Berri–UQAM station is a Montreal Metro station in the borough of Ville-Marie, in Montreal, Quebec, Canada. It is operated by the Société de transport de Montréal (STM) and is the system's central station. This station is served by the Green, Orange, and Yellow lines. It is located in the Quartier Latin. Berri–UQAM is the 2nd deepest station in the network, and also the busiest station in the network, transfers not included. If transfers were included, the 13 million passengers number would rise to about 35–40 million a year. It is the only subway station in Canada to have three lines servicing it. Overview Designed by Longpré and Marchand, the station serves three lines: the Green, Orange, and Yellow Lines. The main part of the station is a cruciform cut and cover volume built underneath the intersection of rue Berri and boulevard de Maisonneuve; the volume is so large that the station's design had to include massive pillars to support the street. This central volume contains three levels. The upper level contains the rectangular mezzanine at its centre, with fare gates on all four sides; the arms extend out to the station's entrances, with two more entrances at the crossing, and are also lined with shops and services. Staircases lead from the mezzanine to the landings on either side of the Orange Line. These landings provide views of the great volumes over the Green Line platforms below. From the Green Line level, escalators and hallways connect the rest of the station to the Yellow Line terminus, built in a tunnel a block away under rue Saint-Denis, around 28 metres below the surface. Limited space in the yellow line tail tracks cause trains to reverse both in the tail tracks and in the foretracks when they leave the station. All three lines have side platforms. The station was the first to be equipped with the MétroVision information screens, which displays news, commercials, and the time until the next train arrives. In 2009, the station was made partially wheelchair-accessible through the addition of elevators. Two elevators connect the Orange Line platforms to the mezzanine. The Green Line platforms are accessible via two additional elevators as of November 2020. , the Yellow Line is not yet accessible - however construction is underway to provided elevators. The mezzanine can be accessed from the street via elevators in the Grande Bibliothèque du Québec and UQAM's Pavillon