One station, several carriers
Unlike a bus stop, a station is rarely tied to a single network. The same station may see regional trains, commuter rail, long-distance services and sometimes a tram-train, each described in a separate dataset, published by a different authority on the French national open transport data platform (transport.data.gouv.fr).
We merge those sources to rebuild a station’s service, but the merge is not always perfect: when two datasets name or locate the same station differently, it can appear twice, each entry carrying only part of the services. This is a known limitation of aggregating open data, not a deliberate omission.
