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Yellow Line (BART)

Route map:
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 Y  Yellow Line
Eastbound train leaving Rockridge station in September 2017
Overview
Other name(s)Antioch – SFO/Millbrae Line
OwnerSan Francisco Bay Area Rapid Transit District
LocaleCalifornia Delta, East Bay, San Francisco Peninsula
Termini
Stations28 (including eBART & Millbrae)
Service
TypeRapid transit
SystemBay Area Rapid Transit
History
OpenedMay 21, 1973 (1973-05-21)
Last extensionMay 26, 2018 (2018-05-26)
Technical
Line length62.2 mi (100.1 km) (includes eBART)
Track gauge
  • 5 ft 6 in (1,676 mm)
  • 4 ft 8+1⁄2 in (1,435 mm) (eBART)
ElectrificationThird rail, 1 kV DC (except eBART)
Operating speed70 mph (110 km/h)[1]
SignallingBombardier CITYFLO 550 fixed block ATC/ATO between San Bruno or Milbrae and SFO[2][3]
Route map
Map Yellow Line highlighted in yellow
Legend
Maintenance Yard
 Antioch
Parking
 Pittsburg Center
Parking
eBART
 enlarge… Pittsburg/​Bay Point
Parking
Willow Pass
through the Diablo Range
California 4.svg SR 4
 North Concord/​Martinez
Parking
Concord
Parking
 
Concord
Train Yard
 
Iron Horse Regional Trail
Pleasant Hill/
Contra Costa Centre
Parking
Contra Costa Canal
 Walnut Creek
Parking
I-680 (1961).svg I-680
California 24.svg SR 24
 Lafayette
Parking
 Orinda
Parking
Berkeley Hills Tunnel
Contra Costa County
Alameda County
California 24.svg SR 24
 Rockridge
Parking
 O  R  to Richmond
 MacArthur
Parking
southbound
transfer
I-580 (1961).svg I-580
I-980 (1961).svgCalifornia 24.svg I-980 / SR 24
19th Street Oakland
northbound
transfer
 12th Street Oakland City Center
 G  O  to Berryessa/​North San José,  B  to Dublin/​Pleasanton
I-880 (1961).svg I-880
 West Oakland
Parking
Amtrak
Transbay Tube
Alameda County
San Francisco
I-80 (1961).svg
I-80
Bay Bridge
Embarcadero San Francisco Ferry Building
Montgomery Street
Union Square/
Market Street
 Powell Street
Civic Center/​UN Plaza
16th Street Mission
24th Street Mission
Glen Park Parking |
San Jose/
Glen Park
I-280 (1961).svg I-280
Balboa Park
San Jose and Geneva
San Francisco
San Mateo County
 Daly City
Parking
Colma
Parking
Colma Maintenance Yard
California 82.svg
SR 82
El Camino Real
 South San Francisco
Parking
Centennial Way Trail
 San Bruno
Parking
Caltrain to San Francisco
US 101 (1961 cutout).svg US 101
 enlarge… San Francisco International Airport
Monorail San Francisco International Airport
 Millbrae
Caltrain Parking
evenings only
Caltrain
to Tamien & San Jose
Handicapped/disabled access All stations are accessible
This diagram:

The Yellow Line is a Bay Area Rapid Transit (BART) line in the San Francisco Bay Area that runs between Antioch and San Francisco International Airport (SFO). Some morning trains and all trains after 9 pm are extended from SFO to serve Millbrae station when the Red Line is not running. It serves 28 stations in Antioch, Pittsburg, Bay Point, Concord, Pleasant Hill, Walnut Creek, Lafayette, Orinda, Oakland, San Francisco, Daly City, Colma, South San Francisco, San Bruno, and Millbrae. It is the most-used BART line, and the only line with additional trains (between SFO and Pittsburg/Bay Point) on weekdays. It runs for 62.2 miles (100.1 km), making it the system's longest line.

The line is split into two segments. The majority of the line uses the same electric multiple unit trains as the rest of BART, and shares tracks with the four other mainline services. The 8.6-mile (13.8 km) section from Antioch to near Pittsburg/Bay Point station, known as eBART, uses diesel multiple units. A cross-platform transfer between the two modes is made at a dedicated transfer platform east of Pittsburg/Bay Point station. However, the line is shown on maps as one route, and headsigns and station information display the ultimate terminus of the line.

History

[edit]
A westbound 24th Street Limited train bypassing Orinda station

The Yellow Line was the second of BART's five rapid transit lines to open. Service from Concord to MacArthur began on May 21, 1973. The line was extended to Daly City when the Transbay Tube opened on September 16, 1974. The North Concord/​Martinez, Colma, and Pittsburg/​Bay Point stations were added in 1995–1996.[4]

Until 2015, rush hour service included trains that short turned at Concord; these trains originated at Montgomery Street during the morning peak and returned to 24th Street Mission during the evening peak. On April 1, 2015, BART fully opened the Central Contra Costa Crossover, a pair of crossover tracks south of Pleasant Hill/Contra Costa Centre station that allow trains to terminate there.[5] On September 14, 2015, the Concord short turns were cut to Pleasant Hill to allow for increased frequency. Reverse peak "Pleasant Hill Limited" trains bypassed Rockridge, Orinda, Lafayette, and Walnut Creek stations eastbound in the morning peak, and Lafayette and Orinda westbound in the evening.[6] The short turn trains were re-extended to Concord on February 10, 2020.[7] The extra commute trains were eliminated effective March 19, 2020, due to ridership decreases caused by the COVID-19 pandemic.[8]

In March 2016, mysterious electrical surges caused several cars to be taken out of service on the tracks north of North Concord/Martinez station. On March 16, 2016, BART halted service to Pittsburg/Bay Point station and established a bus bridge between North Concord and Pittsburg/Bay Point.[9] Limited service to Pittsburg/Bay Point resumed on March 21[10] and full service resumed on April 2.[11]

SFO/Millbrae extension service

[edit]

When the SFO/Millbrae extension opened on June 22, 2003, BART extended the Yellow Line to Millbrae but bypassed San Francisco International Airport station (SFO). BART rerouted this line to SFO in place of the Blue Line on February 9, 2004, with service extended to Millbrae outside of weekday peak hours.

San Mateo County is not a member of the San Francisco Bay Area Rapid Transit District, so SamTrans funded the county's BART service. When the extension's lower-than-expected ridership caused SamTrans to accrue deficits, BART agreed to SamTrans' request to operate only the Blue Line south of Daly City effective September 12, 2005.

SamTrans and BART reached an agreement in February 2007 in which SamTrans would transfer control and financial responsibility of the SFO/Millbrae extension to BART, in return for BART receiving additional fixed funding from SamTrans and other sources.[12] In January 2008, BART re-extended the line to SFO at all times, and in September 2009, trains were further extended to Millbrae on evenings and weekends.

Beginning on February 10, 2020, the Yellow Line again terminated at SFO at all times, and service from SFO to Millbrae was once again provided by the Purple Line.[13] Yellow and Purple line trains were interlined on Sundays, with no transfer required at SFO.[14] Beginning on March 22, 2021, the Yellow and Purple lines were interlined on both Saturdays and Sundays.[15] On August 2, 2021, the Purple Line was eliminated as a separate service, with the Yellow Line extended to Millbrae on evenings and Sundays when the Red Line is not operating.[16]

Effective February 14, 2022, all Yellow Line trains terminate at SFO before 9 pm; trains are extended to Millbrae after 9 pm.

Yellow Line's south-of-Daly City service
Date of change Service pattern
June 22, 2003 Daly City–Millbrae[17]
February 9, 2004 Daly City–SFO (weekday peak hours)
Daly City–SFO/Millbrae (all other times)[18]
September 12, 2005 none[19]
January 1, 2008 Daly City–SFO[20]
September 14, 2009 Daly City–SFO (weekdays)
Daly City–SFO/Millbrae (evenings/weekends)[21]
February 11, 2019 Daly City–SFO (weekdays/Sundays)
Daly City–SFO/Millbrae (nights/Saturdays)[22]
February 11, 2020 Daly City–SFO
August 2, 2021 Daly City–SFO (weekdays/Saturdays)
Daly City–SFO/Millbrae (evenings/Sundays)[16]
February 14, 2022 Daly City–SFO (until 9 pm)
Daly City–SFO/Millbrae (after 9 pm)[23]

Antioch extension service

[edit]

BART to Antioch, named during construction and commonly known as eBART (East Contra Costa BART Extension),[24][25][26] is a diesel multiple unit (DMU) light rail branch line of the Bay Area Rapid Transit (BART) system in eastern Contra Costa County, California, United States. Service starts at Pittsburg/Bay Point station and extends 8.6 miles (13.8 km) east to Antioch station.

Trains and tracks for the portion of the Yellow Line between Antioch and Pittsburg/Bay Point are incompatible with those of the main BART rapid transit system, making it impossible for trains to move between the two systems;[27] instead, passengers transfer via a cross platform interchange at an auxiliary BART stop to the east of Pittsburg/Bay Point – the BART to Antioch platform is accessible only via an intra-station ride from the main station to this auxiliary stop. Revenue service began on May 26, 2018.[28]

The BART map does not differentiate between this service and the remainder of the Yellow Line.[29][30] There is a notation on the map published in stations showing a transfer is required, but not on the schedule or map brochures distributed to the public.[31]

Stations

[edit]
Station Jurisdiction County Opened Other BART
lines
Pittsburg/​Bay Point Pittsburg / Bay Point Contra Costa December 7, 1996  Y  eBART
North Concord/​Martinez Concord December 16, 1995
Concord May 21, 1973
Pleasant Hill/​Contra Costa Centre Contra Costa Centre
Walnut Creek Walnut Creek
Lafayette Lafayette
Orinda Orinda
Rockridge Oakland Alameda
MacArthur September 11, 1972  O  Orange Line
 R  Red Line
19th Street Oakland
12th Street Oakland City Center
West Oakland September 16, 1974  B  Blue Line
 G  Green Line
 R  Red Line
Embarcadero San Francisco May 27, 1976
Montgomery Street November 5, 1973
Powell Street
Civic Center/​UN Plaza
16th Street Mission
24th Street Mission
Glen Park
Balboa Park
Daly City Daly City San Mateo
Colma Colma February 24, 1996  R  Red Line
South San Francisco South San Francisco June 22, 2003
San Bruno San Bruno
San Francisco International Airport SFO
Millbrae (after 9pm) Millbrae

References

[edit]
  1. ^ "BART Sustainable Communities Operations Analysis" (PDF). San Francisco Bay Area Rapid Transit District. Retrieved May 28, 2018.
  2. ^ "Mass transit signalling". Bombardier Transportation. Archived from the original on October 23, 2018. Retrieved October 4, 2021.
  3. ^ "Bombardier Projects in Mass-transit signalling" (PDF). Archived (PDF) from the original on June 16, 2020. Retrieved October 4, 2021.
  4. ^ "BART Chronology January 1947 – March 2009" (PDF). San Francisco Bay Area Rapid Transit District. March 2009. Archived from the original (PDF) on October 13, 2013.
  5. ^ "BART opens Contra Costa Crossover" (Press release). San Francisco Bay Area Rapid Transit District. April 1, 2015.
  6. ^ "BART schedule change aims to provide some crowding relief" (Press release). San Francisco Bay Area Rapid Transit District. September 10, 2015.
  7. ^ "BART schedule change begins February 10, 2020" (Press release). San Francisco Bay Area Rapid Transit District. January 31, 2020.
  8. ^ "Yellow line extra commute trains cancelled during low ridership" (Press release). San Francisco Bay Area Rapid Transit District. March 18, 2020.
  9. ^ Gafni, Matthias (March 29, 2016). "BART nearing full restoration of service". Contra Costa Times. Retrieved March 31, 2016.
  10. ^ Steve Rubenstein, "BART restores limited commute service to Pittsburg/Bay Point Station." SFGate, March 21, 2016. http://www.sfgate.com/bayarea/article/BART-restores-limited-commute-service-to-6930975.php
  11. ^ "BART RESUMES SERVICE AT N. CONCORD AND PITTSBURG/BAY POINT AFTER WEEKS OF REPAIRS." ABC7 News, April 2, 2016. http://abc7news.com/traffic/bart-resumes-service-between-n-concord-and-pittsburg-bay-point-/1273495/
  12. ^ "BART-SFO Settlement Agreement and Release of Claims" (PDF). Metropolitan Transportation Commission. February 14, 2007. Archived from the original (PDF) on May 12, 2009.
  13. ^ "Weekday Schedule as of February 20, 2020" (PDF). San Francisco Bay Area Rapid Transit District.
  14. ^ "BART schedule change begins February 10, 2020" (Press release). San Francisco Bay Area Rapid Transit District. January 31, 2020.
  15. ^ "BART schedule change begins March 22, 2021" (Press release). San Francisco Bay Area Rapid Transit District. March 16, 2021.
  16. ^ a b "BART returns to near-regular service starting 8/2/21" (Press release). San Francisco Bay Area Rapid Transit District. July 26, 2021.
  17. ^ Cabanatuan, Michael (April 18, 2003). "BART to link to SFO June 22 / After many delays, latest date is firm, transit officials say". San Francisco Chronicle.
  18. ^ Cabanatuan, Michael (February 7, 2004). "BART changing schedule so more go to SFO / Peninsula ridership below expectations, needs a boost". San Francisco Chronicle.
  19. ^ Murphy, Dave (August 11, 2005). "PENINSULA / BART to airport to be cut / Weekend trains to be kept on Peninsula". San Francisco Chronicle.
  20. ^ Gordon, Rachel (December 9, 2007). "BART to raise fares, increase train frequency starting Jan. 1". San Francisco Chronicle.
  21. ^ "Off-peak service reductions began Monday, September 14th" (Press release). San Francisco Bay Area Rapid Transit District. September 15, 2009.
  22. ^ "February 11 schedule change impacts weekdays and Sundays" (Press release). San Francisco Bay Area Rapid Transit District. January 15, 2019.
  23. ^ "BART schedule change begins 2/14/22, extending service to midnight on Sundays | bart.gov". www.bart.gov. Retrieved February 15, 2022.
  24. ^ Roth, Rob. "BART unveils diesel-powered eBART Antioch extension". KTVU. Archived from the original on October 11, 2016. Retrieved October 18, 2016.
  25. ^ "East Contra Costa BART Extension (eBART)". Bay Area Rapid Transit (BART). April 3, 2013. Retrieved August 12, 2015.
  26. ^ https://www.bart.gov/about/projects/ecc/faq , "What is eBART and BART to Antioch?"
  27. ^ "Stadler awarded eBART train contract". Railway Gazette. DVV Media UK. April 28, 2014. Archived from the original on November 20, 2015. Retrieved November 18, 2015.
  28. ^ "East Contra Costa BART Extension (eBART)". BART. Retrieved April 25, 2018.
  29. ^ "Station List". BART.
  30. ^ "BART SCOA Final Report June 2013" (PDF). BART.gov. BART. Retrieved May 28, 2017.
  31. ^ see for instance https://www.bart.gov/sites/default/files/docs/F%26S_MAY%202018%20ENGLISH.pdf, p. 2
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