Park Street

Park Street is a station on the MBTA subway system, located at the intersection of Park Street and Tremont Street under Boston Common in downtown Boston. One of the two oldest stations on the "T" (the other is Boylston), Park Street is the transfer point between the Green and Red Lines, as one of the quartet of "hub stations" on the MBTA subway system. Park Street is the fourth-busiest station in the MBTA network, with an average of 19,836 entries each weekday in 2010.HistoryInitial constructionTremont Street SubwayThe southern section of the Tremont Street Subway from the Public Garden Incline through Boylston to Park Street opened on September 1, 1897, followed on October 1 by the spur to the Pleasant Street Portal. The station was built with 4 tracks serving 2 island platforms; these were connected by two loops, allowing streetcars from the south and west to reverse direction and return to the portals and surface routes.On September 3, 1898, the tunnel was extended to Scollay Square, Adams Square, Haymarket Square, and the Canal Street Incline. Some cars ran all the way through the tunnel on the outer tracks; others continued to loop at Park Street.