Hello,

there is no type traffic_separation_scheme defined in the OSM wiki. Please use defined and more precise types, e.g.

https://wiki.openstreetmap.org/wiki/Tag:seamark:type%3Dseparation_boundary
https://wiki.openstreetmap.org/wiki/Tag:seamark:type%3Dseparation_lane
https://wiki.openstreetmap.org/wiki/Tag:seamark:type%3Dseparation_line