Green Line (Montreal Metro) Green Line (Montreal Metro) The Green Line (), also known as Line 1, is one of the four lines of the Montreal Metro in Montreal, Quebec, Canada. The line runs through the commercial section of downtown Montreal underneath Boulevard de Maisonneuve, formerly Rue de Montigny. It runs mainly on a northeast to southwest axis with a connection to the Orange and Yellow Lines at Berri-UQAM, and with the Orange Line west of downtown at Lionel-Groulx. The section between Atwater and Frontenac was part of the initial network; the line was extended to Honoré-Beaugrand in 1976 to provide easy access to
Montreal Metro station in 1981. As the stations were completed, the service was extended. In December 1979 Quebec presented its "integrated transport plan" in which Line 2 (Orange Line) was to be tunnelled to Du College station and Line 5 (Blue Line) from Snowdon station to Anjou station. The plan proposed no other underground lines as the government preferred the option of converting existing railway lines to overground Metro ones. The mayors of the MUC, initially reluctant, accepted this plan when Quebec promised in February 1981 to finance future extensions fully. The moratorium was then modestly lifted on Line 2 (Orange Line)