The Silver Line is a system of bus routes in Boston and Chelsea, Massachusetts, operated by the Massachusetts Bay Transportation Authority (MBTA). It is operated as part of the MBTA bus system, but branded as bus rapid transit (BRT) as part of the MBTA subway system. Six routes are operated as part of two disconnected corridors. As of 2019, weekday ridership on the Silver Line was 39,000.
Airport station is a rapid transit station in Boston, Massachusetts. It serves the MBTA Blue Line and the SL3 branch of the Silver Line. It is located in East Boston under the interchange between Interstate 90 and Massachusetts Route 1A. The station provides one of two mass transit connections to the nearby Logan International Airport, as well as serving local residents in East Boston. Shuttle buses connect the station with the airport terminals and other facilities.
The Massachusetts Bay Transportation Authority (MBTA) operates 170 bus routes in the Greater Boston area. The MBTA has a policy objective to provide transit service within walking distance for all residents living in areas with population densities greater than 5,000 inhabitants per square mile (1,900/km2) within the MBTA's service district. Much of this service is provided by bus. In 2021, the system had a ridership of 64,728,000, or about 267,100 per weekday as of the second quarter of 2022.
Ruggles station is an intermodal transfer station in Boston, Massachusetts. It serves Massachusetts Bay Transportation Authority (MBTA) rapid transit, bus, and commuter rail services and is located at the intersection of Ruggles and Tremont streets, where the Roxbury, Fenway–Kenmore, and Mission Hill neighborhoods meet. It is surrounded by the campus of Northeastern University. Ruggles is a station stop for the Orange Line subway, as well as the Providence/Stoughton Line, Franklin Line, and Needham Line of the MBTA Commuter Rail system. Thirteen MBTA bus routes stop at Ruggles.
Key bus routes of the Massachusetts Bay Transportation Authority (MBTA) system are 15 routes that have high ridership and higher frequency standards than other bus lines, according to the 2004 MBTA Service Policy. Together, they account for roughly 40% of the MBTA's total bus ridership. These key bus routes ensure basic geographic coverage with frequent service in the densest areas of Boston, and connect to other MBTA services to give access to other areas throughout the region.
Nubian station is a ground-level bus station located in Nubian Square in the Roxbury neighborhood of Boston, Massachusetts, United States. It is a transfer point between 18 Massachusetts Bay Transportation Authority (MBTA) bus routes, including two Silver Line bus rapid transit lines and 16 local MBTA bus routes. Like all MBTA bus stops, Nubian is fully accessible.
The Urban Ring was a proposed project of the Massachusetts Bay Transportation Authority and the Massachusetts Department of Transportation, to develop new public transportation routes that would provide improved circumferential connections among many existing transit lines that project radially from downtown Boston. The Urban Ring Corridor is located roughly one to two miles from downtown Boston, passing through the Massachusetts cities of Boston, Chelsea, Everett, Medford, Somerville, Cambridge, and Brookline. The project was expected to convert 41,500 car trips to transit trips daily.
World Trade Center is an underground bus rapid transit station on the MBTA's Silver Line, located south of Congress Street on the South Boston Waterfront. The station is situated between the World Trade Center and the Boston Convention and Exhibition Center; it also serves Commonwealth Pier and nearby residential and commercial development. Like all Silver Line stations, World Trade Center station is accessible.
Tufts Medical Center station is an underground Massachusetts Bay Transportation Authority (MBTA) rapid transit station in Boston, Massachusetts. It serves the MBTA subway Orange Line, as well as two Silver Line bus rapid transit routes on the surface. It is named for the Tufts Medical Center and is built under a wing of the facility that crosses over Washington Street in downtown Boston between Kneeland Street in Chinatown and the Massachusetts Turnpike. The accessible station has two side platforms for the Orange Line, while Silver Line buses stop along the sidewalks on the surface next to the station entrance on Washington Street. A secondary entrance is available on Tremont Street one block to the west.
Courthouse station is an underground bus rapid transit station on the MBTA's Silver Line, located under Seaport Boulevard at Thomson Street on the South Boston Waterfront. It is named for the John Joseph Moakley United States Courthouse which is one block to the north on Fan Pier. The station also serves the Fort Point neighborhood, the Institute of Contemporary Art, Boston, and nearby residential and commercial development. Like all Silver Line stations, Courthouse station is accessible.
Bellingham Square station is a Massachusetts Bay Transportation Authority (MBTA) Silver Line bus rapid transit (BRT) station located near Bellingham Square slightly north of downtown Chelsea, Massachusetts. The station has two accessible side platforms for buses on the SL3 route. The Boston and Maine Railroad and predecessor Eastern Railroad served Chelsea station at the same location from the mid-1850s to 1958. The MBTA opened Chelsea station on the Newburyport/Rockport Line in 1985. Prior to its 2010 cancellation, the Urban Ring Project planned for a circumferential BRT line with a stop at Mystic Mall. Planning continued for the Chelsea segment; a Silver Line extension to Mystic Mall was announced in 2013. Construction began in 2015, and SL3 service to the renamed Bellingham Square station began on April 21, 2018. Commuter rail service moved to the newly constructed Chelsea station on November 15, 2021.
Lenox Street is a street-level bus station on the Washington Street branch of the MBTA Silver Line bus rapid transit service. It is located on Washington Street at Lenox Street in the Roxbury neighborhood of Boston, Massachusetts. The stop is served by the SL4 and SL5 Silver Line routes as well as several local MBTA bus routes. Like all Silver Line stops, Lenox Street is accessible.
Worcester Square station is a street-level bus station on the Washington Street branch of the MBTA Silver Line bus rapid transit service. It is located on Washington Street at Worcester Square in the South End neighborhood of Boston, Massachusetts near the Boston Medical Center. The stop is served by the SL4 and SL5 Silver Line routes as well as several local MBTA bus routes. Like all Silver Line stops, Worcester Square is accessible.
Newton Street is a street-level bus station on the Washington Street branch of the MBTA Silver Line bus rapid transit service. It is located on Washington Street just south of East Newton Street and West Newton Street in the South End neighborhood of Boston, Massachusetts near the Boston University Medical Campus. The stop is served by the SL4 and SL5 Silver Line routes as well as several local MBTA bus routes. Like all Silver Line stops, Newton Street is accessible.
Herald Street is a street-level bus station on the Washington Street branch of the MBTA MBTA Silver Line bus rapid transit service. It is located on Washington Street just south of Herald Street in the South End neighborhood of Boston, Massachusetts. In late 2017, the inbound stop was moved half a block north due to adjacent construction. The stop is served by the SL4 and SL5 Silver Line routes as well as several local MBTA bus routes. Like all Silver Line stops, Herald Street is accessible.
Boston University Central station is a surface-level light rail station on the MBTA Green Line B branch, located the center median of Commonwealth Avenue west of St. Marys Street in Boston, Massachusetts, surrounded by the Boston University campus. It consists of two side platforms, which serve the B branch's two tracks.
Newmarket is an MBTA Commuter Rail station in Boston, Massachusetts. It serves the Fairmount Line and has limited service on the Franklin Line. It is located off Massachusetts Avenue at Newmarket Square in the Dorchester neighborhood. The station has two 800-foot high-level platforms and sloping walkways connecting it to Massachusetts Avenue. Originally planned to be in service in 2011, it opened on July 1, 2013, along with Four Corners/Geneva station.
Chelsea station is a Massachusetts Bay Transportation Authority (MBTA) intermodal transit station located adjacent to the Mystic Mall in Chelsea, Massachusetts. It is the terminus of the SL3 route of the MBTA Silver Line bus rapid transit (BRT) network, and is served by the Newburyport/Rockport Line of the MBTA Commuter Rail. The accessible station has a loop with two small platforms for the Silver Line, and two full-length side platforms for commuter rail trains.
Box District station is a bus rapid transit station on the Massachusetts Bay Transportation Authority (MBTA) Silver Line system, located in Chelsea, Massachusetts. The accessible station has two side platforms under an arched canopy, with street access from Broadway and from Highland Street. Plans for the Urban Ring Project called for a busway along the former Grand Junction Branch, but without a station in the Box District neighborhood. After the Urban Ring was cancelled in 2010, new plans for a busway with a Box District stop were announced in 2013. Construction began in 2015, with route SL3 service beginning on April 21, 2018.
Eastern Avenue station is a bus rapid transit station on the Massachusetts Bay Transportation Authority (MBTA) Silver Line system, located in Chelsea, Massachusetts near Chelsea Creek. The accessible station has two side platforms, with street access from Eastern Avenue and Central Avenue. Plans for the Urban Ring Project called for a busway along the former Grand Junction Branch, but with a station further north at Griffin Way. After the Urban Ring was cancelled in 2010, new plans for a busway with an Eastern Avenue stop were announced in 2013. Construction began in 2015, with route SL3 service beginning on April 21, 2018.
MBTA bus: CT3, 1, 8, 19, 47, 170, 171, 191 
