This would be an awesome route as it connects some ice, National express and more. I have been on the route before, and it is quite a pleasant route. And it's long, as well as a good variety of freight mostly vectrons around the area.
I think only Köln-Bonn would be too short, i mean the ICE drives like 10 minutes there? (maybe bit more or even less), if, then something like Köln-Koblenz or something like that.
Yeah no, a 25km mainline journey is pitiful What would make far more sense and is far, far better is having the 100km line from Koln to Koblenz which runs via Bonn
