Data quality

The data is updated daily, covering the next three weeks.

All RER A and B timetables are transmitted by the SNCF.

The timetables of the SNCF lines include the adaptations made during planned works, as well as the substitutions made by bus (e.g. a bus journey will be offered if a section is cut off due to works).

The timetables of the RATP lines do not generally include adaptations made during planned works (e.g.  Closure of a metro station).

Unlike the files from the GTFS, the API data takes into account the Local Traffic Prohibitions (ITL) that sometimes exist on some OPTILE bus lines.