← All agencies

Feed status · checked 2026-07-09

Greater Portland Metro Bus

Based on the feed this agency publishes

51.4 / 100

unchanged since 2026-07-08

Ahead of 38% of all tracked agencies and 49% of large agencies. Operates in Maine.

Covers 30 daysAccessibility gaps

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 v1.1, validator 8.0.1.

Checked for changes 18 minutes ago; last changed 3 hours ago.

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

How we measured this

Confidence in this measurement: high.

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

Check the trip updates endpoint with your AVL vendor; it should return a fresh GTFS-Realtime protobuf on every request.

The trip updates realtime feed failed during sampling. When this feed is down, riders see scheduled times presented as if they were live.

⏱ Usually a vendor support ticket.worth about +8 points

Agencies here usually clear this within about 1 week (based on 11 observed fixes).

Fix 02

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

1314 of 1314 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

Fix 03

Set wheelchair_accessible on every trip (most small-agency fleets are 100% accessible, so this is often a single default).Likely your export tool

1345 of 1345 trips don't say whether the vehicle is wheelchair accessible. Even with accessible stops, riders need to know the bus itself can take them.

⏱ Often one default setting in your export.worth about +15 points

Agencies here usually clear this within about 1 week (based on 5 observed fixes).

Close the loop on each fix. Read the guide, make the change in your tool, and let the next run verify it — the scorecard shows the fix; the agency publishes it.

  1. Check the trip updates endpoint with your AVL vendor; it should return a fresh GTFS-Realtime protobuf on every request. · Read the fix guide

    Make the change. Make this change in whatever tool produces your feed, then re-export.

    Prove it cleared. The next scorecard run re-checks this automatically and, once it is gone, mints a dated receipt. See this feed's dated fix log.

  2. 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. Make this change in whatever tool produces your feed, then re-export.

    Prove it cleared. The next scorecard run re-checks this automatically and, once it is gone, mints a dated receipt. See this feed's dated fix log.

  3. Set wheelchair_accessible on every trip (most small-agency fleets are 100% accessible, so this is often a single default). · Read the fix guide

    Make the change. Make this change in whatever tool produces your feed, then re-export.

    Prove it cleared. The next scorecard run re-checks this automatically and, once it is gone, mints a dated receipt. See this feed's dated fix log.

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.

Score by category

Correctness75.5 / 100

The MobilityData validator flagged 5 kinds of issue across 2544 instances (0 error, 2543 warning, 1 informational).

Freshness35.0 / 100

Service data covers the next 30 days.

Rider experience20.7 / 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 not published.

Accessibility0 / 100

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

3 accessibility depth signals

  • 2 route badge(s) pair a color and text color below the WCAG 4.5:1 contrast bar (5, 7).

    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.

  • 1224 stop name(s) use abbreviations or symbols a screen reader may mispronounce, with no spoken form set ("WESTBROOK ST + UPPER COACH RD", "WESTBROOK ST + LOWER COACH RD", "COTTAGE RD + SOULE ST", and more).

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

  • This feed models stations or entrances but has no pathways.txt and levels.txt.

    Consider: Add pathways.txt connecting entrances, platforms, and elevators, and levels.txt for each floor, so the step-free route is described.

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.

Realtime quality64.1 / 100

Sampled 9 times outside service hours: 2 of 3 feeds healthy; 0.0% of vehicles on their route.

Routes and stops

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

Skip to route and stop data

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

Routes in Greater Portland Metro Bus's feed
RouteTypeLine color
1 Congress StreetBusteal
2 Forest Avenue - RivertonBusyellow
21 SMCC - Downtown PortlandBusgreen
24A Maine Mall - Main StreetBuspink
24B Maine Mall via BroadwayBusorange
3 Westbrook CrosstownBuswhite
4 Westbrook - Brighton AveBusgray
5 Maine Mall - Park AvenueBusgreen
7 Falmouth - Downtown Portland - JetportBusred
8 Peninsula LoopBuspink
9A North Deering via Stevens AvenueBusorange
9B North Deering via Washington AvenueBusgreen
BRZ Portland - Yarmouth - Freeport - BrunswickBusteal
HSK Portland - Westbrook - GorhamBusteal

This feed has 1314 stops.

List every stop
  • MYRTLE ST + BROWN ST
  • BROADWAY + LINTON
  • 425 BROADWAY
  • ANTHOINE ST + HAMILTON ST
  • ANTHOINE ST + OSBORNE AVE
  • ANTHOINE ST + BROADWAY
  • ANTHOINE ST + COLUMBUS AVE
  • ANTHOINE ST + HAMILTON ST
  • BENJAMAN PICKETT ST + ADAMS ST
  • BROADWAY + BENJAMAN PICKETT ST
  • FRANKLIN ST + FORE ST NB
  • BROADWAY + Broadway
  • BROADWAY + Broadway (Shelter)
  • BROADWAY + BURNHAM ST
  • BROADWAY + BURNHAM
  • BROADWAY + ELM ST
  • BROADWAY + ELM ST
  • BROADWAY + EVANS ST
  • BROADWAY + Amato's
  • BROADWAY + FELLOWS ST
  • FRANKLIN ST + FORE ST SB
  • BROADWAY + LINCOLN ST
  • BROADWAY + MUSSEY ST
  • BROADWAY + N KELSEY ST
  • BROADWAY + KENNETH ST
  • BROADWAY + ORLANDO ST
  • BROADWAY + PREBLE ST
  • BROADWAY + PRIDES ST
  • BROADWAY + SCAMMAN ST
  • BROADWAY + SO KELSEY ST
  • BROWN ST + WALKER ST
  • BROADWAY + STROUT ST
  • BROADWAY + 740 BROADWAY
  • BROADWAY + CHRISTIAN SCHOOL
  • BROADWAY + KENNETH ST
  • BROADWAY + LINTON ST
  • BROADWAY + MAHONEY MS
  • BROADWAY + 747 BROADWAY
  • BROADWAY + ANTHOINE
  • BROADWAY + ANTHOINE ST
  • BROADWAY + CLEMONS ST
  • BROWN ST + WALKER ST
  • BROADWAY + KELLY ST
  • BROADWAY + KELLEY ST
  • BROADWAY + LINCOLN ST
  • BROADWAY + STANFORD ST
  • BROADWAY + FELLOWS ST
  • BROADWAY + PRIDES ST
  • BROADWAY + STROUT ST
  • BROADWAY + CASH CORNER
  • BROADWAY + CASH CORNER
  • MAIN ST + CASH CORNER
  • MAIN ST + CASH CORNER
  • EVANS ST + COMMUNITY CENTER
  • CONGRESS ST + FOREST AVE
  • COTTAGE RD + SOULE ST
  • COTTAGE RD + HOMESTEAD AVE
  • EVANS ST + BONNYBRIER RD
  • EVANS ST + BONNYBRIER RD
  • EVANS ST + CUMBERLAND RD
  • EVANS ST + CUMBERLAND RD
  • EVANS ST + HIGHLAND AVE
  • EVANS ST + EVANS COMM. CENTER
  • FODEN RD + DARLING AVE
  • FODEN RD + WESTERN AVE
  • 1001 GALLERY BLVD
  • GALLERY BLVD + LOWES
  • GALLERY BLVD + GALLERY WALMART
  • GANNETT DR
  • 295 GANNETT DR
  • 207 GANNETT DR
  • 119 GANNETT DR
  • PHILBROOK AVE + HANNAFORD
  • HIGH ST + SPRING ST
  • HIGHLAND + SOUTH PORTLAND HS
  • HIGHLAND + LIGHTHOUSE DAY SCH
  • HIGHLAND AVE + T-LEDGE DR
  • HIGHLAND AVE + Nazarine Church
  • HIGHLAND AVE + T-Ledge Condos
  • KALER RD + SPURWINK AVE
  • LINCOLN ST + CHAPMAN ST
  • LINCOLN ST + BODGE ST
  • LINCOLN ST + CHURCH ST
  • LINCOLN ST
  • CASCO BAY LINES
  • LINCOLN + 390 LINCOLN ST
  • LINCOLN ST + CHAPMAN ST
  • MAIN ST + COX ST
  • MAIN ST + SKILLINGS ST
  • MAIN ST + FROSWICK AVE
  • MAIN + WILSON
  • MAIN ST + MARDALE AVE
  • ALLEN AVE + 50 ALLEN AVE
  • MAIN ST + MARDALE AVE
  • MAIN ST + WESTBROOK ST
  • MAIN ST + WESTBROOK ST
  • MAIN ST + ALTON ST
  • MAIN + RIDGELAND AVE
  • MAIN + SKILLINGS
  • MAIN ST + RIDGELAND AVE
  • HANCOCK ST + THAMES ST
  • MAINE MALL RD + Macys
  • MAINE MALL JC PENNEY
  • MAINE MALL RD + IHOP
  • MAINE MALL RD + Goodwill
  • THOMAS ST + Millcreek Hub
  • CONGRESS ST + CENTER ST
  • OCEAN ST + PARROT ST
  • COMMERCIAL ST + INDIA ST
  • OCEAN ST + DERBY RD
  • OCEAN ST + SAWYER ST
  • OCEAN ST + SIMMONS ST
  • CONGRESS ST + FRANKLIN ST
  • OCEAN ST + STANLEY ST
  • CONGRESS ST + ELM ST
  • PHILBROOK AVE + Hampton Inn
  • PILLSBURY ST + COTTAGE RD
  • PILLSBURY + LOWELL
  • PREBLE ST + FORT RD
  • PREBLE ST + FRANKLIN TER
  • PREBLE ST + STANFORD ST
  • Garage
  • PREBLE ST + PREBLE ST EXT
  • PREBLE ST + HIGH ST
  • WESTBROOK ST + Redbank
  • RUNNING HILL + 82 RUNNING HIL
  • RUNNINGHILL RD + TARGET
  • RUNNINGHILL RD + SABLE OAKS DR
  • SAWYER + BROADWAY
  • SAWYER + Ferry Village
  • SAWYER ST + MARSH RD
  • SAWYER + MOSHER ST
  • CONGRESS ST + BRAMHALL ST
  • SAWYER ST + CORMIER RD
  • SAWYER + STERLING
  • SAWYER + FRONT ST
  • SAWYER ST + MITCHELL RD
  • FORT RD + SMCC
  • SPRING ST + PAYNE RD
  • SPRING ST + 55 SPRING ST
  • SPRING ST + 25 SPRING ST
  • TEMPLE ST + FORE ST
  • TEMPLE ST + FREE ST
  • E ST + WATERMAN DR
  • WATERMAN DR + E ST
  • WESTBROOK ST + WESTCOTT RD
  • WESTBROOK ST + LOWER COACH RD
  • WESTBROOK ST + UPPER COACH RD
  • CONGRESS ST + 1577 CONGRESS ST
  • WESTBROOK ST + WESTCOTT RD
  • WESTBROOK ST + Landry Village
  • WESTBROOK + TEMPLE BETH HAM
  • WESTBROOK ST + LOWER COACH RD
  • WESTBROOK ST + UPPER COACH RD
  • WESTERN AVE + LONG CREEK DRIVE
  • WESTERN + LONG CREEK MED CEN
  • WESTERN AVE + 371 WESTERN AVE
  • WESTERN AVE + LONG CREEK DR
  • CONGRESS ST + CASCO ST
  • WESTERN AVE + FODEN RD
  • PREBLE ST + Willard Square
  • YORK ST + PLEASANT ST
  • YORK ST + STATE ST
  • BRICKHILL AVE + Brickhill
  • BRICKHILL AVE + HERON COVE DR
  • BRICKHILL AVE + TOWNHOUSE DR
  • ANTHOINE + 36 ANTHOINE
  • HIGHLAND + MSW FACILITY RD
  • HIGHLAND + CRESTVIEW
  • HIGHLAND + ALFRED ST
  • HIGHLAND + WINTERBERRY ST
  • HIGHLAND + OPP WHISP. PINES
  • HIGHLAND + WHISPERING PINES
  • HIGHLAND + OPP SO PORTLAND HS
  • P.S. FACILITY TP
  • ALLEN AVE + 97 ALLEN AVE
  • OCEAN + D ST
  • OCEAN + D ST
  • OCEAN + A ST
  • OCEAN + A ST
  • WATERMAN + B ST
  • WATERMAN + B ST
  • WATERMAN + E ST
  • PORTLAND CITY HALL
  • CONGRESS ST + DEERING AVE
  • CONGRESS ST + WALKER ST
  • CONGRESS ST + MITTON ST
  • ALLEN AVE + ABBOTT ST
  • PORTLAND PUBLIC LIBRARY
  • CONGRESS ST + FOREST AVE
  • CONGRESS + UNION SQUARE PLAZA
  • CONGRESS ST + FREDERIC ST
  • CONGRESS ST + FROST ST
  • CONGRESS ST + GARRISON ST
  • CONGRESS ST + GARRISON ST
  • AUBURN ST + 92 AUBURN ST
  • CONGRESS ST + MAINE MED
  • CONGRESS ST + HAMPSHIRE ST
  • CONGRESS ST + HOBART ST
  • CONGRESS ST + HOBART ST
  • CONGRESS ST + HUTCHINS DR
  • CONGRESS ST + INDIA ST
  • CONGRESS ST + INDIA ST
  • ALLEN AVE + 320 ALLEN AVE
  • CONGRESS ST + 1945 CONGRESS ST
  • CONGRESS ST + EXCHANGE ST
  • CONGRESS ST + 1189 CONGRESS ST
  • AUBURN ST + BARTLEY ST
  • CONGRESS ST + MELLEN ST
  • CONGRESS ST + 206 CONGRESS ST
  • CONGRESS ST + PARK ST
  • CONGRESS ST + PARK ST
  • AUBURN ST + 206 AUBURN ST
  • CONGRESS ST + SHERIDAN ST
  • CONGRESS ST + FOREST ST/MMC
  • CONGRESS ST + 690 CONGRESS ST
  • CONGRESS ST + STATE ST
  • CONGRESS ST + BOODY ST
  • CONGRESS ST + UNUM WEST
  • CONGRESS ST + 1717 CONGRESS ST
  • CBHS OUTBOUND
  • CONGRESS ST + WASHINGTON AVE
  • CONGRESS ST + WALDO ST
  • CONGRESS ST + 1412 CONGRESS ST
  • CONGRESS ST + WEYMOUTH ST
  • CONGRESS ST + WEYMOUTH ST
  • CONGRESS ST + WHITNEY ST
  • CONGRESS ST + SEWALL ST
  • AUBURN ST + HILLSIDE ST
  • CUMBERLAND AVE + 255 CUMBER.
  • CUMBERLAND AVE + ELM ST
  • CBHS INBOUND
  • HARBOR TERRACE
  • DANFORTH ST + HIGH ST
  • DANFORTH ST + SCHOOL ST
  • DANFORTH ST + STATE ST
  • BRIDGTON RD + EAST BRIDGE ST
  • EAST BRIDGE ST + CARLSON ST
  • EAST BRIDGE ST + CONSTITUTION
  • AUBURN ST + JACKSON ST
  • EAST BRIDGE ST + INDEPENDENCE
  • CONGRESS ST + EMERSON ST
  • EASTERN PROM + WILSON ST
  • EASTERN PROMENADE + TURNER ST
  • EASTERN PROM + VESPER ST
  • EASTERN PROMENADE + WALNUT ST
  • AUBURN ST + JACKSON ST
  • ELM ST + LANCASTER ST
  • EMERY ST + SPRUCE ST
  • WEST FALMOUTH HANNAFORD
  • and 1064 more (see the full list on the map or in the GeoJSON)

Over time

Overall score across the last 20 checks — unchanged since 2026-07-08.

2026-06-19: 38.82026-06-20: 38.52026-06-21: 45.62026-06-22: 47.12026-06-23: 47.12026-06-24: 47.12026-06-25: 47.12026-06-26: 47.12026-06-27: 45.72026-06-28: 51.12026-06-29: 52.52026-06-30: 52.52026-07-01: 47.12026-07-02: 52.52026-07-04: 51.72026-07-05: 51.32026-07-06: 52.52026-07-07: 52.32026-07-08: 51.42026-07-09: 51.4
Show the numbers
Overall score by check, with the change from the previous check
CheckScoreChange
2026-06-1938.8 first check
2026-06-2038.5 down 0.3
2026-06-2145.6 up 7.1
2026-06-2247.1 up 1.5
2026-06-2347.1 no change
2026-06-2447.1 no change
2026-06-2547.1 no change
2026-06-2647.1 no change
2026-06-2745.7 down 1.4
2026-06-2851.1 up 5.4
2026-06-2952.5 up 1.4
2026-06-3052.5 no change
2026-07-0147.1 down 5.4
2026-07-0252.5 up 5.4
2026-07-0451.7 down 0.8
2026-07-0551.3 down 0.4
2026-07-0652.5 up 1.2
2026-07-0752.3 down 0.2
2026-07-0851.4 down 0.9
2026-07-0951.4 no change

What changed since your last check

What changed in this feed

Overall grade and score held steady since 2026-07-08.

The feed file was re-published since 2026-07-08.

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

What changed over time

On 2026-06-19 this feed started at grade F. On 2026-06-20 feed expired. On 2026-06-21 feed entered the expiry window (30 days of service left). On 2026-06-20 it cleared scorecard_feed_expiring_soon. As of 2026-07-09 it holds grade F.

A plain-language history of this feed, newest first.

Everything we checked

Some fixes we can make for you

These are the safe mechanical fixes, applied to a copy of your feed. They change only what is certain and leave everything else untouched. Review the diff before you publish.

Run it yourself on your own copy of the feed: scorecard autofix <feed.zip> --out corrected.zip

NTD certification readiness Needs attention

This feed is close to NTD-ready. Service data runs out in 30 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 30 days; renew before you certify.
agency_id matches your NTD ID Not checked yet
Setting your GTFS agency_id to your five-digit NTD ID is an optional way to line a feed up with its National Transit Database record. FTA links the two on your P-50 form, so it is not a required feed change. We don't have your NTD ID on file, so this is not checked yet.
shapes.txt covers your trips Ready
All 1345 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 and confirm it once a year. This box is a heads-up on whether yours looks ready; it is not the official sign-off.

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). Aligning agency_id with your NTD ID lets the feed line up with your NTD record; the July 2025 final rule links the two on the P-50 form rather than requiring that feed change, and 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. Service data runs out in 30 days; renew to qualify. 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 Not yet
Service data runs out in 30 days; renew to qualify.
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.

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.

Realtime reliability

The realtime feed responded on 100.0% of 106 checks over the last 16 days, with 3s median lag.

Sampled on a schedule between full scores, so this tracks uptime and freshness over time rather than at a single moment.

Prediction accuracy

0.0% of reported vehicle positions sat on or near the published route shape.

From the last full realtime sample: how far live arrival predictions sat from the schedule, and whether vehicle positions fell on the route. These feed the realtime score; they change no other category.

Clears the Google and Apple Maps four-week coverage bar. This feed has 30 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

A data-quality lens, not a compliance determination. Each category shows this feed's score and the standards it relates to: the FTA National Transit Database GTFS requirement, the MobilityData grading scheme, and the Google Transit gate. Read the full standards crosswalk.

Correctness 76 / 100
GTFS Schedule best practices, checked by the MobilityData validator. MobilityData grading: stop locations, route names and colors. Google Transit: a feed must pass validation to stay in Maps.
Freshness 35 / 100
The FTA National Transit Database expectation of a valid, current feed. Google Transit: an expired calendar drops the agency from Maps.
Rider experience 21 / 100
GTFS Best Practices for rider-facing fields. MobilityData grading: stop names and headsigns.
Realtime quality 64 / 100
GTFS-Realtime best practices: a stable URL, high uptime, and frequent updates.

Show your grade

Put a live badge on your agency site or feed README. It updates daily and links back to this scorecard.

Greater Portland Metro Bus GTFS data quality grade: F

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/greater-portland-metro-bus-2642/2026-07-09.json and never overwritten, pinning the grade, category scores, rubric version, validator version, and the scored feed's sha256 as they stood on 2026-07-09. Use it in a board packet, an NTD narrative, 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.