Am 25.10.2021 um 17:40 schrieb John Lovda via groups.io:
I saw this locomotive sitting at the Zurich HB.This is a railcar
Most things have been said, but to add this: SBB must check all lines where speeds over 160 km/h are possible weekly, IIRC. Apart from this, "normal" lines are checked at least once a year to recognise problems. The railcar is also used on lines of other infrastructure managers.