Unable to answer "Does this road have lane markings?" – Railroad Square (Residential Road) – https://osm.org/way/18847916 via StreetComplete 62.1:

Dunno if this really counts as a road. But no there are no road markings.

Attached photo(s):
https://streetcomplete.app/p/322712.jpg
https://streetcomplete.app/p/322713.jpg