Error when reading Paris IDFM_gtfs

Hi smart GH people,

I am trying to test GH GTFS on Ile de France Area using the IDFM_gtfs.zip (Download here : https://data.iledefrance.fr/explore/dataset/horaires-prevus-sur-les-lignes-de-transport-en-commun-dile-de-france-gtfs/files/736ca2f956a1b6cc102649ed6fd56d45/download/)

When creating the graph, I have a lot of warnings (see below) that seems to be linked to some discrepencies on the gtfs data. On the resultant GH PT routing, there are a lot missing lines and stations, so the routing is working but creapy. Do you have an idea on what could be wrong with this data ?

Many Thanks

2020-01-10 10:39:48.070 [main] INFO c.conveyal.gtfs.model.Entity$Loader - Loading GTFS table stop_times from stop_times.txt
2020-01-10 10:39:50.082 [main] INFO c.conveyal.gtfs.model.Entity$Loader - Record number 500,0k
2020-01-10 10:39:52.080 [main] INFO c.conveyal.gtfs.model.Entity$Loader - Record number 1,0M
2020-01-10 10:39:53.823 [main] INFO c.conveyal.gtfs.model.Entity$Loader - Record number 1,5M
2020-01-10 10:39:55.843 [main] INFO c.conveyal.gtfs.model.Entity$Loader - Record number 2,0M
2020-01-10 10:39:57.970 [main] INFO c.conveyal.gtfs.model.Entity$Loader - Record number 2,5M
2020-01-10 10:40:00.218 [main] INFO c.conveyal.gtfs.model.Entity$Loader - Record number 3,0M
2020-01-10 10:40:02.689 [main] INFO c.conveyal.gtfs.model.Entity$Loader - Record number 3,5M
2020-01-10 10:40:04.454 [main] ERROR com.conveyal.gtfs.GTFSFeed - calendar line 0: This table is required by the GTFS specification but is missing.
2020-01-10 10:40:04.454 [main] ERROR com.conveyal.gtfs.GTFSFeed - transfers line 19: Number -1.0 outside of acceptable range [0.0,2.147483647E9].
2020-01-10 10:40:04.454 [main] ERROR com.conveyal.gtfs.GTFSFeed - transfers line 28: Number -1.0 outside of acceptable range [0.0,2.147483647E9].
2020-01-10 10:40:04.455 [main] ERROR com.conveyal.gtfs.GTFSFeed - transfers line 31: Number -1.0 outside of acceptable range [0.0,2.147483647E9].
2020-01-10 10:40:04.455 [main] ERROR com.conveyal.gtfs.GTFSFeed - transfers line 59: Number -1.0 outside of acceptable range [0.0,2.147483647E9].

Hi,

For the calendar error you need a calendar.txt file in your GTFS (see https://developers.google.com/transit/gtfs/reference#calendartxt).

As for the transfers error, you are using -1.0 which is not an acceptable value.

HTH,

Math

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