[dobin]

Maybe you are not aware, but swiss trains dont go back to sleep after they arrive at a destination. They stop for 3-5 minutes, and then continue to their next destination. All day long, from morning till evening. Geneve to St. Gallen with like a dozen stops is pretty long way. Especially when you drive it 6 times a day.

Also generally the length of the tracks dont magically change. It is possible to create a timetable: which train should be where when, and then stick to it.

Note that before the DB, SBB were anoyed with some models of french or italien trains, which broke down regularly, putting too much pressure on the integrated timetable.