Why would I need the keys operator and network in a public_transport=station? I know they are optional, but you either have them in the relation (type=public_transport + public_transport=stop_area) or in the public_transport=stop_position.
The other question I have is: Can an area be a relation that holds the nodes? So that the shape public_transport=station is the relation?
I recommend to ask in the high traffic german sub forum here again … there are more tagging-aware mappers for infrastructure in Germany, and even about railway issues.
I was looking at that relation while sitting on a train yesterday.
Sorry for my stupid question, but what does the relation bring into mapping? Why not just tag the station area with public_transport=station+area=yes+other usable tags?