u/24-Hour-Hate

I am looking to possibly move to Cambridge and I notice many homes have parking accessible via laneways. These laneways are labeled and show up on places like google maps, so are they public roads that will be maintained, have snow cleared, etc by the City (like any road would)? Or are these privately owned either collectively by the property owners in the neighbourhood or by one and it’s more of a right of way thing? (And thus maintaining and snow clearing would have to be contacted)? Sorry if this is a stupid question, but I’ve never seen this before and want to know what I could be getting into.