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Feed status · checked 2026-07-09

Suffolk County Transit

Based on the feed this agency publishes

56.7 / 100

up 0.1 since 2026-07-08 · F → F

Ahead of 47% of all tracked agencies and 57% of large agencies. Operates in New York.

Covers 26838 daysAccessibility gapsNo realtime feed

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 19 hours ago; last changed 19 hours ago.

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

How we measured this

Confidence in this measurement: medium.

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

2283 of 2283 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 02

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

2378 of 2378 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).

Fix 03

Add fare_attributes.txt (or Fares v2 files) with your fare structure. If your service is fare-free, ask to have it marked fare-free instead.

The feed contains no fare information. Riders see 'fare unknown' in trip planners and can't budget their trip; visitors are most affected.

⏱ A small file for most flat-fare systems.worth about +15 points

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. 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. Self-check a feed before you publish.

  2. 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. Self-check a feed before you publish.

  3. Add fare_attributes.txt (or Fares v2 files) with your fare structure. If your service is fare-free, ask to have it marked fare-free instead. · 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. Self-check a feed before you publish.

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

Correctness48.8 / 100

The MobilityData validator flagged 10 kinds of issue across 861 instances (0 error, 849 warning, 12 informational).

Freshness85.0 / 100

Service data covers the next 26838 days.

Rider experience45.0 / 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 not published.

Accessibility0 / 100

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

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.

Skip to route and stop data

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

Routes in Suffolk County Transit's feed
RouteTypeLine color
1 01 - Amityville RR to HalesiteBusred
12 12 - Farmingdale State College to Bay ShoreBusred
10 10 - Amityville RR to Babylon RRBusteal
4 04 - Amityville RR to Smith Haven MallBusred
6 06 - Walt Whitman Shops to Patchogue RRBusred
7 07 - Bay Shore to Northport VA Medical CenterBusred
3 03 - Babylon RR to Walt Whitman ShopsBusteal
5 05 - Babylon RR to Smith Haven MallBusred
77Y 77Y - Patchogue RR to East YaphankBusteal
51 51 - Patchogue RR to Port Jefferson StationBusred
2 02 - Amityville RR to Patchogue RRBusred
58 58 - Brentwood RR to Riverhead RRBusteal
62 62 - Hauppauge to Riverhead RRBusteal
55 55 - Patchogue RR to Port Jefferson StationBusteal
77 77 - Patchogue RR to BellportBusteal
17 17 - East Islip to HauppaugeBusred
56 56 - Kings Park Manor to Smithtown RRBusteal
52B 52B - Central Islip RR to Gordon HeightsBusteal
66 66 - Patchogue RR to Riverhead RRBusred
52A 52A - Central Islip RR to Gordon HeightsBusteal
15 15 - Babylon RR to Robert Moses State ParkBusteal (no shape in feed)
11 11 - Bay Shore to HauppaugeBusred
80 80 Riverhead CirculatorBusteal
92 92 East Hampton RR to Orient Point Ferry DockBusteal
53 53 - Patchogue RR to Port Jefferson StationBusteal

This feed has 2283 stops.

List every stop
  • Nicolls Rd/Buchanan Ave
  • Grand Blvd/Carlls Path
  • E Industry Ct/Grand Blvd
  • Jericho Tpk/Rural Pl
  • Bay Shore Rd/Bay Shore Ave
  • Grand Blvd/Marcus Blvd
  • E Suffolk Ave/Gibbs Rd
  • Vets Hwy/New Hwy
  • Belmont Ave/Kenyon Ave
  • New York Ave/Edison Dr
  • Deer Park Ave/S Service Rd
  • E Industry Ct/Saxwood St
  • Bay Shore Rd/Deer Park Ave
  • E Jericho Tpk/Dix Hills Rd
  • NYS 109/Arnold Ave
  • Larkfield Rd/Allerton Ave
  • Crooked Hill Commons
  • Vets Hwy/Orville Dr N
  • Fifth Ave/Bailey Ave
  • Smith St/NYS 110
  • E Jericho Tpk/Melville Rd
  • NYS 109/Herzel Blvd
  • Brentwood LIRR (5S)
  • Middle Country Rd/Huber Pl
  • Wicks Rd/Mindres Ave
  • Brook Ave/E William St
  • Middle Country Rd/Prospect Ave
  • Fifth Ave/Spur Dr N
  • Suffolk Ave/Fourth St
  • Nichols Rd/Smithtown Blvd
  • NYS 110/Allen Blvd
  • Larkfield Rd/5th Ave
  • Dixon Ave/Overland Ave
  • Arnold Ave/Anchor Ct
  • Brook Ave/Mackay Rd
  • Church St/Valley Forge Dr
  • Pine Aire Dr/N Thompson Dr
  • Straight Path/Levey Blvd
  • New Hwy/Smith St
  • Deshon Dr/Marcus Dr
  • Albany Ave/Harrison Ave
  • Deer Park Ave/Acorn St
  • NYS 110/Mill Ln
  • Dixon Ave/31st St
  • Bayport Gardens
  • Dixon Ave/Great Neck Rd
  • NYS 110/Depot Rd
  • E Jericho Tpk/Deer Park Rd
  • Vets Hwy/Johnson Ave
  • Howells Rd/Fifth Ave
  • Vets Hwy/Washington Ave
  • Howells Rd/Richland Blvd
  • Vets Hwy/Harned Rd
  • Clinton Ave/Henry Pl
  • Dixon Ave/Ferraris St
  • Straight Path/Herzel Blvd
  • Second Ave/Union Blvd
  • Deer Park LIRR
  • Suffolk Ave/Fulton St
  • Rabro Dr/Ranick Rd
  • Dixon Ave/Deforest St
  • Nichols Rd/Smithtown Blvd
  • E Main St/Hemlock Ln
  • Mount Ave/Cumberbach St
  • Suffolk County North Complex (W)
  • Nichols Rd/Browns Rd
  • Old Willets Path/Creek Rd
  • New York Ave/Albany St
  • S 2nd St/Dunton Ave
  • NYS 110/Amityville Rd
  • Walt Whitman Shops (6)
  • Great East Neck Rd/Montauk Hwy
  • Half Hollow Rd/Lone Hill Pl
  • Straight Path/Bedell St
  • Deer Park Ave/Scott Ave
  • Great East Neck Rd/Lit
  • Middle Country Rd/Southern Blvd
  • Manor Ln/Howells Rd
  • New Hwy/Albany Ave
  • Straight Path/35th St
  • Larkfield Rd/Netcong Pl
  • Old Nichols Rd/N Connecting Rd
  • Crooked Hill Rd/Sagtikos Pkwy
  • Albany Ave/Great Neck Rd
  • Caleb Smith State Park
  • Commack Rd/Rensselaer Dr
  • Deer Park Ave/Straight Path
  • Commack Rd/New Hwy
  • NYS 110/Church St
  • Old Nichols Rd/Johnson Ave
  • Great East Neck Rd/Little East Neck Rd
  • Deer Park Ave/Ryder Ave
  • Straight Path/Heathcote Rd
  • E Suffolk Ave/Carleton Ave
  • Vets Hwy/Harned Rd
  • Straight Path/Levey Blvd
  • Johnson Ave/Carlough Rd
  • Grand Blvd/W 9th St
  • Long Island Ave/Straight Path
  • Pine Aire Dr/5th Ave
  • Brook Ave/Mildred St
  • Park Ave/Little East Neck Rd N
  • Straight Path/Mathews Ave
  • Nicolls Rd/Commack Rd
  • Straight Path/18th St
  • Larkfield Rd/5th Ave
  • Albany Ave/Schleigel Blvd
  • Mount Ave/Essex St
  • NYS 109/7th St
  • Grand Blvd/The Arches Cir
  • Old Willets Path/Mobrey Ln
  • Old Willets Path/Motor Pkwy
  • Deer Park Ave/Poplar St
  • Albany Ave/Schleigel Blvd
  • NYS 110/Louden Ave
  • Albany Ave/Sunrise Hwy (S)
  • NYS 110/Baylis Rd
  • Old Willets Path/Creek Rd
  • NYS 109/Wellwood Ave
  • Deer Park Ave/Half Hollow Rd
  • Jericho Tpk/Hobson Ave
  • E Industry Ct/Saxwood St
  • Albany Ave/Sunrise Hwy (N)
  • Belmont Ave/Kenyon Ave
  • NYS 109/1st Ave
  • Deer Park Ave/Burnage Ln
  • Old Willets Path/W Jericho Tpk
  • Community College Dr/Campus Rd
  • Half Hollow Rd/Fox Ln
  • E Jericho Tpk/Longfellow Dr
  • Bay Shore Rd/Deer Park Ave
  • Wicks Rd/Bradley St
  • Brentwood Rd/Third Ave
  • Suffolk County North Complex (W)
  • Grand Blvd/W 13th St
  • E Jericho Tpk/Depot Rd
  • NYS 110/Great Neck Rd (S)
  • Wavely Ave/W Roe Blvd
  • Crooked Hill Rd/St Andrews Dr
  • Crooked Hill Rd/Henry St
  • NYS 110/S Service Rd
  • Deer Park Ave/Scott Ave
  • NYS 110/W 18th St
  • E Suffolk Ave/Lowell Ave
  • Wyandanch LIRR
  • Half Hollow Rd/Pettit Dr
  • Calebs Path/Franklin Ave
  • Johnson Ave/Aero Rd
  • Crooked Hill Rd/McNair St
  • Fifth Ave/Candlewood Rd
  • Vets Hwy/13th Ave
  • Rodeo Dr/Wilshire Blvd
  • Jericho Tpk/Town Line Rd
  • E Jericho Tpk/Dix Hills Rd
  • Mount Ave/Birch St
  • Fifth Ave/Spur Dr S
  • Middle Country Rd/Franklin Dr
  • Pine Aire Dr/N Thompson Dr
  • Union Blvd/Third Ave
  • Calebs Path/Lexington Ave
  • E Main St/NYS 111
  • Vets Hwy/Orville Dr
  • Executive Dr/Rodeo Dr
  • Straight Path/Bedell St
  • Grand Blvd/W 4th St
  • Belmont Ave/Sheffield Ave
  • Deer Park Ave/Pell Ave
  • Straight Path/18th St
  • Nicolls Rd/Prospect Pl
  • Rodeo Dr/Wilshire Blvd
  • Deer Park Ave/Half Hollow Rd
  • Commack Rd/Nicolls Rd
  • Vets Hwy/Lincoln Ave
  • Nob Hill Condominiums
  • Jericho Tpk/Daly Rd
  • Bay Shore Rd/Commack Rd
  • Candlewood Rd/Bishop Rd
  • Waverly Ave/W 1st St
  • Old Nichols Rd/Halsey St
  • Middle Country Rd/Doyle St
  • Straight Path/Lincoln Ave
  • Church St/Lincoln Ave
  • Albany Ave/Banbury Ct
  • Main Ave/N 23rd St
  • N Carll Ave/Park Ave
  • NYS 109 (89)
  • Commack Rd/Jericho Tpk
  • Park Ave/N Carll Ave
  • Mount Ave/Birch St
  • Nichols Rd/Motor Pkwy
  • Commack Rd/Motor Pkwy
  • W Suffolk Ave/Oakland Ave
  • NYS 110/Schwab Rd
  • NYS 110/Boston Pl
  • Larkfield Rd/Allerton Ave
  • Sunrise Hwy S Service Rd/Church St
  • Bay Shore Rd/Bluebell Ln
  • Middleville Rd/Rinaldo Rd
  • Community College Dr/Campus Rd
  • Albany Ave/Rainbow Ln
  • NYS 110/Brefni St
  • Fifth Ave/Drexel Dr
  • Colonial Springs Rd/Little East Neck Rd
  • E Jericho Tpk/Elwood Rd
  • Half Hollow Rd/Pettit Dr
  • Deer Park Ave/Macniece Pl
  • Vets Hwy/5th Ave
  • W Main St/Redwood Ln
  • Ruland Rd/Baylis Rd
  • Huntington LIRR
  • Commack Rd/Fairfield Way
  • NYS 110/Sweet Hollow Rd
  • Wheeler Rd/Rabro Dr
  • Calebs Path/Nostrand Ave1
  • Jericho Tpk/Valmont Ave
  • NYS 110/Ritter Ave
  • NYS 110/Sterling Pl
  • NYS 109 (50-110)
  • Straight Path/16th St
  • E Jericho Tpk/New York Ave
  • Larkfield Rd/Burr Rd
  • Brook Ave/E 3rd Ave
  • Deer Park Ave/McCormick St
  • Broadway Ave/Church St
  • Albin Ave/Arnold Ave
  • Deer Park Ave/Edmunton Dr
  • North Dr/County Center Rd
  • W Main St (291)
  • Union Blvd/Clinton Ave
  • Middle Country Rd/Lake Ave
  • Deer Park Ave/McCormick St
  • Smith Haven Mall (4, 5)
  • Suffolk Ave/Fulton St
  • Middleville Rd/Normandy Dr
  • Holbrook Rd/Waverly Ave
  • NYS 109/Platt Ave
  • E Jericho Tpk/Ware Ave
  • Pine Aire Dr/Peck Ave
  • Deer Park Ave/New Jersey St
  • NYS 110/W Hills Rd
  • Dixon Ave/Deforest St
  • NYS 110/Lyons St
  • Carman Rd/Melrose Rd
  • Old Willets Path/Motor Pkwy
  • Northport VA Med Cen
  • Park Ave/Little East Neck Rd N
  • Albany Ave/Rainbow Ln
  • Suffolk Ave/Reese St
  • Little East Neck Rd N/Berkshire Rd
  • Heartland Blvd/Mercedes Way
  • and 2033 more (see the full list on the map or in the GeoJSON)

Over time

Overall score across the last 21 checks — up 0.1 since 2026-07-08.

2026-06-19: 56.62026-06-20: 56.62026-06-21: 56.62026-06-22: 56.62026-06-23: 56.62026-06-24: 56.62026-06-25: 56.62026-06-26: 56.62026-06-27: 56.62026-06-28: 56.62026-06-29: 56.62026-06-30: 56.62026-07-01: 56.62026-07-02: 56.62026-07-03: 56.62026-07-04: 56.62026-07-05: 56.72026-07-06: 56.62026-07-07: 56.62026-07-08: 56.62026-07-09: 56.7
Show the numbers
Overall score by check, with the change from the previous check
CheckScoreChange
2026-06-1956.6 first check
2026-06-2056.6 no change
2026-06-2156.6 no change
2026-06-2256.6 no change
2026-06-2356.6 no change
2026-06-2456.6 no change
2026-06-2556.6 no change
2026-06-2656.6 no change
2026-06-2756.6 no change
2026-06-2856.6 no change
2026-06-2956.6 no change
2026-06-3056.6 no change
2026-07-0156.6 no change
2026-07-0256.6 no change
2026-07-0356.6 no change
2026-07-0456.6 no change
2026-07-0556.7 up 0.1
2026-07-0656.6 down 0.1
2026-07-0756.6 no change
2026-07-0856.6 no change
2026-07-0956.7 up 0.1

What changed since your last check

What changed in this feed

Overall score rose 0.1 points since 2026-07-08.

Same feed file as 2026-07-08; 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

Beyond the grade

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

NTD certification readiness Ready

Published at a public URL, valid, and current: the three things the NTD GTFS requirement asks of a feed all hold here. Only your own D-10 certification makes 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 26838 days.
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 2378 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. 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 26838 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.

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 26838 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 49 / 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 85 / 100
The FTA National Transit Database expectation of a valid, current feed. Google Transit: an expired calendar drops the agency from Maps.
Rider experience 45 / 100
GTFS Best Practices for rider-facing fields. MobilityData grading: 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 live badge on your agency site or feed README. It updates daily and links back to this scorecard.

Suffolk County Transit 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/suffolk-county-transit-3115/2026-07-09.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.