MR-73 (subway)

MR-73 is a type of oars on tires ordered in 1973 by the Town of Montreal during the prolongation of sound subway. The company Bombardier obtains this contract of construction of 423 cars, similar to MP 59 of the Métro of Paris, which it delivers in 1976 for the Olympic Games of Montreal. They are distinguished visually from these last by their square headlights rather than round, their blue interiors or oranges rather than white and by the music heard at the time of their departure which must with their electric system.

Description

The cars are made of a light steel alloy, measure 2,5 meter of width per meters length and comprise four sliding doors with two leaves on each side. 40 seats there are found and of the place for approximately 60 passengers upright but their full capacity of load is of 160 passengers. These pulsations produce, completely by chance, the first three notes of the piece of music " " (article of the anglophone wiki), by Aaron Copland, one of the musical topics of Expo 67.

Each car is assembled on two Bogie S, each one having four tires and four wheels of steel of help. As they roll on tires, they are very quiet compared to trains on rails and can assemble steeper slopes, up to 6,5%. They have electromagnetic brakes which act on side casters guides which rest vertical bars, in addition to the system by friction. Electromagnetic braking is completely different from that of the MR-63 and makes it possible to recover part of the kinetic energy of the oar. The choppers of current are reversed and transformed the engines into generators and electricity thus recovered is turned over towards the electrical communication of the Subway. This is particularly effective if one coordinates the stops of a train with the departure of another.

Restorations

In 2003, is twenty-seven years after their service entrance, each one of these original cars had traversed more than two million kilometers. In 2005, cars MR-73 started to be renovated at the cost of 40 million Can. It is especially about the refitting of the interiors by changing the configuration of the seats for accomododer a greater number of passengers. Inter alia, one decreases the number of double seats what leaves more space for the passengers debouts and one adds posts to help those to be held. The color of the lower panels side and the seats is changed with the dark blue what discourages vandalism, decreases the evil of transport at the people who are likely there and gives a psychological effect calming. The lighting system with complete Visible spectrum, the seats of the passengers and the drivers are also more ergonomic S

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