Videótár: 1920s PCC Trams in Boston, USA 2022 - The Ashmont-Mattapan High Speed Line

  Boston, PCC — 3263, PCC — 3087,  PCC — 3230 , PCC — 3268

The Ashmont–Mattapan High-Speed Line, also called the Mattapan Trolley and M Line, is a partially grade-separated light rail line which forms part of the MBTA's Red Line rapid transit line. The line, which runs through Boston and Milton, Massachusetts, opened on August 26, 1929, as a conversion of a former commuter rail line and exclusively uses historic PCC streetcars for rolling stock, in tandem with a maintenance team of blacksmiths and metalworkers who make livery parts. Passengers must transfer at Ashmont to access the rest of the Red Line, which uses heavy rail metro rolling stock.

The official name of the line was changed in 2018 from "Ashmont–Mattapan High Speed Line" to "Mattapan Trolley". The 2.6-mile (4.2 km) route is used only by streetcars and has just two public grade crossings. All stations have low platforms, but all except Valley Road have been retrofitted with wheelchair lifts or wooden ramps for handicapped accessibility. Unlike most heritage streetcar lines, it is an integral part of the modern MBTA transit system rather than a tourist attraction. ~Wikipedia