Bundesbahndirektion

In Germany and Austria, the running of railway services for a railway administration or the regional network of a large railway company was devolved to railway divisions, variously known as Eisenbahndirektionen (ED), Bundesbahndirektionen (BD) or Reichsbahndirektionen (RBD/Rbd). Their organisation was determined by the railway company concerned or by the state railway and, in the German-speaking lands at least, they formed the intermediate authorities and regional management organisations within the state railway administration's hierarchy. On the formation of the Deutsche Bahn AG in 1994 the system of railway divisions (Eisenbahndirektionen) in Germany was discontinued and their tasks were transferred to new "business areas".

The first railway divisions of the various German state railways (known as Länderbahnen), usually reported to a specific government ministry. For example, in Prussia they came under the 'Ministry for Trade, Industry and Public Works" and, from 1878, the "Ministry of Public Works" which had been split off from it. In the Kingdom of Bavaria the railway operating divisions came under the "State Ministry of Transport". By contrast the Royal Saxon State Railways reported to the Saxon finance ministry.

In Bavaria the five railway operating divisions (Eisenbahnbetriebsdirektionen) initially worked under the "General Division for Royal Transportation", in 1886 they reported to the "General Division of the Royal Bavarian State Railways" and from 1906 to the "State Ministry of Transport".

As a small state, Baden ran its railway operations from just one central headquarters and it was not until 1882 that there was a railway division in Karlsruhe. Hitherto, the responsibility for national railway construction was allocated to its Home Office and operations, by contrast, to the Foreign Office. In between times, the "Department of Waterway and Road Construction" and, later on, the "Department of Post and Railways" were responsible.

As the organisation of railway operations progressed, railway divisions were usually subject to state control with regard to finances. In particular this covered the fares structure (standard fare rates and special fares for specific areas), the retention or handing over of financial takings and the guarantee of additional resoureces to compensate for losses or for the construction of railway structures such as stations, new lines or electrification.

...
Wikipedia