Everything else is freight. All the old passenger rail was converted (or abandoned/removed) long ago.
What the US destroyed most of were local, municipal rail lines. https://en.wikipedia.org/wiki/General_Motors_streetcar_consp...
The German rail network is in shambles - but compared to how some American freight rail looks like, even that is more like Japan's excellent railways... I've seen far too many examples like [1] for my liking on youtube. This kind of shit would actually land you jail time here if you as a responsible person would let a train run there. Or this legit, on-camera derailment [2] - no way the train would be allowed to just continue to move on, it would get a full-blown investigation and those responsible for the dereliction probably a criminal trial for endangering rail traffic [3].
[1] https://www.youtube.com/watch?v=9X2A2f6E5DI
Making the system move faster translates directly to additional capacity. More capacity translates to more revenue. Think about it this way—if you increase the speed that a train moves by 10%, then you can make 10% more trips with the same system, in the same amount of time. You can keep doing this until profit you get from the additional capacity results is wiped out by the losses caused by accidents.
The largest rail freight company in the US has operating revenue of something like $25 billion, with margins around 50%. The recent derailment in Ohio cost an estimated $1 billion. By that math, you could increase the speed until every 4% speed increase would result in 1 derailment per year of that scale, or some combination of smaller derailments.
There are about 3 derailments per day in the US. (Note that this is a much lower figure than it was 20 or 50 years ago.)
They are systematically devaluing vital infrastructure to increase short term profit and have done the bare minimum of investment. Systematically devaluing vital infrastructure in the country.
For the US not to treat the railroads as a strategic infrastructure is borderline insane.
There are a huge amount of accidents that have to do with bad infrastructure maintenance and bad signaling.
> if you operate the trains that way.
Yes, if you have badly maintained infrastructure and you run badly maintained trains on it, its gone cause issue.