,"BART · finding: corridor conclusions do not necessarily apply to the whole BART System","unverified","C124906393",39,"https://archive.org/details/C124906393/page/n38",null,null,null,"BART's operating energy consumption","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906393:35/2",1977,1977,"1977","finding","study or report",null,"BART peak period reverse direction · finding: BART trains carry an average of only 90 people in the peak period reverse direction","unverified","C124906393",35,"https://archive.org/details/C124906393/page/n34",null,null,null,"BART's operating energy consumption","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906393:35/4",1977,1977,"1977","finding","study or report",null,"BART empty trains · finding: essentially all cars run through the Transbay Tube into San Francisco in the morning peak have to run back empty","unverified","C124906393",35,"https://archive.org/details/C124906393/page/n34",null,null,null,"BART's operating energy consumption","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906393:32/2",1977,1977,"6:30 a.m. to 9:00 a.m. eastbound","measure","study or report",null,"BART transbay service · other: 11 passengers per car, 15% seat occupancy, peak period/reverse direction","unverified","C124906393",32,"https://archive.org/details/C124906393/page/n31",null,null,null,"BART's operating energy consumption","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906393:32/1",1977,1977,"6:30 a.m. to 9:00 a.m. westbound; 4:00 p.m. to 6:30 p.m. eastbound","measure","study or report",null,"BART transbay service · other: 68 passengers per car, 94% of available seats, peak period/peak direction","unverified","C124906393",32,"https://archive.org/details/C124906393/page/n31",null,null,null,"BART's operating energy consumption","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906393:32/3",1977,1977,"9:00 a.m. to 4:00 p.m.","measure","study or report",null,"BART transbay service · other: average seat occupancy 41% in off-peak period","unverified","C124906393",32,"https://archive.org/details/C124906393/page/n31",null,null,null,"BART's operating energy consumption","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906393:32/6",1977,1977,"9:00 a.m. to 4:00 p.m.","measure","study or report",null,"BART transbay share of person-trips · other: BART 17% of transbay person-trips in off-peak period","unverified","C124906393",32,"https://archive.org/details/C124906393/page/n31",null,null,null,"BART's operating energy consumption","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124909766:18/2",1977,1977,"September 1972 to September 1974","event","study or report",null,"Transbay Tube · event: last BART section to open, linking Oakland and the East Bay with San Francisco and the West Bay","unverified","C124909766",18,"https://archive.org/details/C124909766/page/n17",null,null,null,"Travel in the BART service area /","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124901533:10/2",1977,1977,"September 1974","building","study or report",null,"Transbay Tube · other: links Oakland and the East Bay with San Francisco and the West Bay; last BART section to open","unverified","C124901533",10,"https://archive.org/details/C124901533/page/n9",null,null,null,"Impacts of BART on Bay Area institutions of higher education and other students /","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124901931:13/1",1977,1977,"September 1974","building","study or report",null,"BART transbay tube · built: last stage opened, linking downtown San Francisco and Oakland","unverified","C124901931",13,"https://archive.org/details/C124901931/page/n12",null,null,null,"Explanatory modeling of transbay travel choice : working paper","n","a",0,4.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906205:8/3",1977,1977,"September 1974","building","study or report",null,"Transbay Tube · built: last section to open, linking Oakland and the East Bay with San Francisco and the West Bay","unverified","C124906205",8,"https://archive.org/details/C124906205/page/n7",null,null,null,"Environmental impacts of BART : the user's experience","n","a",0,3.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906296:14/3",1977,1977,"September 1974","project","study or report",null,"Transbay Tube · event: last section of BART to open, linking Oakland and the East Bay with San Francisco and the West Bay","unverified","C124906296",14,"https://archive.org/details/C124906296/page/n13",null,null,null,"BART impacts on travel by ethnic minorities : working paper","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906311:16/10002",1977,1977,"September 1974","event","study or report",null,"Transbay Tube · event: Became the last major line segment opened for service","unverified","C124906311",16,"https://archive.org/details/C124906311/page/n15",null,null,null,"A description of BART : its facilities, service and surroundings","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906311:44/2",1977,1977,"September 1974","event","study or report",null,"Transbay Tube · built: opened, revenue service between San Francisco and Oakland","unverified","C124906311",44,"https://archive.org/details/C124906311/page/n43",null,null,null,"A description of BART : its facilities, service and surroundings","n","a",0,3.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906490:26/5",1977,1977,"September 1974","event","study or report",null,"Transbay Tube · built: Last BART section to open, linking Oakland with San Francisco","unverified","C124906490",26,"https://archive.org/details/C124906490/page/n25",null,null,null,"Exploratory network analyses of BART's impacts on accessibility : working report","n","a",0,4.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124909766:11/2",1977,1977,"September 1974","project","study or report",null,"BART transbay tube · other: underwater transbay tube linking the downtowns of San Francisco and Oakland, the last stage opened","unverified","C124909766",11,"https://archive.org/details/C124909766/page/n10",null,null,null,"Travel in the BART service area /","n","m",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906108:16/3",1977,1977,"September, 1974","project","study or report",null,"Transbay Tube · event: last section of BART to open, linking Oakland and the East Bay with San Francisco and the West Bay","unverified","C124906108",16,"https://archive.org/details/C124906108/page/n15",null,null,null,"Social impacts of BART on Bay Area families and life styles : technical memorandum","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906393:32/4",1977,1977,"peak periods, peak direction","measure","study or report",null,"BART transbay share of person-trips · other: BART 26% of transbay person-trips in peak direction","unverified","C124906393",32,"https://archive.org/details/C124906393/page/n31",null,null,null,"BART's operating energy consumption","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906393:32/5",1977,1977,"peak periods, reverse direction","measure","study or report",null,"BART transbay share of person-trips · other: BART 12% of transbay person-trips in peak period reverse direction","unverified","C124906393",32,"https://archive.org/details/C124906393/page/n31",null,null,null,"BART's operating energy consumption","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124899682:14/2",1978,1978,"","project","study or report",null,"BART Transbay Tube · built: Transbay Tube linking Oakland and the East Bay with San Francisco and the West Bay","unverified","C124899682",14,"https://archive.org/details/C124899682/page/n13",null,null,null,"Land use and urban development project : program-wide case studies","n","a",0,4.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906409:6/3",1978,1978,"","project","study or report",null,"Transbay Tube · other: last section of BART to open, linking Oakland with San Francisco","unverified","C124906409",6,"https://archive.org/details/C124906409/page/n5",null,null,null,"Study of workers' location decisions : working paper","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906010:73/1",1978,1978,"September 1974","project","study or report",null,"BART · built: All lines in operation with opening of the Transbay tube","unverified","C124906010",73,"https://archive.org/details/C124906010/page/n72",null,null,null,"Implications of BART's mobility and accessibility impacts for the transportation disadvantaged","n","a",0,4.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906214:10/3",1978,1978,"September 1974","event","study or report",null,"Transbay Tube · built: last section of BART to open, linking Oakland with San Francisco","unverified","C124906214",10,"https://archive.org/details/C124906214/page/n9",null,null,null,"Land use and urban development project : recommendations for long-term monitoring : working paper","n","a",0,4.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124899992:10/1",1978,1978,"September, 1972 to September, 1974","event","study or report",null,"BART Transbay Tube · other: Last section to open, linking Oakland and the East Bay with San Francisco and the West Bay","unverified","C124899992",10,"https://archive.org/details/C124899992/page/n9",null,null,null,"Study of BART's consumption of land and property : working paper","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124906010:8/2",1978,1978,"September, 1974","event","study or report",null,"BART Transbay Tube · event: Last section of BART to open, linking Oakland with San Francisco","unverified","C124906010",8,"https://archive.org/details/C124906010/page/n7",null,null,null,"Implications of BART's mobility and accessibility impacts for the transportation disadvantaged","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124902698:116/1",1988,1988,"","finding","plan",null,"BART Transbay Tube · finding: could be closed to normal operations for over 72 hours after the earthquake","unverified","C124902698",116,"https://archive.org/details/C124902698/page/n115",null,null,null,"City and county of San Francisco multi-hazard functional plan","n","a",0,4.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124902698:116/2",1988,1988,"","finding","plan",null,"BART Transbay Tube · other: clearance of trains from the tube could take up to 24 hours","unverified","C124902698",116,"https://archive.org/details/C124902698/page/n115",null,null,null,"City and county of San Francisco multi-hazard functional plan","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124919315:83/2",1997,1997,"","finding","study or report",null,"Transbay tube (BART) · finding: Not expected to experience significant damage in a future earthquake","unverified","C124919315",83,"https://archive.org/details/C124919315/page/n82",null,null,null,"Riding out future quakes : pre-earthquake planning for post-earthquake transportation system recovery in the San Francisco Bay region","n","a",0,4.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124925065:28/5",2000,2000,"","measure","study or report",null,"Transbay Tube rolling stock · other: 48 cars with 10-car trains and 20% spare ratio","unverified","C124925065",28,"https://archive.org/details/C124925065/page/n27",null,null,null,"Bay Bridge rail feasibility study","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124925065:23/2",2000,2000,"2000","alternative","study or report",null,"Alternative B - BART relief line · alternative: take one of four transbay BART lines out of the Transbay Tube and place it on the Bay Bridge","unverified","C124925065",23,"https://archive.org/details/C124925065/page/n22",null,null,null,"Bay Bridge rail feasibility study","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124925065:87/4",2000,2000,"2000","finding","study or report",null,"BART Transbay tube · finding: Will soon reach capacity","unverified","C124925065",87,"https://archive.org/details/C124925065/page/n86",null,null,null,"Bay Bridge rail feasibility study","n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124914713:50/1",1993,2010,"2010","finding","study or report",null,"BART transbay tube · other: BART capacity of 21,735 passengers through the tube in the am peak hour at policy load factor","unverified","C124914713",50,"https://archive.org/details/C124914713/page/n49",null,null,null,"Transbay Transit Terminal current and future needs study : staff working paper : final","n","m",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124914713:50/2",1993,2010,"2010","finding","study or report",null,"BART transbay tube · other: BART assumed to operate at a 1.49 peak hour load factor, against a policy level of 1.15","unverified","C124914713",50,"https://archive.org/details/C124914713/page/n49",null,null,null,"Transbay Transit Terminal current and future needs study : staff working paper : final","n","m",0,0.0]]}