The Orange Line is a rapid transit line operated by the Massachusetts Bay Transportation Authority (MBTA) as part of the MBTA subway system. The line runs south on the surface from Oak Grove station in Malden, Massachusetts through Malden and Medford, paralleling the Haverhill Line, then crosses the Mystic River on a bridge into Somerville, then into Charlestown. It passes under the Charles River and runs through Downtown Boston in the Washington Street Tunnel. The line returns to the surface in the South End, then follows the Southwest Corridor southwest in a cut through Roxbury and Jamaica Plain to Forest Hills station.
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.
Central station is a Massachusetts Bay Transportation Authority (MBTA) rapid transit station in Cambridge, Massachusetts. It serves the Red Line and has a street-level terminal for the MBTA bus system. It is located at the intersection of Massachusetts Avenue with Western Avenue, Prospect Street, and Magazine Street at Central Square.
Haymarket station is an underground Massachusetts Bay Transportation Authority (MBTA) rapid transit station located at Haymarket Square in Boston, Massachusetts. It is a transfer station between the Green Line and Orange Line of the MBTA subway system, as well as a terminal for MBTA bus routes serving northern and northeastern suburbs. The two lines run parallel to each other through the station, with two side platforms for the Orange Line and a single island platform for the Green Line. The station is fully accessible.
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 16 Massachusetts Bay Transportation Authority (MBTA) bus routes, including two Silver Line bus rapid transit lines and 14 local MBTA bus routes. Like all MBTA bus stops, Nubian is fully accessible.
The E branch is a light rail line in Boston, Cambridge, Medford, and Somerville, Massachusetts, operating as part of the Massachusetts Bay Transportation Authority (MBTA) Green Line. The line runs in mixed traffic on South Huntington Avenue and Huntington Avenue between Heath Street and Brigham Circle, in the median of Huntington Avenue to Northeastern University, then into the Huntington Avenue subway. The line merges into the Boylston Street subway just west of Copley, running to North Station via the Tremont Street subway. It then follows the Lechmere Viaduct to Lechmere, then the Medford Branch to Medford/Tufts. As of February 2023, service operates on 8-minute headways at weekday peak hours and 8 to 9-minute headways at other times, using 13 to 17 trains.
As with many large cities, a large number of Boston-area streetcar lines once existed, and many continued operating into the 1950s. However, only a few now remain, namely the four branches of the Green Line and the Ashmont–Mattapan High-Speed Line, with only one running regular service on an undivided street.
The Massachusetts Bay Transportation Authority (MBTA) maintains a large public transit system in the Boston, Massachusetts area, and uses various methods to name and number their services for the convenience of users.
The Washington Street Elevated was an elevated segment of Boston's Massachusetts Bay Transportation Authority subway system, comprising the southern stretch of the Orange Line. It ran from Chinatown through the South End and Roxbury, ending in Forest Hills in Jamaica Plain, Boston.
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.
Chinatown station is a rapid transit station on the Massachusetts Bay Transportation Authority (MBTA) Orange Line, located at the edge of the Chinatown neighborhood in the downtown core of Boston, Massachusetts. The station has two offset side platforms, which run under Washington Street from Hayward Place to Lagrange Street. The three entrances are located at the intersection of Washington Street with Essex and Boylston streets. Like all Orange Line stations, both the subway platforms and all bus connections are fully accessible.
Roxbury Crossing station is a rapid transit station in Boston, Massachusetts. It serves the MBTA Orange Line, and is located on Tremont Street in the Mission Hill neighborhood. The current station opened in 1987 as part of the renovation and relocation of the southern Orange Line. Like all stations on the Orange Line, Roxbury Crossing is accessible.
The Massachusetts Bay Transportation Authority (MBTA) operates rapid transit, light rail, and bus rapid transit services in the Boston metropolitan area, collectively referred to as the rapid transit, subway, or the T system.
Jackson Square station is a Massachusetts Bay Transportation Authority (MBTA) Orange Line rapid transit station located on Centre Street near Columbus Avenue in the Jamaica Plain neighborhood of Boston, Massachusetts. The station opened in 1987 as part of the Southwest Corridor project. It is served by MBTA bus routes 14, 22, 29, 41, and 44, which operate into an off-street busway located adjacent to the station.
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 local MBTA bus route 8. Like all Silver Line stops, Worcester Square is accessible.
South Station is a transfer station on the MBTA rapid transit Red Line and bus rapid transit Silver Line, located at Summer Street and Atlantic Avenue in downtown Boston, Massachusetts. It is a part of the South Station complex, the second busiest transportation center in New England. Eight MBTA Commuter Rail and three Amtrak intercity rail services terminate at South Station; many of those passengers then transfer to the rapid transit lines to reach other destinations in the city. With 24,639 daily boardings in 2019, South Station is the busiest station on the MBTA rapid transit system.
Dover station was an elevated rapid transit station located above Washington Street at Dover Street in the South End neighborhood of Boston, Massachusetts. It served the Washington Street Elevated, part of the MBTA's Orange Line, from 1901 until 1987.
Egleston was a rapid transit station in Boston, Massachusetts. It served the Washington Street Elevated, part of the MBTA's Orange Line. It was located over Egleston Square at the intersection of Washington Street and Columbus Avenue in the Roxbury neighborhood. The station opened in November 1909, and was closed in April 1987 when the Orange Line was rerouted to the west along the Southwest Corridor.
MBTA bus: 1, 8 
