AbsoluteBlock
Member
Do you happen to remember which S-Bahn trains these were, by any chance?It happens on some S-Bahn trains in Berlin, too.
One very well-designed door system I've seen was on an ÖBB CityJet train. After someone presses the button on the door, the button is illuminated and that specific door will open automatically as soon as they are all unlocked. Top-notch UX and beautifully simple, but it didn't appear to completely stop the customary button-mashing practised by certain passengers in a hurry to get off! The wording of the label ("Haltewunsch") also suggests that the driver is alerted so that it could be used for request stops, but I didn't get to see this in action.