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,
Mexico City Metro lines closed because of security risks for the passengers because of rail corrugation. An investigation determined rails were incompatible with the trains, accusations of corruption arose and former Mayor Marcelo Ebrard left the country to avoid prosecution. After 18 months line was repaired and resumed service. <br> Mexico City Metro lines The Mexico City Metro is the largest and busiest heavy-rail rapid transit system in Mexico and second in North America, only behind the New York City Subway. , the system is composed of 12 lines denominated 1 through 9, 12, A and B, totalling of track length and 195 stations.