As key:evacuation_route is currently almost exclusively used on relations anyway, it might make more sense to deprecate this tag and instead define a new value for route=* on type=route relations (and than add all the refinements that you propose)…
-- Lukas Sommer _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
