STM maintenance workers in Montreal have officially gone on strike, demanding better wages and working conditions. The strike is expected to impact public transit services, causing disruptions in bus and metro schedules. Negotiations between the workers' union and STM management have stalled, with both sides unable to reach an agreement. Amidst these challenges, the union emphasizes the importance of addressing staffing shortages and ensuring fair treatment for workers. The STM has contingency plans to minimize interruptions, but commuters are advised to anticipate delays and alterations in transit services during the ongoing industrial action.