Paris, Roissy Charles de Gaulle Terminal 2 (airport): Display showing the stops of a RER train. It is necessary to indicate all stops because some trains skip stations (for commuters there is an easier way: there are several names to indicate at which stations the train will stop).
Noteworthy detail: Connections with RER lines C and D are shown on the display (lines are operated by the SNCF), but there is no reference to RER line A (operated jointly by RATP and SNCF like line A). Photo by Joerg Kuntz