This is a multi-use Path, not a cycleway. There are even signs posted instructing cyclists to yield to pedestrians (see Mapillary imagery).
https://wiki.openstreetmap.org/wiki/Michigan

There was already a route relation for the Lakelands trail.
https://www.openstreetmap.org/relation/272564

The various names of this trail are on its various route relations. The ways do not need their own names.

The railway is long past abandoned (see Mapillary imagery). Nearly all of it has become something else, like a multi-use path.