Personally i would categorize German, Austrian and Swiss routes together.
Logically speaking yes. But that would result in 80-90% or so of routes (on rail-sim.de) falling into a single category, so the problem would get worse rather than better!
2; so that roues like Salzburg Rosenheim, Holzkirschen Wörgl, Three Country Corner do not become difficult to place.
Hence my suggestion for a separate "cross-border" category.
