Feed status · checked 2026-10-07
Ship Island Excursions
Based on the feed source on file; publisher ownership is not verified
Service mode Ferry
down 0.4 since 2026-10-06
Cataloged in Mississippi.
A data-quality and completeness lens to help an agency improve its GTFS feed. Not an official compliance determination from any transit program. New to this? How to read your scorecard. Interactive view of this scorecard. Rubric v1.4, validator 8.0.1.
Checked for changes 39 minutes ago; last changed 45 days ago.
Measured 3 of 4 score categories from the feed URL on file (publisher not verified).
How we measured this
Confidence in this measurement: medium.
- Realtime quality was not measured this run. It does not count against the grade.
- The feed was downloaded from the configured feed URL. Publisher ownership of that URL is not verified.
Confidence describes how much the pipeline could measure this run, not the feed itself. It never changes the grade.
About this feed
Ship Island Excursions’s published feed lists 1 ferry route, 16 scheduled trips and 2 stops. Its service dates run from 2026-03-14 through 2026-11-01. The published file last changed on 2026-10-06.
Top things to fix
Re-export with a validity window that reaches at least 60 days out.Likely your export tool
Service data runs out in 25 day(s). When the calendar runs out, trip planners stop showing this agency. Fixing it now is calmer than after riders notice.
This one is about the feed as a whole, so there is no share of it to count.
⏱ One export setting.worth about +55 points in its category
Remove past service periods the next time you export the feed.Likely your export tool
Some service calendars in the feed have already ended. Expired calendars are dead weight and can hide real schedule problems from your staff and vendors.
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.
⏱ One setting in most export tools.worth about +4 points in its category
Riders and need behind these fixes
- This feed carries no National Transit Database ID, so annual rider-trips are not known for it.
- Mississippi as a whole measures high 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 2026-10-05.
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.
- Finding
- Fix 01 in Top things to fix: its feed evidence and the requested change.
- 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
- Finding
- Fix 02 in Top things to fix: its feed evidence and the requested change.
- 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
How to make and check these changes
Check the result on the published feed. Read the guide, make the change in your tool, and use the next comparable run to see whether the finding is still reported. Only an action or ticket record can attribute who made the change.
Fix 01 · Read the fix guide for scorecard_feed_expiring_soon
Make the change. Make this change in whatever tool produces your feed, then re-export.
Check the result. The next scorecard run checks this finding again. If a comparable check no longer reports it, the feed's clearance log records that result. This confirms feed state, not who made the change. Self-check a feed before you publish.
Fix 02 · Read the fix guide for expired_calendar
Make the change. Make this change in whatever tool produces your feed, then re-export.
Check the result. The next scorecard run checks this finding again. If a comparable check no longer reports it, the feed's clearance log records that result. This confirms feed state, not who made the change. Self-check a feed before you publish.
Rider view: what this feed publishes
A quick read of rider-facing information in this feed.
- Schedule visibility
- The feed's last published service date is in 25 days.
- Published accessibility data
- Accessibility information is stated for 100% of terminals and 100% of trips. This measures published data, not whether terminals or vessels are physically usable.
- Fare information
- Fare information is published using GTFS Fares v1.
- Realtime information
- Realtime-feed availability and live-arrival coverage are not known from this scorecard.
Important: This does not rate service reliability. Riders should confirm current service alerts, fares, and accessibility accommodations with the transit operator before traveling.
Ungraded capability read
Ferry data profile
A ferry-specific view of what this GTFS feed publishes. Schedule measurements use ferry routes and trips only; fare and realtime facts are labeled as whole-feed. Unknown values are not treated as no.
- Ferry service
- 1 routes · 16 trips
- Terminal structure
- 2 ferry boarding locations; no parent-station hierarchy is published.
- Terminal access
- Not applicable: no ferry boarding location is linked to a parent station, so stop_access is not permitted here.
- Published accessibility
- 100% of ferry boarding locations publish a value; 100% of all ferry boarding locations explicitly say allowed (2 of 2). Unstated values remain unknown. 100% of ferry trips publish a value; 100% of all ferry trips explicitly say allowed (16 of 16). Unstated values remain unknown. This reports published values, not verified physical usability.
- Bicycles
- 100% of ferry trips publish a value; 25% of all ferry trips explicitly say allowed (4 of 16). Unstated values remain unknown.
- Cars
- Unknown: none of the 16 ferry trips publish cars_allowed.
- Fares
- Whole feed: applied fare data is published using GTFS Fares v1.
- Realtime
- Whole feed: no GTFS-Realtime endpoints are configured in this scorecard.
Descriptive only. This profile does not change the grade or verify vessels, terminal facilities, vehicle carriage, fares, or accessibility in the real world. Field meanings follow the GTFS Schedule reference.
Send your vendor a fix request
You may not control the GTFS export yourself. Copy this and send it to whoever runs your scheduling software export. It names each fix with the validator notice and a guide link.
Send the agency a note
Supporting this agency? Copy this and email it to them. It names what lapsed, why it matters to riders, and the one setting to change.
Score by category
The MobilityData validator flagged 1 kind of issue across 3 instances (0 error, 3 warning, 0 informational).
Service data runs out in 25 day(s). Publish an updated feed soon or riders will lose trip planning.
100% of terminals state wheelchair accessibility (100% marked accessible, 0% marked not accessible). This measures what the feed publishes, not whether a terminal is physically usable. Fare data is published.
100% of terminals state accessibility (100% marked accessible). Reflects what the feed states, not verified physical usability.
Fares are applied to trips.
Not scored yet. Nothing here counts against the grade.
Routes and terminals
Each route is drawn once, using the longest shape its trips follow; terminals are the dots.
This feed has 2 terminals.
The route and terminal data is ready below. Load the map only when you want the geographic view. It uses additional data.
Basemap: OpenFreeMap, © OpenStreetMap contributors. Routes and terminals: this agency's GTFS feed.
- Ferry Service to Ship Island (teal)
| Route | Type | Line color |
|---|---|---|
| Ferry Service to Ship Island | Ferry | teal |
List every terminal
- Gulfport
- Ship Island
Over time
Overall score across the last 2 checks — down 0.4 since 2026-10-06.
Show the numbers
| Check | Score | Change |
|---|---|---|
| 2026-10-06 | 84.1 | first check |
| 2026-10-07 | 83.7 | down 0.4 |
What changed since your last check
- Correctness no change
- Freshness down 1.6
- Rider experience no change
Feed history
Every check on record for this feed, grouped by the published file, newest first. A new file means the published zip changed. Grades from earlier rubric versions are shown with their rubric and are not comparable with today’s grade or the trend above.
| Checked | Published file | Service dates through | Grade at the time |
|---|---|---|---|
| 2026-10-06 to 2026-10-07 (2 checks) | cb517c4839b4 | 2026-11-01 | Current rubric: see the trend above |
| 2026-08-06 to 2026-08-07 (2 checks) | 63aca3dc0581 | 2026-11-01 | A, 98.2 under rubric 1.3, an earlier scoring contract; not comparable with today’s grade |
| 2026-06-19 to 2026-07-10 (21 checks) | 63aca3dc0581 | 2026-11-01 | A, 98.2 under rubric 1.1, an earlier scoring contract; not comparable with today’s grade |
What changed in this feed
Overall score fell 0.4 points since 2026-10-06.
Same feed file as 2026-10-06; the published zip did not change.
Subscribe to this feed’s changes (Atom) to hear about grade drops and export changes in a reader, with no sign-up.
Everything we checked
2 findings, ordered by severity.
Show every finding
- Warning3 instances
Some service calendars in the feed have already ended.
Expired calendars are dead weight and can hide real schedule problems from your staff and vendors.
Fix: Remove past service periods the next time you export the feed. (One setting in most export tools.)
Finding code: expired_calendar · Read the fix guide for expired_calendar · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
- Warning1 instance
Service data runs out in 25 day(s).
When the calendar runs out, trip planners stop showing this agency. Fixing it now is calmer than after riders notice.
Fix: Re-export with a validity window that reaches at least 60 days out. (One export setting.)
Finding code: scorecard_feed_expiring_soon · Read the fix guide for scorecard_feed_expiring_soon · See GTFS Best Practices (opens GTFS Best Practices on an external site)
NTD GTFS readiness Needs attention
This feed is close to NTD-ready. Service data runs out in 25 days; renew before you certify.
- Published Ready
- Published at a public URL.
- Valid Ready
- Passes validation with no errors.
- Current Needs attention
- Service data runs out in 25 days; renew before you certify.
- 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 your 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.
- shapes.txt covers your trips Ready
- All 16 trips have a shape in shapes.txt.
In plain words: if you report to the federal transit database, you have to publish a working, up-to-date feed, provide a stable agency_id for each represented reporter, and confirm the feed and P-50 crosswalk each year. This box is a heads-up; your filings are the official check.
A readiness signal mapping this feed to the FTA National Transit Database GTFS requirement (Report Year 2023 onward: a public, valid, current feed, certified annually on the D-10). For RY2026, each represented reporter needs a stable agency_id, unique within the feed and crosswalked to its five-digit NTD ID on P-50; the values do not need to be equal. FTA also requires shapes.txt in the published GTFS: Full Reporters from Report Year 2025, and Reduced, Rural, and Tribal Reporters from Report Year 2026. Not an official determination; your certification is the official check.
Conformance mark Not yet
One requirement remains for this feed to earn the conformance mark. Service data runs out in 25 days; renew to qualify.
- Valid Met
- Passes validation with no errors.
- Current Not yet
- Service data runs out in 25 days; renew to qualify.
- Accessible Met
- States wheelchair access on 100% of terminals and 100% of trips.
In plain words: earn this mark when your feed passes validation, has not expired, and says whether nearly every terminal and trip is wheelchair accessible.
A pass credential for a feed that is valid, current, and states wheelchair access on nearly every terminal and trip. Accessibility here measures what the feed publishes, not whether a terminal is physically usable. How the conformance mark works.
At risk for the Google and Apple Maps four-week coverage bar. This feed has 25 days of service left. Maps needs at least four weeks (28 days) of upcoming service, so your agency will fall out of trip planners soon. Re-export with a longer calendar.
How this agency maps to the standards
The scorecard is a data-quality lens, not a compliance determination. Its universal references describe good GTFS and useful rider information. Useful references here are GTFS Schedule Best Practices, GTFS-Realtime Best Practices, MobilityData grading scheme, Google Transit publication guidance, FTA National Transit Database GTFS requirement. Read the full standards crosswalk.
- Correctness 96 / 100
- GTFS Schedule best practices, checked by the MobilityData validator. MobilityData grading covers stop locations, route names, and colors. Google Transit requires a feed to pass validation for publication. FTA NTD readiness also checks that the published feed is valid.
- Freshness 42 / 100
- GTFS Schedule best practices call for a dataset that stays current. An expired calendar can remove service from Google Transit and other rider trip planners. FTA NTD readiness also checks that the published feed is current.
- Rider experience 100 / 100
- GTFS Best Practices for rider-facing fields. MobilityData grading covers stop names and headsigns.
- Realtime quality Not yet published
- GTFS-Realtime best practices: a stable URL, high uptime, and frequent updates.
Part of the Mississippi portfolio: the same scorecards for every feed we track in that group, on one free page.
For programs that support several agencies
This scorecard and the board one-pager for Ship Island Excursions are free, and they stay free. If you support several agencies, as a state program, a technical-assistance center, a feed vendor, or a consultancy, you can buy the program report bundle. It puts this agency's board report in one archive with the reports for the other agencies you support, and each cover carries your program's name, logo, and accent color.
The report for Ship Island Excursions uses the same numbers as this page: grade B (83.7 out of 100) as of the check on 2026-10-07, its category scores, its top fixes, and its score at each check.
One bundle, up to 25 agencies: $149, paid once, delivered within 2 business days or refunded. Other plans, including a monthly refresh, are on the bundle page.
See a sample bundle report: a real agency's current grade, with placeholder branding.
A purchase buys no influence over grades, methodology, or which agencies are listed. The grade on this page comes from the check on 2026-10-07, scored with rubric v1.4 and MobilityData gtfs-validator 8.0.1. Based on the feed source on file; publisher ownership is not verified. Read how the grade is calculated.
Similar feeds in Mississippi
Other scorecards in Mississippi, starting with the same kind of service at a similar size. Listed for comparison, not ranked.
Show your grade
Put this badge on your agency site or feed README. It updates after each completed scoring check, shows the date of that check, and links back to this scorecard. When there is no current score it says so instead of showing an old one.
Prefer a shields.io style? Point a dynamic endpoint badge at the published badge.json.
Cite this record
This page updates on every check. The record below does not: it is the dated file this grade came from, published at https://gtfsscorecard.org/data/artifacts/gulf-islands-national-seashore-3210/2026-10-07.json and never overwritten, pinning the grade, category scores, rubric version, validator version, reader archive profile, and the scored feed's sha256 as they stood on 2026-10-07. Use it in a board packet, a regulatory filing, or a research citation instead of linking the live page, whose content will differ on your next visit.
Citing the tool itself rather than one agency's record? Use the repo's CITATION.cff.