**2.2 Preparation**

During preparation, the train needs to be automatically or manually coupled, and the brake mode is set manually. This requires knowledge of the train currently handled as well as of the particular wagon since the brake mode is selected according to train mass and length, while for many wagons, the empty-loaded selection is also handled manually.

These steps are executed manually, which requires an operator (typically especially skilled yard personnel or the train driver) to walk along the train. This wasteful motion of the operator consumes time, depending on the length of the train and the number of required actions to be taken.

Further preparation steps include filling of the brake pipe and the associated reservoirs, which may be time-consuming depending on the train's state.
