Yellow Line (BART)

Y Yellow Line
Y Yellow Line
	Eastbound train leaving Rockridge station in September 2017
Overview
Other name(s)	Antioch – SFO/Millbrae Line
Owner	San Francisco Bay Area Rapid Transit District
Locale	California Delta, East Bay, San Francisco Peninsula
Termini	Antioch ; San Francisco International Airport ; Millbrae (after 9pm); ;
Stations	28 (including eBART & Millbrae)
Service
Type	Rapid transit
System	Bay Area Rapid Transit
History
Opened	May 21, 1973
Last extension	May 26, 2018
Technical
Line length	62.2 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);
Electrification	Third rail, 1 kV DC (except eBART)
Operating speed	70 mph (110 km/h)
Signalling	Bombardier CITYFLO 550 fixed block ATC/ATO between San Bruno or Milbrae and SFO
Route map
Route map
	Legend
	Willow Pass
	through the Diablo Range
	Concord
	Train Yard
	Pleasant Hill/
	Contra Costa Centre
	Contra Costa County
	Alameda County
	southbound
	transfer
	northbound
	transfer
	■ ■ to Berryessa/North San José
	■ to Dublin/Pleasanton
	Alameda County
	San Francisco
	I-80
	Bay Bridge
	Union Square/
	Market Street
	San Jose/
	Glen Park
	San Francisco
	San Mateo County
	SR 82
	El Camino Real
	Caltrain
	to Tamien & San Jose
	All stations are accessible
	This diagram: view ; talk ; edit ;

Last updated November 06, 2024

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

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

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

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

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	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

Related Research Articles

Bay Area Rapid Transit (BART) is a rapid transit system serving the San Francisco Bay Area in California. BART serves 50 stations along six routes and 131 miles of track, including eBART, a 9-mile (14 km) spur line running to Antioch, and Oakland Airport Connector, a 3-mile (4.8 km) automated guideway transit line serving San Francisco Bay Oakland International Airport. With an average of 165,400 weekday passenger trips as of the second quarter of 2024 and 48,119,400 annual passenger trips in 2023, BART is the sixth-busiest rapid transit system in the United States.

AC Transit is an Oakland-based public transit agency serving the western portions of Alameda and Contra Costa counties in the East Bay of the San Francisco Bay Area. AC Transit also operates "Transbay" routes across San Francisco Bay to San Francisco and selected areas in San Mateo and Santa Clara counties. AC Transit is constituted as a special district under California law. It is governed by seven elected members. It is not a part of or under the control of Alameda or Contra Costa counties or any local jurisdictions.

The Red Line is a Bay Area Rapid Transit (BART) line in the San Francisco Bay Area that runs between Richmond station and Millbrae station via San Francisco International Airport station. It has 24 stations in Richmond, El Cerrito, Berkeley, Oakland, San Francisco, Daly City, Colma, South San Francisco, San Bruno, and Millbrae. The line shares tracks with the four other mainline BART services.

The Blue Line is a Bay Area Rapid Transit (BART) line in the San Francisco Bay Area that runs between Dublin/Pleasanton station and Daly City station. It has 18 stations in Dublin, Pleasanton, Castro Valley, San Leandro, Oakland, San Francisco, and Daly City.

Millbrae station is an intermodal transit station serving Bay Area Rapid Transit (BART) and Caltrain, located in Millbrae, California. The station is the terminal station for BART on the San Francisco Peninsula, served by two lines: The Red Line before 9 pm and the Yellow Line during the early morning and evening. It is served by all Caltrain services. The station is also served by SamTrans bus service, Commute.org and Caltrain shuttle buses, and other shuttles.

12th Street/Oakland City Center station is an underground Bay Area Rapid Transit (BART) station located under Broadway between 12th Street and 14th Street in Downtown Oakland, adjacent to the Oakland City Center. The station has three underground levels, with tracks on the second and third levels. It is served by the Red Line, Orange Line, and Yellow Line, as well as by AC Transit buses on the surface.

19th Street Oakland station is an underground Bay Area Rapid Transit (BART) station located under Broadway between 17th Street and 20th Street in the Uptown District of Oakland, California. It is a timed transfer point between northbound trains to Richmond and to Antioch. The station has three underground levels, with tracks on the second and third levels. It is served by the Red Line, Orange Line, and Yellow Line, as well as by AC Transit buses on the surface at the Uptown Transit Center.

Concord station is a Bay Area Rapid Transit (BART) station in Concord, California. The station is located between the downtown business district to the west and residential neighborhoods to the east. Concord station has a single elevated island platform and is served by the Yellow Line.

North Concord/Martinez station is a Bay Area Rapid Transit (BART) station located in the Sun Terrace neighborhood of Concord, California, United States. The station serves the northern area of Concord and nearby Martinez. It is located near State Route 4. It is served by the Yellow Line.

Pittsburg/Bay Point station is a Bay Area Rapid Transit station in Pittsburg, California, United States, adjacent to the community of Bay Point. It serves northern and eastern Contra Costa County, as well as the Sacramento–San Joaquin River Delta area. Passengers transfer between the light and heavy rail portions of the Yellow Line at a dedicated transfer platform east of the main station.

Tri Delta Transit, formally the Eastern Contra Costa Transit Authority, is a joint powers agency of the governments of Pittsburg, Antioch, Oakley, Brentwood, and Contra Costa County that provides bus service for the eastern area of Contra Costa County, California, United States. Tri Delta Transit local buses connect to the BART rapid transit system at Antioch, Pittsburg Center, Pittsburg/Bay Point and Concord. Tri Delta Transit buses also connect with County Connection bus service. In 2023, the system had a ridership of 1,304,700, or about 4,700 per weekday as of the second quarter of 2024.

San Francisco International Airport station is a Bay Area Rapid Transit (BART) terminal station located adjacent to Garage G inside the San Francisco International Airport. The elevated station is a transfer point to the AirTrain people mover system at Garage G/BART station.

Throughout the history of Bay Area Rapid Transit, there have been plans to extend service to other areas.

Bay Area Rapid Transit, widely known by the acronym BART, is the main rail transportation system for the San Francisco Bay Area. It was envisioned as early as 1946 but the construction of the original system began in the 1960s.

Pittsburg Center station is a Bay Area Rapid Transit station on the Yellow Line. It is located at the Railroad Avenue overpass of Highway 4 in Pittsburg, California and serves the downtown area of about one mile (1.6 km) away via connecting buses provided by Tri Delta Transit. There is no reserved parking available at this station.

Antioch station is a Bay Area Rapid Transit (BART) station on the Yellow Line. It is located in the median of Highway 4 at Hillcrest Avenue in Antioch, California. Antioch station is the eastern terminus of the BART to Antioch (eBART) section of the line.

eBART is a hybrid rail branch line of the Bay Area Rapid Transit (BART) system in eastern Contra Costa County, California, United States. The line extends the Yellow Line beyond Pittsburg/Bay Point station to Antioch station.

Thomas E. "Tom" Margro is a mass transportation specialist best known for being the longest-serving General Manager for the San Francisco Bay Area Rapid Transit district. He also served as CEO of the Transportation Corridor Agencies from 2007 to 2012.

The SFO–Millbrae line was a Bay Area Rapid Transit (BART) shuttle line in the San Francisco Bay Area that ran between Millbrae station and San Francisco International Airport station (SFO). The line was colored purple on maps, and BART sometimes called it the Purple Line. The line was a shuttle service with no intermediate stops; it shared tracks with two of the five other mainline BART services. The service operated from June 2003 to February 2004 and from February 2019 to August 2021.

References

↑ "BART Sustainable Communities Operations Analysis" (PDF). San Francisco Bay Area Rapid Transit District. Retrieved May 28, 2018.
↑ "Mass transit signalling". Bombardier Transportation. Archived from the original on October 23, 2018. Retrieved October 4, 2021.
↑ "Bombardier Projects in Mass-transit signalling" (PDF). Archived (PDF) from the original on June 16, 2020. Retrieved October 4, 2021.
↑ "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.
↑ "BART opens Contra Costa Crossover" (Press release). San Francisco Bay Area Rapid Transit District. April 1, 2015.
↑ "BART schedule change aims to provide some crowding relief" (Press release). San Francisco Bay Area Rapid Transit District. September 10, 2015.
↑ "BART schedule change begins February 10, 2020" (Press release). San Francisco Bay Area Rapid Transit District. January 31, 2020.
↑ "Yellow line extra commute trains cancelled during low ridership" (Press release). San Francisco Bay Area Rapid Transit District. March 18, 2020.
↑ Gafni, Matthias (March 29, 2016). "BART nearing full restoration of service". Contra Costa Times. Retrieved March 31, 2016.
↑ 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
↑ "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/
↑ "BART-SFO Settlement Agreement and Release of Claims" (PDF). Metropolitan Transportation Commission. February 14, 2007. Archived from the original (PDF) on May 12, 2009.
↑ "Weekday Schedule as of February 20, 2020" (PDF). San Francisco Bay Area Rapid Transit District.
↑ "BART schedule change begins February 10, 2020" (Press release). San Francisco Bay Area Rapid Transit District. January 31, 2020.
↑ "BART schedule change begins March 22, 2021" (Press release). San Francisco Bay Area Rapid Transit District. March 16, 2021.
1 2 "BART returns to near-regular service starting 8/2/21" (Press release). San Francisco Bay Area Rapid Transit District. July 26, 2021.
↑ 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.
↑ Cabanatuan, Michael (February 7, 2004). "BART changing schedule so more go to SFO / Peninsula ridership below expectations, needs a boost". San Francisco Chronicle.
↑ Murphy, Dave (August 11, 2005). "PENINSULA / BART to airport to be cut / Weekend trains to be kept on Peninsula". San Francisco Chronicle.
↑ Gordon, Rachel (December 9, 2007). "BART to raise fares, increase train frequency starting Jan. 1". San Francisco Chronicle.
↑ "Off-peak service reductions began Monday, September 14th" (Press release). San Francisco Bay Area Rapid Transit District. September 15, 2009.
↑ "February 11 schedule change impacts weekdays and Sundays" (Press release). San Francisco Bay Area Rapid Transit District. January 15, 2019.
↑ "BART schedule change begins 2/14/22, extending service to midnight on Sundays | bart.gov". www.bart.gov. Retrieved February 15, 2022.
↑ Roth, Rob. "BART unveils diesel-powered eBART Antioch extension". KTVU. Archived from the original on October 11, 2016. Retrieved October 18, 2016.
↑ "East Contra Costa BART Extension (eBART)". Bay Area Rapid Transit (BART). April 3, 2013. Retrieved August 12, 2015.
↑ https://www.bart.gov/about/projects/ecc/faq , "What is eBART and BART to Antioch?"
↑ "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.
↑ "East Contra Costa BART Extension (eBART)". BART. Retrieved April 25, 2018.
↑ "Station List". BART.
↑ "BART SCOA Final Report June 2013" (PDF). BART.gov. BART. Retrieved May 28, 2017.
↑ see for instance https://www.bart.gov/sites/default/files/docs/F%26S_MAY%202018%20ENGLISH.pdf, p. 2

External links

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[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.

[history-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.

[aug2021-16] 1 2 "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.

[:0-23] "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.

[eBART-25] "East Contra Costa BART Extension (eBART)". Bay Area Rapid Transit (BART). April 3, 2013. Retrieved August 12, 2015.

[26] ttps://www.bart.gov/about/projects/ecc/faq , "What is eBART and BART to Antioch?"

[gazette-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.

[opening-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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