As of 2024, the standard local bus fare is $1.70 for a one-way trip. The Silver Line's waterfront routes (SL1, SL2, SL3, SLW) apply the regular subway fare of $2.40. Express buses charge $4.25 one-way for trips into downtown Boston but maintain local fares on their local segments.
During the COVID-19 pandemic, several routes were either suspended or altered; however, full service was reinstated by 2021 with some exceptions where routes remain discontinued. Since 2018, the MBTA has been working on an extensive redesign of its bus network, aiming for completion by 2028. The initial phase of this redesign was implemented in December 2024.
Silver Line
The Silver Line consists of six routes forming a bus rapid transit system promoted as rapid transit service. It is divided into two branches: the Waterfront services (SL1, SL2, SL3, SLW) that run through the South Boston Transitway tunnel and the Washington Street services (SL4, SL5) that operate on surface streets. Waterfront routes require payment of subway fares, while Washington Street lines charge standard bus fares. All Silver Line vehicles are articulated 60-foot buses; those serving the Waterfront are hybrid models equipped with extended battery capacity to allow electric operation within tunnels.
The SL5 route succeeded the Washington Street Elevated line in 2002. The Shuttle service began in 2004, followed by SL2 and SL3 later that year. In 2005, SL1 was introduced using dual-mode buses. The SL4 started in 2009 after plans for a Phase III tunnel were canceled. A new SL3 route connecting to Chelsea was launched in 2018.
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From a page move: This is a redirect from a page that has been moved (renamed). This page was kept as a redirect to avoid breaking links, both internal and external, that may have been made to the old page name.
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The MBTA operates two crosstown (CT) routes offering limited-stop service that connects key subway stations and major bus transfer points. Initially, three crosstown routes were introduced in 1994; however, route CT1 was merged into route 1 in 2019.
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These lines cover nearly all local transit within the metropolitan center, with most having originated as streetcar routes operated by the Boston Elevated Railway. Arranged approximately in a clockwise sequence from the southeast to the northeast, this core system has largely persisted since the BERy period, notwithstanding some minor consolidations and expansions during the M.T.A. and MBTA administrations.
Seven routes—, , , , , , and —serve western suburban communities such as Bedford, Waltham, Lexington, and Needham. These lines trace their origins to services acquired from the Middlesex and Boston Street Railway in 1972 and were assigned numbers previously retired.
Fourteen routes—, , , , , , , , , , , , , and —were classified as key bus routes in 2004. These high-ridership corridors provide frequent connections complementing subway service to densely populated urban neighborhoods. Starting in 2024, the MBTA's Bus Network Redesign is replacing the "key bus" label with a broader frequent route network. Routes 28 and 39 utilize 60-foot articulated buses.
A set of four early morning round trips (internally designated 191–194) link outlying stations to over parts of several local lines. Although primarily intended for station staff, these trips are accessible to all riders.
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(remaining route entries omitted for brevity)
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Routes numbered 131 through 137 serve the Melrose vicinity, descending from former Eastern Massachusetts Street Railway routes absorbed into the MBTA system in 1968. The discontinued routes 136 and 137 briefly extended service to Lowell and Lawrence during MBTA operation. Route 132 was initially run by Service Bus Lines before being incorporated into MBTA operations in 1975.
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Route 171 operates on a limited basis as a replacement for early morning CT3 service reductions at Logan Airport since 2002. Other routes in the 170 series primarily served short-term industrial area transit needs.
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Originally created in 1962 by combining BERY's routes 20 and 21, the 20 belt route was renumbered in 2005 as routes 201 and 202 to better indicate the loop directions around Fields Corner.
Serving the Quincy region, routes numbered 210 through 245 trace back to the Eastern Massachusetts Street Railway, which was incorporated into the MBTA in 1968. With the phased introduction of the Red Line's Braintree Branch during the 1970s and 1980s, these bus lines were adjusted to connect with rapid transit stations such as .
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When appropriate, protection levels are automatically sensed, described and categorized.
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From a page move: This is a redirect from a page that has been moved (renamed). This page was kept as a redirect to avoid breaking links, both internal and external, that may have been made to the old page name.
When appropriate, protection levels are automatically sensed, described and categorized.
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From a page move: This is a redirect from a page that has been moved (renamed). This page was kept as a redirect to avoid breaking links, both internal and external, that may have been made to the old page name.
When appropriate, protection levels are automatically sensed, described and categorized.
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From a page move: This is a redirect from a page that has been moved (renamed). This page was kept as a redirect to avoid breaking links, both internal and external, that may have been made to the old page name.
When appropriate, protection levels are automatically sensed, described and categorized.
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Covering Burlington and Woburn, these routes originated from the Lowell–Boston corridor of the Eastern Massachusetts Street Railway, which MBTA took over in 1968 before scaling back service to Burlington.
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Serving Lynn and the North Shore area, these routes encompass former Service Bus Lines routes (411, 430) acquired in 1975, along with predominantly Eastern Massachusetts Street Railway routes obtained in 1968. Certain routes heading to Haymarket operate weekend short-turn services that end at Wonderland, marked with the suffix W.
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These express services link Newton with downtown Boston by way of the Massachusetts Turnpike (I-90). Initiated in the 1960s following the turnpike extension, the 500-series routes incorporate former Middlesex and Boston Street Railway lines (550 series) that were extended into downtown Boston during that decade and later integrated into the MBTA system in 1972. In 2020, their terminus was shortened back to Newton Corner.
Route
Description
MBTA link
501
Brighton Center to Federal Street & Franklin Street in Boston's Financial District
The MBTA provides partial funding for suburban transit lines beyond its primary service region that connect to the MBTA network. Routes 712 through 716 are radial commuter services originally operated by private companies: Rapid Transit Inc. (712 and 713), Nantasket Transportation (714), and Hudson Bus Lines (716).
Additionally, local circulator routes initiated by municipalities receive some MBTA financial support. Except for the Beverly Shuttle, which is overseen by the Cape Ann Transportation Authority, these services are run by private contractors.
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From a page move: This is a redirect from a page that has been moved (renamed). This page was kept as a redirect to avoid breaking links, both internal and external, that may have been made to the old page name.
When appropriate, protection levels are automatically sensed, described and categorized.