The Massachusetts Bay Transportation Authority

Massachusetts Bay Transportation Authority

The Massachusetts Bay Transportation Authority, often referred to as the MBTA or simply The T, is the public operator of most bus, subway, commuter rail and ferry systems in the greater Boston, Massachusetts, area. Officially a "body politic and corporate, and a political subdivision" of the...

operates a large number of bus

Bus

A bus is a road vehicle designed to carry passengers. Buses can have a capacity as high as 300 passengers. The most common type of bus is the single-decker bus, with larger loads carried by double-decker buses and articulated buses, and smaller loads carried by midibuses and minibuses; coaches are...

lines in the greater Boston

Boston

Boston is the capital of and largest city in Massachusetts, and is one of the oldest cities in the United States. The largest city in New England, Boston is regarded as the unofficial "Capital of New England" for its economic and cultural impact on the entire New England region. The city proper had...

 area. Some routes are for transport within the city; others bring passengers from surrounding areas to stops on the rail lines (commuter

MBTA Commuter Rail

The MBTA Commuter Rail serves as the regional rail arm of the Massachusetts Bay Transportation Authority, in the United States. It is operated under contract by the Massachusetts Bay Commuter Railroad Company a joint partnership of Veolia Transportation, Bombardier Transportation and Alternate...

 or subway) of the MBTA.

The MBTA also operates bus rapid transit

Bus rapid transit

Bus rapid transit is a term applied to a variety of public transportation systems using buses to provide faster, more efficient service than an ordinary bus line. Often this is achieved by making improvements to existing infrastructure, vehicles and scheduling...

 service; see the Silver Line

Silver Line (MBTA)

The Silver Line is the only bus rapid transit line currently operated by the Massachusetts Bay Transportation Authority . It operates in two sections; the first runs from Dudley Square in Roxbury to downtown Boston, Massachusetts and South Station, mostly via Washington Street, with buses...

 article for more information.

The MBTA has a policy objective to provide transit service within walking distance, defined as 1/4 mile, for all residents living in areas with population densities greater than 5000 PD/sqmi.