Call-prep brief · checked 2026-10-17
Island Explorer (Acadia National Park)
Grade D · 66.2 / 100
Unchanged since 2026-10-16.
For this call: lead with the grade and the three fixes below, then confirm the feed is current and the NTD details line up. 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
Publish the calendar for the current or next service period and set feed_info feed_end_date past it.
This seasonal service has no published calendar. The last one ended 5 day(s) ago. Between service periods this is normal. But if buses are running with no published calendar, trip planners show nothing.
This one is about the feed as a whole, so there is no share of it to count.
Effort: One export when the next period's schedule is set.
Set wheelchair_boarding to 1 (accessible) or 2 (not accessible) for every stop. A field survey can start with the busiest stops.
63 of 63 stops don't say whether a wheelchair user can board there. Riders who use wheelchairs can't plan a trip when accessibility is marked 'unknown'; apps show no information at all.
Fixing this covers all 63 stops in the feed.
Effort: A column in stops.txt; your scheduling software likely has it.
Set wheelchair_accessible on every trip. If every vehicle is accessible, this may be one default; otherwise use the value for each trip.
482 of 482 trips don't say whether the vehicle is wheelchair accessible. Even with accessible stops, riders need to know the bus itself can take them.
Fixing this covers all 482 trips in the feed.
Effort: A default or per-trip field in your export.
Riders and need behind these fixes
- This feed carries no National Transit Database ID, so annual rider-trips are not known for it.
- Maine as a whole measures moderate on transit need. That is a statewide reading, not one for this feed's service area. Source: US Census ACS 5-year 2022, statewide overlay, as of 2026-10-12.
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
- This seasonal service has no published calendar. The last one ended 5 day(s) ago.
- Next action
- Publish the calendar for the current or next service period and set feed_info feed_end_date past it.
- 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
- 63 of 63 stops don't say whether a wheelchair user can board there.
- Next action
- Set wheelchair_boarding to 1 (accessible) or 2 (not accessible) for every stop. A field survey can start with the busiest stops.
- 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
- 482 of 482 trips don't say whether the vehicle is wheelchair accessible.
- Next action
- Set wheelchair_accessible on every trip. If every vehicle is accessible, this may be one default; otherwise use the value for each trip.
- 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
NTD GTFS readiness: Not ready
Resolve this before you certify on the D-10. Service data expired 5 days ago, so FTA would find the link out of date.
- Published Ready
- Published at a public URL.
- Valid Ready
- Passes validation with no errors.
- Current Not ready
- Service data expired 5 days ago, so FTA would find the link out of date.
- agency_id provided Ready
- agency.txt provides agency_id. For RY2026, keep one stable value for each NTD reporter represented in the feed and crosswalk each value on the P-50 form.
agency_id equals NTD ID (optional): Not checked yet. This feed provides agency_id. For RY2026, keep one stable value for each NTD reporter represented in the feed and crosswalk it on the P-50 form. The value does not need to equal the five-digit NTD ID; we do not have that ID on file, so the optional equality comparison is not checked yet.
Key facts
- Feed URL
- https://www.nps.gov/external-resources/gtfs/acad/island-explorer.zip
- Last checked
- 2026-10-17
- Service window
- Feed has expired. Last service date 2026-10-12.
- Feed version
- 20260727
- Location
- Maine
Part of the Maine portfolio: see where this agency sits among the other feeds in that group before the call.
A data-quality and completeness read to support an agency conversation. Not an official compliance determination. Rubric v1.4, validator 8.0.1.