Hello, I removed bicycle=designated because the paths are tagged with highway=cycleway, which as the wiki says, "implies bicycle=designated" (https://wiki.openstreetmap.org/wiki/Tag:highway%3Dcycleway), so it's basically redundant. I'm not sure why iD thinks that's an error.

The way they're tagged now means it's a shared use path, but it could also be tagged with highway=path, foot=designated, bicycle=designated and mean the same thing.

I'm not local to the area, but the county database of bicycle infrastructure labels these as Shared Use Paths, so unless labeled differently on-site, they seem to be for both foot and bike.