Many thanks for adding these. I find these very useful for planning running and walking routes.

When you add separate sidewalks, would you mind updating the sidewalk tagging on the parent street? It potentially gives a hint to routing software and also makes it easier to query OSM for the extent of sidewalk mapping.

https://wiki.openstreetmap.org/wiki/Key:sidewalk#Separately_mapped_sidewalks

I've updated the tagging for these new sidewalks in
https://www.openstreetmap.org/changeset/150203590