 As such, S-Bahn trains share tracks with regional trains (which travel further than the S-Bahn, some regional lines crossing into neighbouring countries) and other rail traffic, including freight trains.The numbering of the lines has changed since the partial opening of the Wien Hauptbahnhof on 9 December 2012.No lines except for S45 always have the same route and final station; most have trains that go further and ones that do not run to the terminal.