[Bengalilol]

You are right, the devs says that the vehicle positions are estimated from the official timetable and real-time GTFS-RT delay information, rather than from publicly available GPS coordinates.

<https://opentransportdata.swiss/en/cookbook/realtime-predict...>

btw while looking for th GTFS-RT info, I found this site, which is less minimal but has a 3D cockpit beta functionality...

<https://transitflow.ch/>