Montreal Metro Montreal Metro The Montreal Metro () is a rubber-tired, underground rapid transit system serving the city of Montreal, Quebec, Canada. The Metro, operated by the Société de transport de Montréal (STM), was inaugurated on October 14, 1966, during the tenure of Mayor Jean Drapeau. It has expanded since the 1960s from 26 stations on three separate lines to 68 stations on four lines totalling in length, serving the north, east and centre of the Island of Montreal with connections to Longueuil, via the Yellow Line, and Laval, via the Orange Line. The Montreal Metro is Canada's busiest rapid transit system,
Blue, Green, and Waterfront Lines (Cleveland) remained with the opening of the Waterfront "line" extension of the Blue and Green lines. In the mid 2010s, the Waterfront line became a separate designation from the 67 and 67A Blue and Green lines. The Waterfront line was briefly designated as 67W, before the three routes united under the 67 designation, which is now internal and not shown on official timetables. The Blue and Green Lines are the direct, continuously operating descendants of the privately owned Cleveland & Youngstown Railroad, Cleveland Interurban Railroad and later the municipally owned Shaker Heights Rapid Transit, built as streetcar lines to connect the