Thank you for correcting me. It is definitely best to mark the barriers in a proper way. I was a bit frustrated that the maps I use (based on OSM) do not propagate barriers correctly and oftentimes lead me to fences.

It is collected into the underground municipal waste system.

OK, if railway=abandoned is the correct way according to the wiki, there's no dispute.
Are there still tracks? No, there used to be a bridge over the road, but that was removed too.