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Caltrain

Caltrain
Cal in black letters, with train inscribed within a red circle, all letters italicized
A red and white electric train at a train station
A train at Millbrae station in 2024
Overview
OwnerPeninsula Corridor Joint Powers Board
Area servedSanta Clara Valley
San Francisco Peninsula
Transit typeCommuter rail
Number of lines1 line[i]
5 services[ii]
Number of stations31 (list)
Daily ridership39,985 per Weekday (August 2025)
25,837 per Saturday (August 2025)
20,821 per Sunday (August 2025)[1]
Annual ridership7,201,600 (2024)[2]
HeadquartersSan Carlos, California
Websitecaltrain.com
Operation
Began operation1985 (as Caltrain)
1863 (as Peninsula Commute)
Operator(s)Southern Pacific (1870–1992)
Amtrak (1992–2012)
TransitAmerica Services (2012–present)
Reporting marksJPBX
Infrastructure manager(s)Union Pacific (Tamien–Gilroy)
CharacterCommuter railroad with level crossings; limited freight service
Number of vehicles29 locomotives and 134 passenger cars (in revenue service)[3]
Train length7 EMU Passenger Cars
Technical
System length77.2 mi (124.2 km)
No. of tracks2+[4]
Track gauge4 ft 8+12 in (1,435 mm) standard gauge
ElectrificationOverhead line25 kV 60 Hz AC (San Francisco to Tamien)[5]
Top speed79 mph (127 km/h)
System map
Map Caltrain highlighted in red
The Portal
planned
enlarge…
0.0 mi
0 km
San Francisco enlarge…
N Judah T Third Street
1.7 mi
2.7 km
22nd Street
under I-280 (1961).svg I-280
Oakdale
proposed
3.9 mi
6.3 km
Paul Avenue
closed
T Third Street (Muni Metro)
5.0 mi
8 km
Bayshore
8.4 mi
13.5 km
Butler Road
closed
9.1 mi
14.6 km
South San Francisco
11.6 mi
18.7 km
San Bruno
Fare zone 1
Fare zone 2
13.5 mi
21.7 km
Millbrae enlarge…
Bay Area Rapid Transit San Francisco International Airport
15.0 mi
24.1 km
Broadway
weekends only
16.1 mi
25.9 km
Burlingame
17.8 mi
28.6 km
San Mateo
18.9 mi
30.4 km
Hayward Park
19.8 mi
31.9 km
Bay Meadows
closed
20.1 mi
32.3 km
Hillsdale
21.7 mi
34.9 km
Belmont
23.0 mi
37 km
San Carlos
25.3 mi
40.7 km
Redwood City
Fare zone 2
Fare zone 3
27.6 mi
44.4 km
Atherton
closed
28.7 mi
46.2 km
Menlo Park
29.9 mi
48.1 km
Palo Alto
30.6 mi
49.2 km
Stanford
game days only
31.6 mi
50.9 km
California Avenue
33.9 mi
54.6 km
San Antonio
34.7 mi
55.8 km
Castro
closed
36.1 mi
58.1 km
Mountain View
Orange Line (VTA)
38.6 mi
62.1 km
Sunnyvale
Fare zone 3
Fare zone 4
40.6 mi
65.3 km
Lawrence
44.1 mi
71 km
Santa Clara
AmtrakAltamont Corridor Express San Jose International Airport (via List of VTA bus routes#60)
45.5 mi
73.2 km
College Park
weekday limited
CEMOF
46.7 mi
75.2 km
San Jose Diridon enlarge…
AmtrakAltamont Corridor Express Green Line (VTA)
48.9 mi
78.7 km
Tamien
Blue Line (VTA)
Fare zone 4
Fare zone 5
weekday
commutes
52.2 mi
84 km
Capitol
55.5 mi
89.3 km
Blossom Hill
Fare zone 5
Fare zone 6
67.3 mi
108.3 km
Morgan Hill
71.0 mi
114.3 km
San Martin
77.2 mi
124.2 km
Gilroy
Castroville
planned
Salinas
under construction
Amtrak

Handicapped/disabled access All stops are accessible except
22nd Street, College Park, and Stanford

Caltrain (reporting mark JPBX) is a commuter rail line in California, serving the San Francisco Peninsula and Santa Clara Valley (Silicon Valley). The southern terminus is in San Jose at the Tamien station with weekday rush hour service running as far as Gilroy. The northern terminus of the line is in San Francisco at 4th and King Street. Caltrain has express, limited, and local services. There are 28 regular stops, one limited-service weekday-only stop (College Park), one weekend-only stop (Broadway), and one stop that is only served on football game days (Stanford). While average weekday ridership in 2019 exceeded 63,000, impacts of the COVID-19 pandemic have been significant: in August 2025, Caltrain had an average weekday ridership of 39,985 passengers.[6]

Caltrain is governed by the Peninsula Corridor Joint Powers Board (PCJPB) which consists of agencies from the three counties served by Caltrain: Santa Clara, San Francisco, and San Mateo. Each member agency has three representatives on a nine-member Board of Directors. The member agencies are the Santa Clara Valley Transportation Authority, the San Francisco Municipal Transportation Agency, and the San Mateo County Transit District (SamTrans).

Historically served by diesel locomotives, Caltrain has electrified 51 miles (82 km) of its route between 4th and King and Tamien and has transitioned to electric service, with diesel trains remaining in service between San Jose and Gilroy.[7]

History

Southern Pacific service

A Southern Pacific locomotive pulls a Peninsula Commute train past Bayshore in April 1985.

The original commuter railroad was built in 1863 under the authority of the San Francisco & San Jose Railroad;[8] it was purchased by Southern Pacific (SP) in 1870.

SP double-tracked the line in 1904 and rerouted it via the Bayshore Cutoff. After 1945, ridership declined with the rise in automobile use; in 1977 SP petitioned the state Public Utilities Commission to discontinue the commuter operation because of ongoing losses. California legislators wrote Assembly Bill 1853 in 1977 to allow local transit districts along the line to make bulk purchases of tickets for resale at a loss, subsidizing commuters reliant on the Peninsula Commute until 1980; more importantly, the bill also authorized Caltrans to begin negotiating with SP to operate the passenger rail service and acquire the right-of-way between San Bruno and Daly City.[9]

To preserve the commuter service, in 1980 Caltrans contracted with SP and began to subsidize the Peninsula Commute. Caltrans purchased new locomotives and rolling stock, replacing SP equipment in 1985. Caltrans also upgraded stations, added shuttle buses to nearby employers, and dubbed the operation CalTrain.

Joint Powers Board

A Caltrain car manufactured by Nippon Sharyo

The Peninsula Corridor Joint Powers Board was formed in 1987 to manage the line. Subsequently, San Mateo and Santa Clara Counties commissioned Earth Metrics, Inc., to prepare an Environmental Impact Report on right-of-way acquisition and expansion of operations. With state and local funding, the PCJPB bought the railroad right of way between San Francisco and San Jose from SP in 1991. As SamTrans advanced most of the local fund used to purchased the right-of-way, it was also agreed that SamTrans would serve as the managing agency until San Francisco and Santa Clara Counties could repay their portions. The following year, PCJPB took responsibility for CalTrain operations and selected Amtrak as the contract operator. PCJPB extended the CalTrain service from San Jose to Gilroy, connecting to VTA light rail at Tamien station in San Jose.

In July 1995, CalTrain became accessible to passengers with wheelchairs, excepting 22nd Street station, which has no step-free access. Five months later, CalTrain increased the bicycle limit to 24 per train, making the service attractive to commuters in bicycle-friendly cities such as San Francisco and Palo Alto.

In July 1997, the current logo was adopted, and the official name became Caltrain, dropping the capitalized "T".[10]

In 1998, the San Francisco Municipal Railway extended the N Judah line from Market Street to the San Francisco Caltrain Station at 4th and King streets, providing a direct connection between Caltrain and the Muni Metro system. A year later, VTA extended its light rail service from north Santa Clara to the Mountain View station. Starting in 1999, Caltrain reconstructed several stations and upgraded tracks and level crossings under the "Ponderosa Project".[11]

In June 2003, a passenger connection for the Bay Area Rapid Transit (BART) and Caltrain systems opened at Millbrae station just south of the San Francisco International Airport.[12]

In 2008, Caltrain reached an all-time high of 98 trains each weekday.

Caltrain announced on August 19, 2011, a staff recommendation to sign a five-year, $62.5 million contract with TransitAmerica Services, after taking proposals from three other firms, including Amtrak California, which had provided operating employees since 1992.[13] The new operating contract was approved by the full Joint Powers Board at its scheduled September 1 meeting. TransitAmerica Services took over not only the conductor and engineer jobs on the trains, but also dispatching and maintenance of equipment, track, and right-of-way from Amtrak. On May 26, 2012, TransitAmerica took over full operations.[14]

Baby Bullet service

Baby Bullet service was originally provided by MPI MP36PH-3C locomotives; they have since been replaced by new electric train sets, but still see service on the South County Connector.

In June 2004, Caltrain finished its two-year CTX (Caltrain Express) project for a new express service called the Baby Bullet. The project entailed new bypass tracks in Brisbane and Sunnyvale as well as a new centralized traffic control system. The Baby Bullet trains reduced travel time by stopping at only four or five stations between San Francisco and San Jose Diridon station; the express trains could overtake local trains at the two locations (near Bayshore and Lawrence stations) where passing loops were added. Travel time for about 46.75 miles between San Francisco and San Jose is 57 minutes (four stops), 59 minutes (five stops) or 61 minutes (six stops), compared to 1 hour 30 minutes for local trains. The Baby Bullets have the same top speed of 79 mph (127 km/h) as other trains, but fewer stops save time. The CTX project included the purchase of new Bombardier BiLevel Coaches along with MPI MP36PH-3C locomotives.[15] The Baby Bullets proved popular, but many riders had longer commutes on non-bullet trains, some of which would wait for Baby Bullet trains to pass.[16]

Budget crises

In May 2005 Caltrain started a series of fare increases and schedule changes in response to a projected budget shortfall. The frequency of the popular Baby Bullet express trains was increased; two express trains were added in May and another ten were added in August. New Baby Bullet stops, Pattern B stops, were introduced. Another increase of $0.25 in basic fare came in January 2006.

On April 2, 2010, Caltrain announced the need to cut its services by around 50%, as it was required to cut $30 million from its $97 million budget because all three authorities that fund the line were facing financial problems themselves and $10 million a year in previous state funding had been cut. Revenues for both local and state agencies had been steadily declining, as well as ticket revenues at Caltrain itself, and had left all "beyond broke."[17]

On January 1, 2011, Caltrain cut four midday trains but upgraded four weekend trains to Baby Bullet service as a pilot program. This reduced its schedule from 90 to 86 trains each weekday. At the same time, it raised fares $0.25 and continued to contemplate cutting weekday service to 48 trains during commute hours only.[18] By April 2011, Caltrain's board had approved a budget with fare increases to take effect on July 1, 2011, and no service cuts. The budget gap would be closed with another $0.25 fare increase, a $1 parking fee increase to $4, and additional money from other transit agencies and the MTC.[19][20]

On February 17, 2017, California State Senator Jerry Hill introduced SB 797, which would permit the Peninsula Corridor Joint Powers Board to submit a regional measure for sales tax increase of 18th of one cent to the voters in the three counties served by Caltrain.[21] The regional measure would require a two-thirds majority (aggregated among the three counties) to pass, and would provide Caltrain with a dedicated revenue source estimated at $100 million per year.[22] For comparison, in fiscal year 2016 (ending June 30, 2016), the operating expenses for Caltrain were $118 million, and farebox revenues were $87 million,[23] leaving approximately $31 million in expenses to be funded by the PCJPB through its member agencies and county government contributions. SB 797 passed the California State Senate in May, and the State Assembly in September,[24] and Governor Brown signed the bill into law in October.[25]

Caltrain parallels and provides an