101 (MBTA bus)

Geographic map of MBTA bus service

The Massachusetts Bay Transportation Authority bus division operates bus routes in the Boston, Massachusetts metropolitan area. All routes connect to MBTA subway, MBTA Commuter Rail, and/or other MBTA bus services. Many routes are descendants of the streetcar routes of the Boston Elevated Railway, or of suburban companies including the Eastern Massachusetts Street Railway, Middlesex and Boston Street Railway, and Newton and Boston Street Railway.

A number of routes have been temporarily suspended or placed on modified routings during the COVID-19 pandemic. While overall service levels were restored to pre-COVID levels in 2021, some routes remain modified or suspended.


dagger Routes using Electric trolleybuses (trackless trolleys) or dual-mode buses
^ Routes using 60-foot (18 m) articulated buses
N Routes not operating during COVID-19 pandemic
M Routes with modified routing during COVID-19 pandemic

Silver Line[]

A Silver Line bus leaves the Waterfront Tunnel on the SL1 route
A bus on the SL4 route at Newton Street station in 2019

The Silver Line is a bus rapid transit system marketed as rapid transit. It is divided into two branches: Waterfront service (SL1, SL2, SL3, and the rush-hour Shuttle) that runs through the South Boston Transitway tunnel, and Washington Street service (SL4 and SL5) that runs on the surface via Washington Street. The Waterfront service costs the same as a subway fare, while the Washington Street service costs a regular bus fare.

The SL5 route was created in 2002 as a replacement for the Washington Street Elevated. The Shuttle route began operations in 2004, followed by the SL2 and SL3 (former) in 2004 and SL1 in 2005 when dual-mode buses became available. The SL4 was introduced in 2009 as a replacement for the canceled Phase III tunnel. A new SL3 route to Chelsea opened in 2018.[1]

Route Note Description MBTA link
SL1 dagger ^ Logan AirportSouth Station Link
SL2 dagger ^ Design Center–South Station Link
SL3 dagger ^ Chelsea stationSouth Station Link
Shuttle dagger ^ Silver Line WaySouth Station
SL4 ^ Nubian stationSouth Station at Essex Street Link
SL5 ^ Nubian station–Downtown Crossing at Temple Place Link


A CT3 bus on Longwood Avenue in 2018

The crosstown (CT) buses provide limited-stop service on two routes that connect major subway and bus transfer points. The routes were created by the MBTA in 1994.[1]

Route Description MBTA link
CT2 Sullivan Square stationRuggles station Link
CT3 Beth Israel Deaconess HospitalAndrew station Link


A #1 bus at MIT, Cambridge
#7, #11, and SL4 buses at South Station
A #39 bus on Centre Street in Jamaica Plain
A bus on the #43 route, one of the last to be converted from streetcar to bus, stands alongside an SL5 bus on Tremont Street
A #59 bus stopped in Needham Center
A Boston Elevated Railway bus on either the #60 or since-discontinued #58 route arrives at Kenmore Square in the 1940s
A #70 bus at Central Square, Waltham in 2016
A #77A trolleybus on Massachusetts Avenue in 1967
A #77 bus on Mount Auburn Street in 2019
A #91 bus on Washington Street
A #101 bus on Main Street in Somerville
A #112 bus at Mystic Mall in Chelsea with an SL3 bus approaching at rear

These routes provide almost all local service in the core of the metropolitan area; most were originally Boston Elevated Railway streetcar routes. They were originally numbered roughly clockwise from southeast to northeast, with 4 the furthest south in South Boston and 121 the furthest north (roughly) in East Boston. The BERy folded into the Metropolitan Transit Authority in 1947, and the M.T.A. in turn was reorganized as the MBTA in 1964. Despite some changes, including minor routes being merged into trunk routes, the core service network has remained roughly intact since the BERy eta. Several new routes, including the 1, 5, and 47, have been added during the M.T.A. and MBTA eras.[1]

Seven routes – the 52, 59, 62, 67, 70, 70A, and 76 – serve more distant western suburbs, such as Belmont, Lexington, and Needham; most were acquired from the Middlesex and Boston Street Railway in 1972, and subsequently renumbered using previously discontinued designations.[1]

Fifteen of these routes (those with the highest ridership in the system) are designated as key bus routes; they supplement the subway system to provide frequent service to the densest areas of the city. Key bus routes typically operate at higher frequencies than their undesignated cousins, and in March 2014 their hours of service were extended until 2:30AM on Friday and Saturday nights along with the rapid transit system.[2] In mid-2015, late-night service on some key bus routes was cut back, while other routes were dropped from late-night service. Key bus routes are designated on this list with an *.

Route Note Description MBTA link
1 * Harvard SquareNubian station Link
4 North Station–Tide Street Link
7 City PointOtis Street & Summer Street Link
8 Harbor PointKenmore station Link
9 City Point–Copley station Link
10 City Point–Copley Square Link
11 City Point–Bedford Street & Chauncy Street Link
14 Roslindale SquareHeath Street Link
15 * Fields Corner station or Kane Square–Ruggles station Link
16 Forest Hills stationAndrew station or Harbor Point Link
17 Fields Corner station–Andrew station Link
18 Ashmont station–Andrew station Link
19 Fields Corner station–Kenmore or Ruggles station Link
21 Ashmont station–Forest Hills station Link
22 * Ashmont station–Ruggles station via Talbot Ave Link
23 Ashmont station–Ruggles station via Washington Street Link
24 M Wakefield Avenue & Truman Parkway–Mattapan station Link
26 Ashmont station–Norfolk Street Loop Link
27 N Mattapan station–Ashmont station Link
28 * ^ Mattapan station–Ruggles station Link
29 Mattapan station–Jackson Square station Link
30 Mattapan station–Forest Hills station via Cummins Highway and Roslindale Square Link
31 Mattapan station–Forest Hills station via Morton Street Link
32 * Wolcott or Cleary Square–Forest Hills station Link
33 River Street & Milton Street–Mattapan station Link
34 Dedham Mall or Dedham Line–Forest Hills station Link
34E Walpole Center–Forest Hills station Link
35 Dedham Mall or Stimson Street–Forest Hills station Link
36 Millennium Park or VA Hospital–Forest Hills station Link
37 Baker Street & Vermont Street–Forest Hills station Link
38 Wren Street–Forest Hills station Link
39 * ^ Forest Hills station–Back Bay station Link
40 Georgetowne–Forest Hills station Link
41 Centre Street & Eliot StreetJFK/UMass station Link
42 Forest Hills station–Nubian station Link
43 Ruggles station–Park Street station Link
44 Jackson Square station–Ruggles station Link
45 Franklin Park–Ruggles station Link
47 Central Square, CambridgeBroadway station Link
50 Cleary Square–Forest Hills station Link
51 Reservoir station–Forest Hills station Link
52 Dedham Mall–Watertown Yard Link
55 M Jersey Street & Queensberry Street–Park Street station Link
57 * Watertown Yard–Kenmore station Link
57A N Oak Square–Kenmore station Link
59 Needham JunctionWatertown Square Link
60 Chestnut Hill–Kenmore station Link
61 North Waltham–Waltham Center Link
62 M Bedford VA Hospital–Alewife station Link
64 Oak Square–University Park or Kendall/MIT station Link
65 Brighton–Kenmore station Link
66 * Harvard Square–Nubian station via Allston Link
67 Turkey Hill–Alewife station Link
68 Harvard Square–Kendall/MIT station Link
69 Harvard Square–Lechmere station Link
70 Market Place Drive or Waltham Center–University Park Link
71 * dagger Watertown Square–Harvard station Link
72 N dagger Aberdeen Avenue–Harvard station Link
73 * dagger Waverley Square–Harvard Station Link
74 Belmont Center–Harvard via Concord Avenue Link
75 Belmont Center–Harvard via Huron Avenue Link
76 M Lincoln Lab–Alewife station Link
77 * Arlington Heights–Harvard station Link
78 Arlmont Village–Harvard station Link
79 N Arlington Heights–Alewife station Link
80 Arlington Center–Lechmere station Link
83 Rindge Avenue–Central Square, Cambridge Link
84 N Arlmont Village–Alewife station Link
85 Spring Hill–Kendall/MIT station Link
86 Sullivan Square station–Reservoir station Link
87 Clarendon Hill or Arlington Center–Lechmere station Link
88 Clarendon Hill–Lechmere station Link
89 Clarendon Hill or Davis station–Sullivan Square station Link
90 Davis station–Assembly Row Link
91 Sullivan Square station–Central Square, Cambridge Link
92 Sullivan Square station–Downtown via Main Street Link
93 Sullivan Square station–Downtown via Bunker Hill Street Link
94 Medford Square–Davis station Link
95 West Medford or Arlington Center–Sullivan Square station Link
96 Medford Square–Harvard station Link
97 Malden Center stationWellington station Link
99 Woodland Road–Wellington station Link
100 Elm Street–Wellington station Link
101 Malden Center station–Sullivan Square station via Winter Hill Link
104 Malden Center station–Sullivan Square station via Ferry Street Link
105 Malden Center station–Sullivan Square station via Newland Street Housing Link
106 Lebanon Loop–Wellington station Link
108 Linden Square–Wellington station Link
109 Linden Square–Sullivan Square station Link
110 Wonderland station–Wellington station Link
111 * Woodlawn–Haymarket station Link
112 Wellington station–Wood Island station Link
114 Market BasketMaverick station Link
116 * Wonderland station–Maverick station via Revere Street Link
117 * Wonderland station–Maverick station via Beach Street Link
119 Northgate Shopping Center–Beachmont station Link
120 Orient Heights station–Jeffries Point Link
121 Wood Island station–Maverick station Link


A #131 bus passing Melrose Highlands station

Numbers from 131 to 137 operate in the Melrose area; their routings are based on routes operated as part of the former Eastern Massachusetts Street Railway, which was folded into the MBTA system in 1968. The 136 and 137 were briefly operated as far as Lowell and Lawrence, their original Eastern Mass terminals, while under MBTA control. The 132 was a Service Bus Lines route which was not operated by the MBTA until 1975.[1]

Route Note Description MBTA link
131 Melrose HighlandsOak Grove or Malden Center station Link
132 Redstone Shopping Center–Malden Center station Link
134 North Woburn–Wellington station Link
136 M Reading Depot–Malden Center station via Lowell Street Link
137 M Reading Depot–Malden Center station via North Avenue Link


A Dudley-bound route 170 bus (signed NO STOPS) at Back Bay station in 2017

170 and 171 are special low-service routes, the 170 a variant of the 70 introduced in 1968 and the 171 a replacement for early morning CT3 service when it was cut back from Logan Airport in 2002. Other numbers in the 170s were used for largely short-lived routes serving industrial areas.[1]

Route Note Description MBTA link
170 N Waltham Center–Nubian station Link
171 Logan Airport terminals–Nubian station Link


Routes from 191 to 194 are single round trips in the early morning, mainly meant for subway fare collectors but open to the public. They were introduced by the M.T.A. in 1960.[1]

Route Description MBTA link
191 Mattapan stationHaymarket station Link
192 Cleary Square–Haymarket station Link
193 Watertown Yard–Haymarket station Link
194 Clarendon Hill–Haymarket station Link


Route 195 is a special low-service route not open to the general public nor shown on MBTA maps. It connects downtown Boston with the homeless shelter at Lemuel Shattuck Hospital. Until September 2015, the route was numbered 277 to match routes 274-276 (which connected downtown Boston to the Long Island Health Campus and were suspended due to the closure of Long Island Bridge in October 2014.)[1]

Route Description MBTA link
195 Lemuel Shattuck Hospital–Park Street & Tremont Street Link


The 20 belt route was created by the M.T.A. in 1962 as a combination of the 20 and 21 stub routes inherited from BERy. In 2005, the MBTA redesignated the two directions of the loop as the 201 and 202 to avoid confusion about which way each bus ran.[1]

Route Description MBTA link
201 Fields Corner Loop via Neponset Ave Link
202 Fields Corner Loop via Adams Street Link


These routes operate in the Quincy area. Routes 210-245 are based on routes originally operated by the Eastern Massachusetts Street Railway (folded into the MBTA in 1968) which mostly ran into Fields Corner station. When the Red Line's Braintree Branch opened in the 1970s, these routes were rerouted to terminate at the new rapid transit stations (principally Quincy Center).[1]

A #214 bus (with #230 and #211 buses behind) at Quincy Center station
A #225 bus at Quincy Center station
Route Note Description MBTA link
210 Quincy Center stationFields Corner station Link
211 Quincy Center station–Squantum Link
212 N Quincy Center station–North Quincy station Link
214 N Germantown–Quincy Center station Link
215 Quincy Center station–Ashmont station via West Quincy Link
216 M Houghs Neck–Quincy Center station Link
217 Quincy Center station–Ashmont station via Wollaston station Link
220 Hingham Depot–Quincy Center station Link
221 N Fort Point–Quincy Center station Link
222 East Weymouth–Quincy Center station Link
225 Weymouth Landing–Quincy Center station Link
226 Columbian Square–Braintree station Link
230 Montello station–Quincy Center station Link
236 South Shore Plaza–Quincy Center station Link
238 Holbrook/Randolph station–Quincy Center station Link
240 Avon Square–Ashmont station Link
245 Quincy Center station–Mattapan station Link


A #326 bus in Medford in July 2015

These routes operate express between Medford and downtown Boston. They were introduced by the MBTA in June 1973.[1]

Route Note Description MBTA link
325 N Elm Street, Medford–Haymarket station Link
326 N West Medford–Haymarket station Link


A #354 bus in Woburn

These routes operate in the Burlington area. They are the remains of the Eastern Massachusetts Street Railway's Lowell Division, which was inherited intact by the MBTA in 1968 and gradually declined thereafter.[1]

Route Note Description MBTA link
350 North Burlington–Alewife station Link
351 M Bedford Woods Drive–Alewife station Link
352 N Burlington–State Street, Boston Link
354 N Woburn–State Street, Boston Link


These routes operate in the Lynn area and the North Shore. Two routes that run to Haymarket have weekend short-turn variants (labeled with a W suffix) that terminate at Wonderland. The 411 and 430 were Service Bus Lines routes that were acquired by the MBTA in 1975; the other routes are largely Eastern Massachusetts Street Railway routes acquired in 1968.[1]

A route 430 bus leaving Malden Center station
A route 451 bus on Route 1A in Salem
Route Note Description MBTA link
411 Kennedy Drive or Jack Satter House–Malden Center station Link
424 Eastern Avenue & Essex Street–Wonderland station Link
426 Central Square, LynnHaymarket station Link
426W Central Square, Lynn–Wonderland station Link
428 Oaklandvale–Haymarket station Link
429 Northgate Shopping Center–Central Square, Lynn Link
430 Saugus Center–Malden Center station Link
434 N Main Street, Peabody–Haymarket station Link
435 M Liberty Tree Mall–Central Square, Lynn via Peabody Square Link
436 Liberty Tree Mall–Central Square, Lynn via Goodwin Circle Link
439 Nahant–Wonderland station Link
441 Marblehead–Wonderland station via Paradise Road Link
442 Marblehead–Wonderland station via Humphrey Street Link
450 Salem Depot–Haymarket station Link
450W Salem Depot–Wonderland station Link
451 North Beverly station–Salem Depot Link
455 Salem Depot–Wonderland station Link
456 Salem Depot–Central Square, Lynn Link
465 N Danvers Square–Salem Depot Link


These routes operate express between Newton and downtown Boston via the Massachusetts Turnpike (I-90). The 500 series routes were created by the MBTA in the 1960s to take advantage of the newly constructed turnpike extension into Boston. The 550 series routes were Middlesex and Boston Street Railway routes to Newton Corner that were extended to downtown Boston in the 1960s and taken over by the MBTA in 1972.[1]

A #504 bus on Stuart Street in 2019
Route Note Description MBTA link
501 M Brighton Center–Federal Street & Franklin Street Link
502 N Watertown YardCopley station Link
503 N Brighton Center–Copley Square Link
504 M Watertown Yard–Federal Street & Franklin Street Link
505 Waltham Center–Federal Street & Franklin Street Link
553 M Roberts–Federal Street & Franklin Street Link
554 M Waverley Square–Federal Street & Franklin Street Link
556 M Waltham Highlands–Federal Street & Franklin Street Link
558 M Riverside station–Federal Street & Franklin Street Link

Privately operated routes[]

An MBTA bus operated by Paul Revere Transportation running on the #713 route at Orient Heights station in 2018

The MBTA provides partial subsidy for some suburban routes outside its usual service area that connect with MBTA bus, subway, or commuter rail service. Routes 710-716 are radial commuter routes that accept MBTA passes on CharlieTickets only; they were taken over from various private operators (Hudson Bus Lines for the 710 and 716, Rapid Transit Inc. for the 712/713, and Nantasket Transportation for the 714).[1]

The non-numbered routes (listed here by their designator on MBTA maps) are local circulator services founded by the municipalities with partial MBTA subsidy.[1] All are operated by private companies under contract, except for the Beverly Shuttle which is operated by the Cape Ann Transportation Authority.

Route Note Description MBTA link
710 N North Medford–Wellington station Link
712 Point Shirley, Winthrop–Orient Heights station via Revere Street Link
713 Point Shirley, Winthrop–Orient Heights station via Winthrop Center Link
714 Pemberton Point, Hull–Station Street, Hingham Link
716 Cobbs Corner–Mattapan station Link
BED N Bedford Local Transit Link
BEV City of Beverly Shuttle Link
LEX Lexington Lexpress (6 routes) Link
MIS Mission Hill LINK Link


  1. ^ a b c d e f g h i j k l m n o p Belcher, Jonathan. "Changes to Transit Service in the MBTA district" (PDF). Boston Street Railway Association.
  2. ^ "Service Delivery Policy" (PDF). Massachusetts Bay Transportation Authority. July 13, 2006. pp. 3, 26–27. Retrieved July 24, 2014.

External links[]