Connections

Took 10 biggest swiss citys
looked up the connections between them on sbb online timetable and sbb
live view.
(http://fahrplan.sbb.ch/bin/query.exe/dn?view=map&SetGlobalOptionGO_call
MapFromPosition=mapQuery&ChooseFromMap=yes&)

Put two additional nodes in (Olten, Arth-Goldau) because realized that
much is going over them
splittd everything up (for example if the train zürich to biel stops in
olten the connections are Zürich-Olten and Olten-Biel)
wrote out the shortest travel time between two nodes
Draw a map;D