They have metal dust from the outer rims, made of softer metals. They also have brake pads, which are (experimentally for now in some regions, mandatory in othe

They have metal dust from the outer rims, made of softer metals. They also have brake pads, which are (experimentally for now in some regions, mandatory in others) being exchanged with plastics, because less noise. https://cordis.europa.eu/article/id/238333-quieter-safer-and-greener-freight-transport https://cordis.europa.eu/article/id/238333-quieter-safer-and... https://www.projectfutura.com/ https://www.projectfutura.com/ https://nachhaltigkeit.deutschebahn.com/en/measures/whisperbrake https://nachhaltigkeit.deutschebahn.com/en/measures/whisperb... https://www.bund-naturschutz.de/wirtschaft-umwelt/leise-gueterzuege https://www.bund-naturschutz.de/wirtschaft-umwelt/leise-guet... http://www.gegen-bahnlaerm.de/flusterbremsen/ http://www.gegen-bahnlaerm.de/flusterbremsen/ https://nachhaltigkeit.deutschebahn.com/de/dialog/veroeffentlichungen/laermschutzbericht2019/gueterwagen https://nachhaltigkeit.deutschebahn.com/de/dialog/veroeffent... I hear train engineers are not that fond of them, because they brake like shit, depending on the downgrade (because heating, rapidly changing braking characteristics), and weather. It's one last drop bursting the barrel, for some I personally know to go into early retirement, amongst all the other shit happening within DB-Cargo/Schenker/whatever they wanna be called at the day. Pick your poison…