Possibly? I think I’m hung up on tags containing sidewalk because I’m typically tagging sidewalk=yes|no|separate on the main road way. In my mental model, sidewalk=separate means there should be parallel ways tagged footway=sidewalk (or maybe cycleway=sidewalk) right nearby. If shared-use side paths are not tagged footway|cycleway=sidewalk then it seems that could indicate sidewalk=no on the main road way. This doesn’t seem right since the side path serves as a sidewalk. Maybe a different “sidething” tag can be the match to a sidewalk=separate though?
I may just be overthinking it, but this whole area of tagging is confusing and quite a mess. It seems there are at least six different tags in use to mean a way is a sidepath or sidewalk. Here are current usage numbers pulled from a combination of taginfo and overpass.
| Tag | Total use | Use with highway=cycleway or (highway=path + bicycle=designated) | Use with highway=cycleway | Use with highway=path + bicycle=designated |
|---|---|---|---|---|
| footway=sidewalk | 5,137,768 | 30,203 | 14,626 | 15,577 |
| is_sidepath=yes | 27,424 | 12,180 | 5,092 | 7,088 |
| cycleway=sidewalk | 7,454 | 7,028 | 6,915 | 113 |
| path=sidewalk | 6,433 | 5,294 | 266 | 5,028 |
| cycleway=sidepath | 3,838 | 3,350 | 1,288 | 2,062 |
| path=sidepath | 1,950 | 1,771 | 74 | 1,697 |