In context of overlay "Surfaces" – Avenue Gladstone (Unmarked Crossing) – https://osm.org/way/1273106807 via StreetComplete 57.3:

Should this count as an unmarked crossing? It seems like there is none. 
Cela devrait-il être considéré comme un croisement non marqué ? il semble qu'il n'y en ait pas du tout.

Attached photo(s):
https://westnordost.de/p/216044.jpg