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| 4th and King/Caltrain station | |
|---|---|
| Name | 4th and King/Caltrain |
| Address | 700 4th Street |
| Borough | San Francisco, California |
| Country | United States |
| Owned | Peninsula Corridor Joint Powers Board |
| Line | Peninsula Corridor |
| Platforms | 3 island platforms |
| Connections | Muni Metro, Muni buses, Bay Area Rapid Transit (BART) via connections |
| Parking | limited |
| Bicycle | racks, lockers |
| Opened | 1975 (Caltrain) |
| Rebuilt | 1999–2003 (transit center) |
4th and King/Caltrain station 4th and King/Caltrain station is the primary commuter rail terminal in San Francisco serving the Peninsula Corridor. The station functions as the northern terminus for regional rail, intermodal connections, and commuter flows between San Francisco, San Mateo County, and Santa Clara County. It operates within a network linking major Bay Area institutions, financial centers, and transportation hubs.
The station forms an intermodal node connecting the Peninsula Corridor with local and regional services including San Francisco Municipal Railway Muni light rail, SFMTA buses, regional operators such as SamTrans, VTA shuttles, and long-distance rail connections via Amtrak Thruway buses. It anchors travel to districts including the South of Market, Financial District, Embarcadero, Ferry Building corridor, and activity centers such as Oracle Park and Mission Bay. The station is operated by the Peninsula Corridor Joint Powers Board and integrated with regional planning by agencies including the Association of Bay Area Governments and Metropolitan Transportation Commission.
The site has roots in the 19th-century expansion of Southern Pacific Transportation Company and reflects the evolution of Caltrain service from intercity to commuter rail. The modern terminal emerged as part of late 20th-century transportation initiatives involving the California Department of Transportation and local government partners including the City and County of San Francisco. Redevelopment tied to projects such as Yerba Buena Island area plans and Mission Bay growth prompted coordination with private developers, labor groups like the International Longshore and Warehouse Union, and agencies including the U.S. Department of Transportation. Station improvements paralleled regional transit milestones such as proposals for BART to SFO, discussions around California High-Speed Rail, and implementation of electrification funded through collaborations with entities like Caltrans District 4 and federal programs under administrations of presidents including Barack Obama and Donald Trump.
The station features multiple boarding platforms and trackwork compatible with diesel and electric traction, configured for efficient turnaround and layover. Facilities include passenger amenities influenced by standards from the Americans with Disabilities Act of 1990 and station design practices used by agencies such as United States Access Board. The site hosts ticketing areas, waiting rooms, bicycle facilities that follow guidance from U.S. DOT programs, and security coordination with the San Francisco Police Department and California Highway Patrol. Nearby governance and property stakeholders include Port of San Francisco and San Francisco Municipal Transportation Agency.
Caltrain runs commuter services linking the terminal to stations such as Millbrae, San Mateo, Burlingame, San Carlos, Redwood City, Palo Alto, Mountain View, and San Jose Diridon. Operational coordination involves rolling stock procurement and maintenance discussions with manufacturers like Stadler Rail and suppliers in the context of electrification projects. Scheduling integrates with regional timetables from Amtrak California and shuttle partnerships with institutions such as Stanford University and UCSF for event routing to venues like Levi's Stadium and SAP Center at San Jose.
Intermodal transfers connect riders to Muni Metro lines, Muni bus routes, and regional bus operators such as AC Transit via transbay links, and Greyhound Lines for longer-distance travel. Connections to San Francisco International Airport are provided through coordinated services including shuttle links that integrate with BART. Pedestrian and cycling access align with city initiatives tied to agencies like the San Francisco County Transportation Authority and neighborhood planning groups in South Beach. The station also functions as a node for corporate shuttles serving employers including Salesforce, Meta Platforms, Google, and Apple Inc..
Ridership trends reflect commuter patterns influenced by employment centers at the Transamerica Pyramid, Salesforce Tower, and research campuses in South Bay. Data analyses by the Metropolitan Transportation Commission and Caltrain Modernization Program indicate passenger flows that affect local development, transit-oriented development projects near Mission Bay, and economic activity at venues such as Oracle Park and Chase Center. The station's presence shapes real estate projects with stakeholders like Tishman Speyer, Skanska, and regional planners from San Francisco Planning Department.
Planned initiatives include full electrification under the Caltrain Electrification Project, service coordination with the proposed California High-Speed Rail Authority alignments, and potential integration with Downtown Rail Extension concepts. Funding and governance involve partnerships with Federal Transit Administration, California Transportation Commission, and private developers. Discussions continue about capacity enhancements, grade-separation projects similar to those undertaken by Los Angeles County Metropolitan Transportation Authority, and transit connectivity improvements modeled after systems like New York City Subway, Chicago 'L', and London Underground.
Category:Caltrain stations Category:Transportation in San Francisco Category:Railway stations in California