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Feed status · checked 2026-08-01

Island Transit

Based on the feed this agency publishes

Service mode Bus

74.9 / 100

unchanged since 2026-07-31

Catalogued in Washington.

Covers 61 daysAccessibility gapsFlexible serviceRealtime not yet published

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 v1.3, validator 8.0.1.

Checked for changes 76 minutes ago; last changed 41 days ago.

Measured 3 of 4 score categories from the agency's own feed.

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 agency's own URL.

Confidence describes how much the pipeline could measure this run, not the feed itself. It never changes the grade.

Top things to fix

Fix 01

Set wheelchair_boarding to 1 (accessible) or 2 (not accessible) for every stop. A field survey can start with the busiest stops.Likely your team

548 of 548 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.

⏱ A column in stops.txt; your scheduling software likely has it.worth about +25 points in its category

Fix 02

Set wheelchair_accessible on every trip. If every vehicle is accessible, this may be one default; otherwise use the value for each trip.Likely your export tool

465 of 465 trips don't say whether the vehicle is wheelchair accessible. Even with accessible stops, riders need to know the bus itself can take them.

⏱ A default or per-trip field in your export.worth about +15 points in its category

Fix 03

Check the flagged stop times for transposed minutes.

Some scheduled trips move faster between stops than a bus can. Usually a typo'd stop time; riders get arrival times no bus can meet.

⏱ A few minutes per flagged trip.worth about +8 points in its category

Trillium produces and hosts this feed as a service. These changes are made on their side: send the fix list to your Trillium contact and they apply it and republish.

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
548 of 548 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
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.

  1. Set wheelchair_boarding to 1 (accessible) or 2 (not accessible) for every stop. A field survey can start with the busiest stops. · Read the fix guide

    Make the change. Trillium produces and hosts this feed as a service. These changes are made on their side: send the fix list to your Trillium contact and they apply it and republish.

    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.

  2. Set wheelchair_accessible on every trip. If every vehicle is accessible, this may be one default; otherwise use the value for each trip. · Read the fix guide

    Make the change. Trillium produces and hosts this feed as a service. These changes are made on their side: send the fix list to your Trillium contact and they apply it and republish.

    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.

  3. Check the flagged stop times for transposed minutes. · Read the fix guide

    Make the change. Trillium produces and hosts this feed as a service. These changes are made on their side: send the fix list to your Trillium contact and they apply it and republish.

    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 61 days.
Published accessibility data
Accessibility information is stated for 0% of stops and 0% of trips. This measures published data, not whether stops or vehicles 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.

Send Trillium a fix request

This feed is produced and hosted by Trillium. Copy this and send it to your Trillium contact; they make the change and republish the feed. Each fix names the validator notice and a guide link.

Score by category

Correctness72.0 / 100

The MobilityData validator flagged 7 kinds of issue across 301 instances (0 error, 255 warning, 46 informational).

Freshness100.0 / 100

Service data covers the next 61 days.

Rider experience59.0 / 100

0% of stops state wheelchair accessibility (0% marked accessible, 0% marked not accessible). This measures what the feed publishes, not whether a stop is physically usable. Fare data is published.

Accessibility0 / 100

0% of stops state accessibility (0% marked accessible). Reflects what the feed states, not verified physical usability.

2 accessibility depth signals

  • 6 route badge(s) pair a color and text color below the WCAG 4.5:1 contrast bar (2, 2C, 412, 4, 6, and more).

    Consider: Adjust route_color or route_text_color so each pair clears 4.5:1. Often switching the text between black and white is enough.

  • 440 stop name(s) use abbreviations or symbols a screen reader may mispronounce, with no spoken form set ("Barracks 8 / CNATT", "Charles Porter Ave at Hangars 5/12", "Hangars 11 / 14 / Air Terminal", and more).

    Consider: Add tts_stop_name with the spoken form, e.g. 'Main Street and Second Avenue', for the affected stops.

Opportunities to strengthen the data, not deductions from the sub-score above. States what the second accessibility lens can check from the feed, not verified physical usability.

FaresLegacy fares

Fares are applied to trips.

Realtime qualityNot yet measured

Not scored yet. Nothing here counts against the grade.

Routes and stops

Each route is drawn once, using the longest shape its trips follow; stops are the dots.

This feed has 548 stops.

Skip to route and stop data

The route and stop data is ready below. Load the map only when you want the geographic view. It uses additional data.

Basemap: OpenFreeMap, © OpenStreetMap contributors. Routes and stops: this agency's GTFS feed.

  • 411C (green)
  • 2C (yellow)
  • 1C (yellow)
  • 411W (green)
  • 3C (blue)
  • 58 (purple)
  • 1 (purple)
  • CC (black)
  • 60 (blue)
  • 412 (orange)
  • 6 (orange)
  • 9 (brown)
  • 2 (teal)
  • 10 (gray)
  • NAS Whidbey Island (teal)
  • 4 (brown)
Routes in Island Transit's feed
RouteTypeLine color
411C Camano Island/Mount VernonBusgreen
2C East Camano ShuttleBusyellow
1C West Camano ShuttleBusyellow
411W Oak Harbor / Marchs Point AnacortesBusgreen
3C Camano Island/StanwoodBusblue
58 South Whidbey ShuttleBuspurple
1 Clinton / Oak HarborBuspurple
CC Clinton CommuterBusblack
60 Clinton - Langley - BayviewBusblue
412 Camano Island/EverettBusorange
6 Oak Harbor/CoupevilleBusorange
9 West Oak HarborBusbrown
2 Ault Field Rd Oak HarborBusteal
10 Central Oak HarborBusgray
NAS Whidbey IslandBusteal
4 Oak Harbor / Deception PassBusbrown
List every stop
  • Barracks 8 / CNATT
  • Charles Porter Ave at Hangars 5/12
  • Hangars 11 / 14 / Air Terminal
  • Hangars 8 / 10
  • Hangar 6 / Fleet Readiness
  • Hangars 7 / 9 TOC
  • Bayview Rd at Marshview Rd
  • Jewett Rd at Sorrel Ln (SB)
  • Jewett Rd at Glendale Rd (SB)
  • Bailey Rd at Cultus Bay Rd (NB)
  • Cultus Bay Rd at Adobe Rd
  • Cultus Bay Rd at French Rd (SB)
  • E Deer Lake Rd at Cultus Bay Rd
  • E Deer Lake Rd at Wintergreen Dr
  • E Deer Lake Rd at Holst Rd
  • Deer Lake Road at Haven Way
  • Deer Lake Rd at Heggeness Rd
  • Maxwelton Rd at South Whidbey Elementary
  • Maxwelton Rd at Castle Park (Southbound)
  • Cama Beach
  • Camano St
  • Wanamaker Rd at Fort Casey Rd
  • Fort Casey Rd at Wanamaker Rd
  • Fort Casey Rd at Patmore Rd (SB)
  • Terry Rd at Fort Casey Rd (WB)
  • Terry Rd at Fort Casey Rd (EB)
  • Jewett Rd at Bailey's Store (SB)
  • SR 20 at Wanamaker Rd
  • SR 525 at Thompson Rd
  • SR 525 at Crawford Rd
  • Engle Rd at Fort Casey State Park (NB)
  • Engle Rd at Coupeville Ferry Terminal
  • SR 20 at Haggen Grocery
  • Clinton Park & Ride at Deer Lake Rd (Northbound)
  • Stanwood Library
  • 271st St NW & 94th Dr NW
  • 271st St NW & 92nd Ave NW
  • 271st St NW & 88th Ave NW
  • Taylor Rd at Hazelwood Dr
  • Libbey Rd at SR 20 (Skymeadow)
  • Glenco St at SE 6th Ave
  • Se 4th Ave at Glencoe St
  • Oak Harbor St at Columbia Dr
  • Oak Harbor Rd at Walmarc Storage
  • Oak Harbor Rd at Gun Club Rd
  • Oak Harbor Rd at Schay Rd
  • Ault Field Rd at Summit Blvd
  • SR 20 at Westgate Homes
  • Heller St at Hillcrest Elementary School
  • Whidbey Ave at Saars Super Saver Foods
  • Crosby Ave at Parkwood Manor
  • Crosby Ave at Cherry Hill
  • Heller St at Wagon Wheel
  • Heller St at Redwing Dr
  • Heller St at SW 6th Kimball Park
  • Heller St at Swantown Ave
  • SE City Beach St at U.S. Postal Service
  • NE 7th Ave at Lexy Manor
  • NE 7th at Click Music
  • Barrington Dr at Walmart
  • Stanwood P&R II
  • Engle Rd at Fort Casey State Park (SB)
  • Engle Rd at Hill Rd
  • Main St at Coupeville High School
  • Goldie Rd (Whidbey Health) at Evergreen St
  • NE 16th at SR 20
  • Commercial Ave at Deer Lake Rd
  • Langley Rd at Ken's Korner (SB)
  • Langley Rd at Soccer Fields
  • Langley Rd at Whidbey Island Winery
  • Camano Ave at Langley Fair Grounds
  • 6th St at Creekside Terrace
  • 2nd St at Star Store
  • Cascade Ave at 4th St
  • Camano Ave at Langley P&R
  • Maxwelton at SR 525
  • SR 525 at Craw Rd
  • SR 525 at Sanford Dr
  • Bayview Rd at Bayview Community Hall
  • Main St at Corey Oil
  • Cultus Bay Rd at E Deer Lake Rd
  • Fort Casey Rd at Patmore Rd (NB)
  • Wannamaker Rd at Ferry Ave
  • Koenig Ln at SR 20
  • Admirals Dr at Rickover Dr
  • E Admirals Dr at SR 525
  • Pioneer Highway
  • NW Madrona Way at SR 20
  • NW Madrona Way at SR 20
  • SR 20 at Morris Rd
  • SR 20 at Parker Rd
  • SR 20 at Island Transit Facility
  • SR 20 at Ryan's House
  • Pioneer at Ace Hardware
  • Admirals Dr at Byrd Dr
  • Admirals Dr at Nimitz Dr
  • SR 20 at Keystone Ave
  • Bayshore at City Beach
  • Humphrey Rd at SR 525
  • Central Ave at Berg Rd
  • Fort Casey Rd at Terry Rd
  • SE 8th Ave and Dock St
  • Monkey Hill Rd. at Ducken Rd. (on request)
  • SR 525 at Dairy Queen
  • SE 8th and Ireland St
  • SR 20 at Coupeville Ferry Terminal
  • Bayview P&R
  • The Goose at Howard Rd
  • Walmart at Erie St (NB)
  • Arnold Rd at Monroe Landing Rd
  • SR 525 at Red Barn
  • SE Camano Dr at Lehman Dr (NB)
  • SR 525 at Eagle's Club
  • SR 525 at Double Bluff
  • SR 20 at Ducken Rd
  • Deception Pass at 76 Station
  • Maxwelton Rd at SW High School
  • West Beach Rd at San Juan St
  • E Frostad Rd at Blazer Ct
  • Madrona at Vine
  • Libbey Rd at SR 20
  • West Beach at Deseret
  • Fort Nugent at Nienhuis
  • Fort Nugent at Union
  • West Beach at Van Dam
  • West Beach at Hastie Lake Rd
  • Fort Nugent at Peacock (Before W. Beach)
  • Fort Nugent & Zylstra
  • Camano at CanKu
  • E Camano Dr at Sandell Rd
  • S Camano Dr at Sunnyshore Dr
  • Elger Bay Rd at Dry Lake Rd
  • E Camano Dr at Broadmoore Rd
  • E Camano Dr at Karen Way
  • E Camano Dr at Sunnyshore Dr
  • E Camano Dr at Dallman Rd
  • SE Camano at W Brejon Way
  • Arrowhead Rd at Camano Center (Utsalady Elementary School)
  • Monticello Dr at Bonnie Lane
  • Southwest Camano at Saratoga Way
  • E North Camano Dr at Terry Heights Ln
  • Arrowhead Rd at Chick Rd (Baker View Ln)
  • SE Camano Dr at Russell Rd
  • SE Camano Dr at Beach Dr
  • SE Camano at Cavalero Rd
  • Sunset Dr at Doubleview Dr
  • Vista Dr at Grandview Ave
  • Northwest Camano at Tara Ln
  • Northwest Camano and Swanson Ln
  • North Camano at Fay Lane
  • North Camano and Arrowhead Rd
  • Southwest Camano and Admiralty Way
  • Maxwelton Rd at Castle Park (Northbound)
  • Lake at Lakewood
  • Lost Lake
  • Monticello Dr at Dry Lake
  • Monticello Dr at SW Camano
  • Camano at Chapman Rd
  • Chapman and Rowe
  • Camano Hill Rd at Chapman Rd
  • Sunset at S.W. Camano
  • North Camano Dr at Maple Grove Rd
  • E Camano Dr at Mountain View Rd
  • SR 525 at Mills Dr
  • SR 525 at Coles Rd
  • SR 525 at Coles Rd
  • Bayview: Bayview Rd at Marshview Ave
  • SR 20 at DeGraff Rd
  • Camano Plaza at E Camano Dr
  • Barrington Dr at Post Office
  • SR 20 and Swantown Ave
  • Monroe Landing at SR 20 (Blue Fox Drive-In)
  • Main St at Whidbey Health Medical Center (NB)
  • Terry Rd at Main St (Coupeville High School WB)
  • SR 525 at Cox Dr
  • SR 525 at Greenbank
  • Smugglers Cove at Westcliff
  • Freeland P&R
  • Freeland at Main St
  • Maple Ridge Senior Condos
  • Main St at Freeland Plaza
  • East Harbor Rd at Freeland Post Office
  • Main St at Maple Ridge
  • Fort Nugent & Zylstra
  • Madrona at Vine
  • Broadway at Madrona
  • SR 20 at Arnold to Coupeville/Oak Harbor
  • Arnold Rd at Sharon St
  • Arnold Rd at Monroe Landing Rd
  • SE Regatta Dr at SE 10th Ave (College/Library)
  • Everett Station
  • EVCC Tower & Broadway
  • EVCC Tower & Broadway
  • I-5 P&R
  • SR 532 at Smith Rd
  • SR 532 at Fox Trot
  • SR 532 at Hiechel Rd
  • SR 532 at Heichel Rd
  • SR 532 at Smith Rd
  • Pioneer Hwy at North Star Cold Storage
  • Bayview Garden on 272nd St at 78th
  • Stanwood High School
  • Church Creek
  • Haggen Grocery
  • Viking Village
  • Frontier Bank
  • Middle School - Camano Island
  • Camano St
  • Camano Island Health System
  • S Camano Dr at Awa Ln
  • S Camano Dr and Broadmoore Rd
  • E Camano Dr at Fairway Dr
  • Camano Dr at Shumway
  • Sunset Dr at Beachwood (Yacht Club) Camano Is
  • Sunset Dr at Vista
  • Huntington Store
  • North Camano at Essex St
  • SR 532 at E Juniper Beach Rd
  • Rite-Aid Stanwood
  • Pioneer Hwy at 300th St NW
  • Pioneer Hwy at Milltown Rd
  • Conway
  • Conway
  • Pioneer Hwy at Milltown Rd
  • Pioneer Hwy at 300th St
  • SR 532 at E Juniper Beach Rd
  • SR 532 at Fox Trot Way
  • Senior Ctr/Pool Jerome St
  • Whidbey-Health (North)
  • Whidbey Ave at Midway
  • Whidbey Ave at Regatta Dr (Opportunity Council)
  • Skagit Valley College/Library
  • I-5 P&R
  • SW 6th Ave at Oak Harbor Intermediate School
  • SR 20 at SW 3rd Ave
  • SR 20 at Kennedy Ln
  • West Beach at Van Dam
  • Maxwelton Rd at Island Christian Academy
  • SR 525 at Campbell Rd (NB)
  • Howard Rd at The Goose
  • SR 525 at Double Bluff Rd
  • SR 525 at Useless Bay
  • SR 525 at Maxwelton Rd (NB)
  • Pioneer Hwy at Les Schwab
  • Langey Rd at Whidbey Island Winery
  • Langley Soccer Fields
  • Perry Dr at Halsey Dr
  • Fort Nugent at Swantown to Oak Harbor
  • Fort Nugent at Stremler Dr
  • Fort Nugent/West Beach
  • and 298 more (see the full list on the map or in the GeoJSON)

Over time

Overall score across the last 4 checks — unchanged since 2026-07-31.

2026-07-25: 74.92026-07-30: 74.92026-07-31: 74.92026-08-01: 74.9
Show the numbers
Overall score by check, with the change from the previous check
CheckScoreChange
2026-07-2574.9 first check
2026-07-3074.9 no change
2026-07-3174.9 no change
2026-08-0174.9 no change

What changed since your last check

  • Correctness no change
  • Freshness no change
  • Rider experience no change

What changed in this feed

Overall grade and score held steady since 2026-07-31.

Same feed file as 2026-07-31; the published zip did not change.

Subscribe to this feed’s changes (Atom) to hear about grade drops in a reader, with no sign-up.

Everything we checked

11 findings, ordered by severity.

Show every finding
  • Warning548 instances

    548 of 548 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.

    Fix: Set wheelchair_boarding to 1 (accessible) or 2 (not accessible) for every stop. A field survey can start with the busiest stops. (A column in stops.txt; your scheduling software likely has it.)

    Finding code: scorecard_wheelchair_boarding_unknown · Read the fix guide · See GTFS Schedule reference (opens the GTFS Schedule reference on an external site)

  • Warning465 instances

    465 of 465 trips don't say whether the vehicle is wheelchair accessible.

    Even with accessible stops, riders need to know the bus itself can take them.

    Fix: Set wheelchair_accessible on every trip. If every vehicle is accessible, this may be one default; otherwise use the value for each trip. (A default or per-trip field in your export.)

    Finding code: scorecard_wheelchair_accessible_unknown · Read the fix guide · See GTFS Schedule reference (opens the GTFS Schedule reference on an external site)

  • Warning146 instances

    Some scheduled trips move faster between stops than a bus can.

    Usually a typo'd stop time; riders get arrival times no bus can meet.

    Fix: Check the flagged stop times for transposed minutes. (A few minutes per flagged trip.)

    Finding code: fast_travel_between_consecutive_stops · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

  • Warning101 instances

    Some stops exist in the feed but no trip ever stops at them.

    Riders may walk to a stop where no bus is scheduled to arrive.

    Fix: Remove retired stops from the export, or add them back to the trips that should serve them. (A review pass in your scheduling software.)

    Finding code: stop_without_stop_time · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

  • Warning30 instances

    30 of 465 trips lack rider-facing destination or direction text.

    When a route has multiple directions or patterns, the route name alone may not tell riders which service is coming.

    Fix: Add the destination, direction, or 'via' label riders actually see to trip_headsign. Do not copy the route name. If the label changes during the trip, use stop_headsign. (Usually one value per route pattern in your scheduling source.)

    Finding code: scorecard_missing_headsigns · Read the fix guide · See GTFS Best Practices (opens GTFS Best Practices on an external site)

  • Warning7 instances

    Fast travel between far stops (flagged by the MobilityData validator).

    See the linked rule for what this affects.

    Fix: Review the rule documentation for 'fast_travel_between_far_stops' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed. (Varies.)

    Finding code: fast_travel_between_far_stops · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

  • Warning1 instance

    Some rider-facing names are in ALL CAPS or all lowercase.

    ALL-CAPS stop and headsign names are harder to read in apps and are read awkwardly by screen readers.

    Fix: Use mixed case for stop names and headsigns (e.g. 'Main St & 2nd Ave', not 'MAIN ST & 2ND AVE'). (Often a bulk fix in your scheduling software.)

    Finding code: mixed_case_recommended_field · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

  • Warning1 instance

    This feed describes flexible (demand-responsive) service but has no booking_rules.txt.

    Riders can see the service area but not how or when to reserve a trip, so they can't actually use the service.

    Fix: Add booking_rules.txt saying how far ahead and how to book (phone, app, or web). (A small file; one rule often covers the whole service.)

    Finding code: scorecard_flex_no_booking_rules · Read the fix guide · See GTFS Schedule reference (opens the GTFS Schedule reference on an external site)

  • Info34 instances

    Some files contain columns that are not part of the GTFS spec.

    Harmless to riders, but apps ignore these columns and they can hide typos in real column names.

    Fix: Check the flagged column names for misspellings of standard GTFS fields; remove them if they are vendor extras. (A quick look at the flagged files.)

    Finding code: unknown_column · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

  • Info8 instances

    The feed includes a file that is not part of the GTFS spec.

    Apps ignore files they don't know, and a stray file can hide a misspelled standard file name.

    Fix: Check the flagged file name for a typo of a standard GTFS file. Remove it if it is a vendor extra. (A quick look at the flagged file.)

    Finding code: unknown_file · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

  • Info4 instances

    Some service dates fall outside the date window set in feed_info.txt.

    feed_info.txt should span every day your service runs, so apps know when the data applies.

    Fix: Widen feed_start_date and feed_end_date to cover all service dates, or fix the dates that fall outside. (Two fields in feed_info.txt, or one export setting.)

    Finding code: service_window_outside_feed_period · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

Beyond the grade

Opportunities that do not change your grade today: fare detail, on-demand service, and deeper accessibility data.

  • Flex zones are published but no booking_rules.txt is present.

    Consider: Add booking_rules.txt with how far ahead and how to reserve (phone, app, or web).

NTD GTFS readiness Ready

Published at a public URL, valid, current, and identified with agency_id: the four feed checks for RY2026 all hold here. Only your own D-10 and P-50 filings make that official; this is a heads-up, not a determination.

Published Ready
Published at a public URL.
Valid Ready
Passes validation with no errors.
Current Ready
Service data covers the next 61 days.
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 465 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

This feed is close to the conformance mark. States wheelchair access on 0% of stops and 0% of trips; the mark needs 90% of each.

Valid Met
Passes validation with no errors.
Current Met
Service data covers the next 61 days.
Accessible Not yet
States wheelchair access on 0% of stops and 0% of trips; the mark needs 90% of each.

In plain words: earn this mark when your feed passes validation, has not expired, and says whether nearly every stop and trip is wheelchair accessible.

A pass credential for a feed that is valid, current, and states wheelchair access on nearly every stop and trip. Accessibility here measures what the feed publishes, not whether a stop is physically usable. How the conformance mark works.

Can riders use it?

Checks beyond structural validation: places where the feed is valid but a rider still could not travel.

  • 101 of 548 boardable stops are never served by any trip. Riders see these stops in apps and on the map but can never catch anything there, which erodes trust in the data. Remove stops no route serves, or add the trips that should call at them.

These do not change the grade. They catch trips with no rideable leg and stops no trip serves, the kind of gap a trip planner trips over.

Clears the Google and Apple Maps four-week coverage bar. This feed has 61 days of service ahead, clearing the four-week (28-day) window Maps asks for. No validator errors either, so riders keep seeing this agency in their trip planners; warnings lower the grade here but do not remove a feed from Maps.

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.

A local transit-data support resource is WSDOT Transportation Data. WSDOT builds and publishes GTFS for Washington transit agencies. This resource supports agencies; it is not a scoring authority.

Correctness 72 / 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 100 / 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 59 / 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.

Show your grade

Put a badge on your agency site or feed README. It updates after each completed scoring check and links back to this scorecard.

Island Transit GTFS data quality grade: C

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Cite this record

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