VBB has been publishing GTFS (Static/Schedule) data for almost 10 years now. [1][2] But there is no (truly open) realtime data (e.g. GTFS Realtime or SIRI) ava

VBB has been publishing GTFS (Static/Schedule) data for almost 10 years now. [1][2] But there is no (truly open) realtime data (e.g. GTFS Realtime or SIRI) available because their API [3] - requires signing a draconian contract (e.g. ridiculous liability clauses, no permission to pass the data on in any form), and - API works individual vehicles/trips, so you'd have to poll every single one out there to get the equivalent of a GTFS-RT dataset. There is an unofficial API though [4][5] that is de-facto open, and I have built a tool that pools the data and creates a GTFS-RT feed. [6] [1] https://daten.berlin.de/datensaetze/vbb-fahrplandaten-gtfs https://daten.berlin.de/datensaetze/vbb-fahrplandaten-gtfs [2] https://www.golem.de/news/open-data-verkehrsverbund-berlin-brandenburg-gibt-fahrplan-frei-1304-99026.html https://www.golem.de/news/open-data-verkehrsverbund-berlin-b... [3] https://www.vbb.de/vbb-services/api-open-data/api/ https://www.vbb.de/vbb-services/api-open-data/api/ [4] https://github.com/public-transport/hafas-client/tree/5.25.0/p/vbb https://github.com/public-transport/hafas-client/tree/5.25.0... [5] https://github.com/public-transport/transport-apis/blob/8e057df977e68da0c891ef07a4f236c572dc0d9c/data/de/vbb-hafas-mgate.json https://github.com/public-transport/transport-apis/blob/8e05... [6] https://github.com/derhuerst/berlin-gtfs-rt-server https://github.com/derhuerst/berlin-gtfs-rt-server