Quite some years ago there was some data backed evidence of this I would say. https://www.dkriesel.com/blog/2019/1229_video_und_folien_meines_36c3-vortrags_bahn

Quite some years ago there was some data backed evidence of this I would say. https://www.dkriesel.com/blog/2019/1229_video_und_folien_meines_36c3-vortrags_bahnmining https://www.dkriesel.com/blog/2019/1229_video_und_folien_mei... Here is the link to his talk directly https://youtu.be/0rb9CfOvojk?si=7EImZU9x4zFb6LSf https://youtu.be/0rb9CfOvojk?si=7EImZU9x4zFb6LSf Its true that the network is quite dense and used by also cargo trains, but there is no denying that things got worse and worse. I constantly experience delay to do some stuff not working. I forgot even the minute threshold when a train is still punctual according to DB. I believe it's 10min by now, which can be deadly if you need to switch trains :)