But yeah, it wasn't great beforehand, the trend was already there and it's not the 9-Euro-Tickets fault, IMO.
> I think the core problem is huge and extremely traditional management.
IMO a big part is also the neglected infrastructure. Many trains are new and old rolling stock is being upgraded, station buildings are being renovated, but the tracks and the signaling is often very old. There is just so much you can do when your (station) signaling still uses relays from the 60s.
That's modern. About a quarter of the network still uses purely mechanical signalling and switch operations - that technology is literally and in every sense from the era of the German Kaiser Reich days.
[1] https://www.youtube.com/watch?v=6TLcaJdsRr0 [2] with the exception of a few "weird" Intercitys that take very strange routes to reach tourist destinations like Berchtesgaden
Until it'll be bypassed by the new Rastatt tunnel, there's at least one mechanical signal box left between Karlsruhe and Offenburg (Durmersheim) which sees regular and frequent intercity traffic. Until very recently there used to be another one immediately north of it (Forchheim) [1], but due to the construction works for the junction with the new high-speed line it was replaced with a new computer-based interlocking in 2018.
[1] And a mechanical block post in-between, but that one was more or less permanently switched out and was probably last used in 2009, when during construction works the parallel line via Ettlingen was closed,
If you look at the map, filter for active signal boxes only and also remove "Elektrische Stellwerke" from the default filter, you might be able to discover whether the are any other mechanical or electro-mechanical signal boxes left on any of the main intercity routes.
(And since you mentioned Berchtesgaden: It looks like that whole line was switched to ESTW-operation (for non-Germans: computer-based interlockings) in November last year.
Not saying that this is not a problem, but bulky management is a constant for DB, even during the years where it was considered world-class. I think it is the budget cuts and the resulting lack of infrastructure.
What you see is a problem amplifier. Any problem related to any train, track or signal is amplified there and becomes a much bigger problem, for too many trains and people. Some of the tracks you see are high-speed tracks reserved for high-speed trains, but the problems spread to those too.
Is it possible to build such intersections better, so they don't amplify problems to such a degree? Absolutely.
Blaming "management" is a fine thing to do to do when you've no clue what's wrong or how it could be fixed, but you want to blame someone. Nice and generic.
I don't and no one else at DB has it apparently either, that's the real problem :)