STM to Move Aging MR-73 Trains to Green Line in 2031: What You Need to Know! (2026)

The aging métro trains of Montreal's Green Line are a ticking time bomb, and the city's transit authority, the STM, is facing a critical challenge. With the MR-73 trains, dating back to the 1970s, reaching the end of their lifespan, the STM is in a race against time to replace them. However, the process is far from simple, and the journey to a modern, reliable train system is riddled with obstacles.

The Urgency of Renewal

The MR-73 trains, despite their age, are still in operation, and their frequent breakdowns are a testament to their declining reliability. Compared to the newer Azur trains, the MR-73s break down a staggering 11 times more often. This situation underscores the dire need for an upgrade, as the STM chairperson, Aref Salem, has emphasized.

A Costly Undertaking

The replacement project is estimated to cost between $8 billion and $10 billion, a staggering amount. Just the initial study phase is expected to cost $46 million, which is a significant investment in itself. When compared to the $2.4 billion replacement of the MR-63 trains with the Azur models, the scale of this project becomes evident. The STM has allocated $11 million for initial studies, but the road ahead is long and expensive.

A Complex Process

The process of replacing these trains is not a straightforward one. It involves not only the replacement of the trains themselves but also the renovation of garages and the replacement of the train control system. Additionally, the STM must navigate the bureaucratic process, seeking permission from the province to proceed with the project. This process, as Martel-Théorêt points out, typically takes 15 years, emphasizing the need for swift action.

Public Pressure and Priorities

Public transit lobby groups and opposition parties are urging the province to prioritize this project. The aging métro network cannot afford further delays, and the concentration of less reliable MR-73 trains on the Green Line is a cause for concern. With most of the federal funds dedicated to public transit in Montreal going towards maintenance, the replacement of these trains is a crucial investment that cannot be overlooked.

A Long Road Ahead

The STM's journey to replace the MR-73 trains is a complex and lengthy one. From initial studies to securing funding and navigating bureaucratic processes, it is a challenging task. The STM must act swiftly, as time is of the essence. The aging trains are a liability, and the potential for further delays is a concern. The city's transit system deserves a reliable and modern fleet, and the STM's efforts to achieve this are a testament to their commitment to improving public transportation.

Conclusion

The story of Montreal's aging métro trains is a reminder of the challenges faced by urban transit systems worldwide. It highlights the importance of continuous investment and maintenance to ensure reliable and efficient public transportation. The STM's efforts to replace the MR-73 trains are a step towards a brighter, more sustainable future for Montreal's transit network.

STM to Move Aging MR-73 Trains to Green Line in 2031: What You Need to Know! (2026)
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