EntityQ152015· pop 11· linked from 366 articlesBlue LineSign in to savesubway line of the MBTA (Boston subway system)ConnectionsRed LineEntityoverhead contact lineEntityAirport stationEntityrapid transitEntitystandard-gauge railwayEntityLogan International AirportEntityaccessibilityEntityPort Authority Trans-HudsonEntityMassachusetts Bay Transportation AuthorityEntityOrange LineEntityBowdoin stationEntityCharles/MGH stationEntitypassenger rail terminologyEntityCanadaCountryNew JerseyEntityBostonEntityInternational Standard Book NumberEntitytramEntitytunnelEntitystainless steelEntityCategories600 V DC railway electrificationAirport rail links in the United StatesBlue Line (MBTA)Standard-gauge railways in the United StatesTransportation in Suffolk County, MassachusettsTunnels completed in 1904