Not only does Bielefeld not exist - the tracks in Lohra don't exist either:
According to police reports, the company had commissioned two firms with forged orders from the railway. The workers had work to do for at least two weeks. The tracks laid on steel sleepers were completely torn out of the ballast. Afterwards, the tracks went to scrap dealers. A ton of scrap currently costs 200 euros.
Well, if I had to come up with a joke, I wouldn't think of the idea that you could steal tracks. Reality can only be that absurd ...