Pedestrian's potential is not affected by stairs
In Rimea 14 (see the screenshot from VADERE scenario) the question is:
Do the pedestrians take a shorter route via another floor or do they stay on the longer route on the same floor?
Currently, in our case, all pedestrians take the shorter way using the stairs. This means we have no option to define this behaviour. The reason is that stairs are another model and do not affect the OSM floor field. Consequently, the pedestrians do not see the additional effort when taking the shortest path but using the stairs.
This is also a modelling question, how should the floor field be changed?