 When the extension of the Massachusetts Turnpike to downtown Boston began in 1961, the third and fourth tracks were removed.The NYC merged into Penn Central in 1968; by 1969, Framingham saw just 4 daily round trips.The MBTA began subsidizing service as far as Framingham in January 1973; the last Worcester round trip ended on October 27, 1975, leaving Framingham as the terminus of the line.