Call-prep brief · checked 2026-10-16
OTP Thailand (Namtang)
Grade F · 56.2 / 100
Unchanged since 2026-10-15.
For this call: lead with the grade and the three fixes below, then confirm the feed is current and the rider information is complete. Each fix is framed as a next step, not a failure.
What changed since the last check
- Correctness no change
- Freshness no change
- Rider experience no change
Top three things to fix
Review the rule documentation for 'number_out_of_range' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.
Number out of range (flagged by the MobilityData validator). See the linked rule for what this affects.
This is a validator notice, and the validator decides what each instance covers, so no share of the network can be read from it here.
Effort: Varies.
Review the rule documentation for 'foreign_key_violation' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.
Foreign key violation (flagged by the MobilityData validator). See the linked rule for what this affects.
This is a validator notice, and the validator decides what each instance covers, so no share of the network can be read from it here.
Effort: Varies.
Review the rule documentation for 'invalid_url' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.
Invalid url (flagged by the MobilityData validator). See the linked rule for what this affects.
This is a validator notice, and the validator decides what each instance covers, so no share of the network can be read from it here.
Effort: Varies.
Riders and need behind these fixes
- Rider-trip figures come from the United States National Transit Database, which does not cover this feed's country.
- The served-area need overlays cover the United States and Canada, so none of them applies to this feed.
These describe this feed only. They do not rank agencies, and they do not change the grade or the order of the fixes.
Finding handoff
Move one finding to a recheck
Select one finding. Copy the request, make the change in the feed-producing tool, then compare the next complete run.
- Feed evidence
- Number out of range (flagged by the MobilityData validator).
- Next action
- Review the rule documentation for 'number_out_of_range' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.
- Recheck
- Publish the changed feed at the same URL. On the next complete, comparable scorecard run, confirm that this finding is no longer reported.
Copy handoff text
- Feed evidence
- Foreign key violation (flagged by the MobilityData validator).
- Next action
- Review the rule documentation for 'foreign_key_violation' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.
- Recheck
- Publish the changed feed at the same URL. On the next complete, comparable scorecard run, confirm that this finding is no longer reported.
Copy handoff text
- Feed evidence
- Invalid url (flagged by the MobilityData validator).
- Next action
- Review the rule documentation for 'invalid_url' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.
- Recheck
- Publish the changed feed at the same URL. On the next complete, comparable scorecard run, confirm that this finding is no longer reported.
Copy handoff text
Key facts
- Feed URL
- https://namtang-api.otp.go.th/download/namtang-gtfs.zip
- Last checked
- 2026-10-16
- Service window
- 76 days of service data remain. Last service date 2026-12-31.
- Feed version
- 20261015
- Location
- Krung Thep Maha Nakhon, Thailand
A data-quality and completeness read to support an agency conversation. Not an official compliance determination. Rubric v1.4, validator 8.0.1.