Huntington Avenue Subway

The E branch (also referred to as the Huntington Avenue branch, or formerly as the Arborway Line) is a light rail line in Boston, Cambridge, Medford, and Somerville, Massachusetts, operating as part of the Massachusetts Bay Transportation Authority (MBTA) Green Line. The line runs in mixed traffic on South Huntington Avenue and Huntington Avenue between Heath Street and Brigham Circle (the last MBTA street-running tracks in revenue service), in the median of Huntington Avenue to Northeastern University, then into the Huntington Avenue subway. The line merges into the Boylston Street subway just west of Copley, running to North Station via the Tremont Street subway. It then follows the Lechmere Viaduct to Lechmere, then the Medford Branch to Medford/​Tufts. As of February 2023, service operates on eight-minute headways at weekday peak hours and eight to nine-minute headways at other times, using 13 to 17 trains (26 to 34 light rail vehicles). Horsecar service on Centre and South streets in Jamaica Plain began in 1857, followed by service on Tremont Street (part of which became the west part of Huntington Avenue) to Brookline Village in 1859 and on the east part of Huntington Avenue in 1881–84. Jamaica Plain service was electrified in 1891, and Huntington Avenue service in 1894. Several branches of the Huntington Avenue line were opened west of Brookline Village between 1894 and

Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).