Bahnbetriebswerk (steam locomotives)
A Bahnbetriebswerk (also abbreviated to Betriebswerk, Bw or BW) is a German railway depot where the maintenance of locomotives and other rolling stock is carried out. It is roughly equivalent to a locomotive shed, running shed or motive power depot.
Source: Wikipedia — Bahnbetriebswerk (steam locomotives) (CC BY-SA 4.0)