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by NeoTar 1383 days ago
It's mentioned in the 'about' page (click the 'i' link) - https://news.ycombinator.com/reply?id=32647603&goto=item%3Fi...

> Schedules are extracted from the GTFS data of the VBB (loaded on Fri, 26 Aug 2022 13:11:26 GMT) which contains arrival time and departure time of every hour of every day. The movement of the train is simulated at constant speed between stations.