unknown_file: GTFS validation rule (archive structure) Info
A file is present in the feed ZIP but is not part of the GTFS Schedule, GTFS-Flex, or DRT-Booking spec. It will be silently ignored by downstream consumers.
What the rule checks
A file is present in the feed ZIP but is not part of the GTFS Schedule, GTFS-Flex, or DRT-Booking spec. It will be silently ignored by downstream consumers.
Severity: information
An information notice marks a feature of the GTFS that does not affect its conformity. It helps to understand the data and asks for no correction.
Where it applies
The rule applies to the structure of the GTFS archive: the files it holds, their headers, their encoding and the shape of their rows.
Finding and correcting it
Open the GTFS in GTFS Express. Reading is free, and the validation, by the MobilityData validator and the rules of GTFS Express itself, lists the occurrences of unknown_file with the file and rows involved. The correction is made in a draft, by hand or from a brief, with the licence: the corrected GTFS is validated again before it is delivered, and the change can be undone.
In the MobilityData validator
The MobilityData GTFS validator uses the same code, unknown_file. Its documentation describes each rule: MobilityData validator rules.