I can’t speak for Sudbury, but I remember Toronto doesn’t even start plowing until 4-5cm of snowfall. In Finland, is the city of Oulu, where they give priority to cycle paths, plowing within a few hours of 2cm snow. The snow services in Oulu guarantee there will always be less accumulation that what it takes for Toronto to even begin.

Additionally, they don’t just push it off to the side, and call it done. They pack some of it down into a walkable and rideable surface. This allows year round use of the cycle network, with the largest dip in ridership being 20% when it’s colder than -20C.

Of course, this all must start by having such a network in the first place. Sidewalks are a good starting place. Hopefully, if Sudbury can keep them clear, the usage through the winter will help justify a higher budget to build out walking and cycling infrastructure.