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
Yellow Line (Montreal Metro) place on April 1, 1967. In the first four weeks, the station on Saint Helen's Island served only the construction workers of the Expo site. It finally opened to the public on April 28, 1967, the day after the official opening of Expo 67. In June 2008 the City of Montreal proposed a number of service improvements and Metro extensions, including projecting the Yellow Line from Berri-UQAM to McGill station to ease congestion on that part of the Green Line. In December 2011, an extension to Longueuil was announced. The former Agence métropolitaine de transport (now ARTM) published a study,