← All agencies

Feed status · checked 2026-10-21

OASA Athens rail transport (metro, electric railway, tram)

Based on the official feed source on file

Service mode Tram + Metro

49.7 / 100

unchanged since 2026-10-20

Cataloged in Attikí, Greece.

Feed expiredAccessibility gapsRealtime not yet published

Source feed: https://data.gov.gr/dataset/4e897a75-975a-4ce7-af65-f32ea01f93b9/resource/5e3858ee-d9ba-48c2-9015-744ea160976d/download/stasy_gtfs.zip Version history on the Mobility Database

Metro, ISAP electric railway and tram schedule for the OASA group, operated by STASY S.A.

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 36 minutes ago; last changed 89 days ago.

Measured 3 of 4 score categories from the official feed URL on file.

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 official feed URL on file.

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

About this feed

OASA Athens rail transport (metro, electric railway, tram)’s published feed lists 5 routes (tram / light rail and subway / metro), 75,730 scheduled trips and 252 stops. The published file has not changed since our first check on 2026-07-23.

Top things to fix

Fix 01

Re-export the feed with a calendar that reaches further out. Set feed_end_date in feed_info.txt past your next service change.Likely your export tool

Service data ended 51 day(s) ago. When the calendar runs out, trip planners stop showing this agency even though the transit vehicles are still running. Riders are told the service does not exist.

This one is about the feed as a whole, so there is no share of it to count.

⏱ Usually one export setting; export on a schedule so it never lapses again.worth about +100 points in its category

Fix 02

Add feed_info.txt with feed_start_date and feed_end_date to your export.Likely your export tool

feed_info.txt is missing its start/end dates (the file itself is absent) Apps and this scorecard can't warn anyone before the feed goes stale without stated validity dates.

This one is about the feed as a whole, so there is no share of it to count.

⏱ Two fields, set once in export settings.worth about +15 points in its category

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.

This one is about the feed as a whole, so there is no share of it to count.

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

Riders and need behind these fixes

  • Rider-trip figures come from the United States National Transit Database, which does not cover this feed's country.
  • The served-area need overlays cover the United States and Canada, so none of them applies to this feed.

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
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. Fix 01 · Read the fix guide for scorecard_feed_expired

    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. See this feed's finding-clearance log.

  2. Fix 02 · Read the fix guide for scorecard_missing_feed_info_dates

    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. See this feed's finding-clearance log.

  3. Fix 03 · Read the fix guide for scorecard_no_fare_data

    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. See this feed's finding-clearance log.

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 was 51 days ago.
Published accessibility data
Accessibility information is stated for 48.8% of stops and 49.4% of trips. This measures published data, not whether stops or vehicles are physically usable.
Fare information
No fare information is published in the feed.
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 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

Correctness87.0 / 100

The MobilityData validator flagged 3 kinds of issue across 18222 instances (0 error, 90 warning, 18132 informational).

Freshness0.0 / 100

Service data ended 51 day(s) ago. Trip planners have likely already dropped this feed.

Rider experience37.1 / 100

49% of stops state wheelchair accessibility (49% marked accessible, 0% marked not accessible). This measures what the feed publishes, not whether a stop is physically usable. Fare data is not published.

Accessibility49 / 100

49% of stops state accessibility (49% 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

This feed has no route shapes, so the map shows its stops only.

This feed has 252 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.

Routes in OASA Athens rail transport (metro, electric railway, tram)'s feed
RouteTypeLine color
T7 ΓΡΑΜΜΗ 7 ΤΡΑΜTram / light railred (no shape in feed)
T6 ΓΡΑΜΜΗ 6 ΤΡΑΜTram / light railred (no shape in feed)
M3 ΓΡΑΜΜΗ 3Subway / metroblue (no shape in feed)
M1 ΓΡΑΜΜΗ 1Subway / metroblue (no shape in feed)
M2 ΓΡΑΜΜΗ 2Subway / metroblue (no shape in feed)
List every stop
  • 34ου Συντάγματος
  • ΑΓ. ΔΗΜΗΤΡΙΟΣ
  • ΧΑΛΑΝΔΡΙ
  • ΧΑΛΑΝΔΡΙ
  • Ελλήνων Ολυμπιονικών
  • Ελλήνων Ολυμπιονικών
  • ΧΟΛΑΡΓΟΣ
  • ΧΟΛΑΡΓΟΣ
  • ΗΛΙΟΥΠΟΛΗ
  • ΗΛΙΟΥΠΟΛΗ
  • ΗΡΑΚΛΕΙΟ
  • ΗΡΑΚΛΕΙΟ
  • ΑΓ. ΔΗΜΗΤΡΙΟΣ
  • ΕΙΡΗΝΗ
  • ΕΙΡΗΝΗ
  • ΕΙΡΗΝΗ
  • Καλαμάκι
  • ΚΑΛΛΙΘΕΑ
  • ΚΑΛΛΙΘΕΑ
  • Καλαμάκι
  • ΚΑΝΤΖΑ
  • ΚΑΝΤΖΑ
  • ΚΑΤΩ ΠΑΤΗΣΙΑ
  • ΑΓΙΟΣ ΕΛΕΥΘΕΡΙΟΣ
  • ΚΑΤΩ ΠΑΤΗΣΙΑ
  • Γήπεδο ΚαραΙσκάκη
  • Κασομούλη
  • Κασομούλη
  • ΚΑΤΕΧΑΚΗ
  • ΚΑΤΕΧΑΚΗ
  • ΚΑΤ
  • ΚΑΤ
  • ΚΕΡΑΜΙΚΟΣ
  • ΚΕΡΑΜΙΚΟΣ
  • ΑΓΙΟΣ ΕΛΕΥΘΕΡΙΟΣ
  • ΚΗΦΙΣΙΑ
  • ΚΗΦΙΣΙΑ
  • Κέντρο Ιστιοπλοϊας
  • Κέντρο Ιστιοπλοϊας
  • Κολυμβητήριο (Γλύφαδα)
  • Κολυμβητήριο (Γλύφαδα)
  • ΚΟΡΥΔΑΛΛΟΣ
  • ΚΟΡΥΔΑΛΛΟΣ
  • ΚΟΡΩΠΙ
  • ΚΟΡΩΠΙ
  • ΑΓΙΟΣ ΙΩΑΝΝΗΣ
  • Καλλιθέα
  • Καλλιθέα
  • Λαμπράκη
  • Λουτρά Αλίμου
  • Λουτρά Αλίμου
  • Σ. ΛΑΡΙΣΗΣ
  • Σ. ΛΑΡΙΣΗΣ
  • Μαρίνα Αλίμου
  • Μαρίνα Αλίμου
  • ΜΑΝΙΑΤΙΚΑ
  • ΑΓΙΟΣ ΙΩΑΝΝΗΣ
  • ΜΑΝΙΑΤΙΚΑ
  • Μικράς Ασίας
  • Μεγάλου Αλεξάνδρου
  • Μεγάλου Αλεξάνδρου
  • ΜΕΓΑΡΟ ΜΟΥΣΙΚΗΣ
  • ΜΕΓΑΡΟ ΜΟΥΣΙΚΗΣ
  • ΜΕΤΑΞΟΥΡΓΕΙΟ
  • ΜΕΤΑΞΟΥΡΓΕΙΟ
  • Μηδείας - Μυκάλης
  • Μηδείας - Μυκάλης
  • ΑΓΙΟΣ ΝΙΚΟΛΑΟΣ
  • ΜΟΝΑΣΤΗΡΑΚΙ
  • ΜΟΝΑΣΤΗΡΑΚΙ
  • ΜΟΝΑΣΤΗΡΑΚΙ
  • ΜΟΝΑΣΤΗΡΑΚΙ
  • ΜΟΣΧΑΤΟ
  • ΜΟΣΧΑΤΟ
  • Μοσχάτο
  • Μοσχάτο
  • Μουσσών
  • Μουσσών
  • ΑΓΙΟΣ ΝΙΚΟΛΑΟΣ
  • ΝΕΑ ΙΩΝΙΑ
  • ΝΕΑ ΙΩΝΙΑ
  • ΝΕΡΑΤΖΙΩΤΙΣΣΑ
  • ΝΕΡΑΤΖΙΩΤΙΣΣΑ
  • Νέο Φάληρο
  • Νέο Φάληρο
  • ΝΙΚΑΙΑ
  • ΝΙΚΑΙΑ
  • Ν.ΚΟΣΜΟΣ
  • Ν.ΚΟΣΜΟΣ
  • ΑΓΙΑ ΠΑΡΑΣΚΕΥΗ
  • Νέος Κόσμος
  • Νέος Κόσμος
  • ΝΟΜΙΣΜΑΤΟΚΟΠΕΙΟ
  • ΝΟΜΙΣΜΑΤΟΚΟΠΕΙΟ
  • ΟΜΟΝΟΙΑ
  • ΟΜΟΝΟΙΑ
  • ΟΜΟΝΟΙΑ
  • ΟΜΟΝΟΙΑ
  • ΠΑΛΛΗΝΗ
  • ΠΑΛΛΗΝΗ
  • ΑΓΙΑ ΠΑΡΑΣΚΕΥΗ
  • ΠΑΝΕΠΙΣΤΗΜΙΟ
  • ΠΑΝΕΠΙΣΤΗΜΙΟ
  • Παναγίτσα
  • Παναγίτσα
  • Πλατεία Δεληγιάννη
  • Παλαιό Δημαρχείο
  • Παλαιό Δημαρχείο
  • ΠΕΥΚΑΚΙΑ
  • ΠΕΥΚΑΚΙΑ
  • ΠΕΙΡΑΙΑΣ
  • Αχιλλέως
  • 1η Αγίου Κοσμά
  • ΠΕΙΡΑΙΑΣ
  • ΠΕΡΙΣΤΕΡΙ
  • ΠΕΡΙΣΤΕΡΙ
  • ΠΕΡΙΣΣΟΣ
  • ΠΕΡΙΣΣΟΣ
  • Πλατεία Εσπερίδων
  • Πλατεία Εσπερίδων
  • ΠΕΤΡΑΛΩΝΑ
  • ΠΕΤΡΑΛΩΝΑ
  • Πάρκο Φλοίσβου
  • 1η Αγίου Κοσμά
  • Πάρκο Φλοίσβου
  • Παραλία Γλυφάδας
  • Παραλία Γλυφάδας
  • Πικροδάφνη
  • Πικροδάφνη
  • Πικροδάφνη
  • ΠΕΙΡΑΙΑΣ
  • ΠΕΙΡΑΙΑΣ
  • ΠΕΙΡΑΙΑΣ
  • Πλατεία Κατράκη
  • 2η Αγίου Κοσμά
  • Πλατεία Κατράκη
  • Πλατεία Ιπποδαμείας
  • Δ. ΠΛΑΚΕΝΤΙΑΣ
  • Δ. ΠΛΑΚΕΝΤΙΑΣ
  • ΠΑΝΟΡΜΟΥ
  • ΠΑΝΟΡΜΟΥ
  • Πλατεία Βεργώτη
  • Πλατεία Βεργώτη
  • ΣΕΦ (Νέο Φάληρο)
  • ΣΕΠΟΛΙΑ
  • 2η Αγίου Κοσμά
  • ΣΕΠΟΛΙΑ
  • Σκυλίτση
  • ΣΥΝΤΑΓΜΑ
  • ΣΥΝΤΑΓΜΑ
  • ΣΥΝΤΑΓΜΑ
  • ΣΥΝΤΑΓΜΑ
  • ΣΥΓΓΡΟΥ-ΦΙΞ
  • ΣΥΓΓΡΟΥ-ΦΙΞ
  • Σύνταγμα (Κέντρο)
  • ΑΚΡΟΠΟΛΗ
  • ΤΑΥΡΟΣ
  • ΤΑΥΡΟΣ
  • ΘΗΣΕΙΟ
  • ΘΗΣΕΙΟ
  • Τροκαντερό
  • Τροκαντερό
  • Τζιτζιφιές
  • Τζιτζιφιές
  • ΑΓΙΑ ΒΑΡΒΑΡΑ
  • ΑΓΙΑ ΒΑΡΒΑΡΑ
  • ΑΚΡΟΠΟΛΗ
  • Βουλιαγμένης
  • Βουλιαγμένης
  • ΒΙΚΤΩΡΙΑ
  • ΒΙΚΤΩΡΙΑ
  • Βούλα
  • Ζάππειο
  • Ζάππειο
  • Ζέφυρος
  • Ζέφυρος
  • ΑΛΙΜΟΣ
  • ΑΛΙΜΟΣ
  • ΑΓΙΑ ΜΑΡΙΝΑ
  • ΑΓΙΑ ΜΑΡΙΝΑ
  • Αχιλλέως
  • ΜΑΡΟΥΣΙ
  • ΜΑΡΟΥΣΙ
  • ΑΜΠΕΛΟΚΗΠΟΙ
  • ΑΜΠΕΛΟΚΗΠΟΙ
  • Αγγ. Μεταξά
  • Αγγ. Μεταξά
  • Αμφιθέας
  • Αμφιθέας
  • Ανδρούτσου
  • ΑΝΩ ΠΑΤΗΣΙΑ
  • Αγίας Φωτεινής
  • ΑΝΩ ΠΑΤΗΣΙΑ
  • ΑΝΘΟΥΠΟΛΗ
  • ΑΝΘΟΥΠΟΛΗ
  • Ακτή Ποσειδώνος
  • Αγία Παρασκευή
  • Αγία Παρασκευή
  • ΑΡΓΥΡΟΥΠΟΛΗ
  • ΑΡΓΥΡΟΥΠΟΛΗ
  • Αγία Σκέπη
  • Αγία Σκέπη
  • Αγίας Φωτεινής
  • Αγία Τριάδα
  • ΑΤΤΙΚΗ
  • ΑΤΤΙΚΗ
  • ΑΤΤΙΚΗ
  • ΑΤΤΙΚΗ
  • Μπακνανά
  • Μπακνανά
  • Μπάτης
  • Μπάτης
  • ΑΓΙΟΣ ΑΝΤΩΝΙΟΣ
  • ΣΥΝΔΕΣΗ ΠΡΟΑΣΤΙΑΚΟΥ
  • ΣΥΝΔΕΣΗ ΠΡΟΑΣΤΙΑΚΟΥ
  • ΔΑΦΝΗ
  • ΔΑΦΝΗ
  • Δέλτα Φαλήρου
  • Δέλτα Φαλήρου
  • ΑΓΙΟΣ ΑΝΤΩΝΙΟΣ
  • ΔΗΜΟΤΙΚΟ ΘΕΑΤΡΟ
  • ΔΗΜΟΤΙΚΟ ΘΕΑΤΡΟ
  • Δημαρχείο
  • ΕΘΝΙΚΗ ΑΜΥΝΑ
  • ΕΘΝΙΚΗ ΑΜΥΝΑ
  • Εδέμ
  • Εδέμ
  • ΑΙΓΑΛΕΩ
  • ΑΙΓΑΛΕΩ
  • Αιγαίου
  • Άγιος Αλέξανδρος
  • Αιγαίου
  • ΕΛΑΙΩΝΑΣ
  • ΕΛΑΙΩΝΑΣ
  • ΕΛΛΗΝΙΚΟ
  • ΕΛΛΗΝΙΚΟ
  • Ελληνικό
  • Ελληνικό
  • ΕΛ. ΒΕΝΙΖΕΛΟΣ
  • ΕΛ. ΒΕΝΙΖΕΛΟΣ
  • ΕΥΑΓΓΕΛΙΣΜΟΣ
  • Άγιος Αλέξανδρος
  • ΕΥΑΓΓΕΛΙΣΜΟΣ
  • Ευαγγελική Σχολή
  • Ευαγγελική Σχολή
  • Ευαγγελίστρια
  • ΦΑΛΗΡΟ
  • ΦΑΛΗΡΟ
  • Φιξ
  • Φιξ
  • and 2 more (see the full list on the map or in the GeoJSON)

Over time

Overall score across the last 20 checks — unchanged since 2026-10-20.

2026-10-02: 49.72026-10-03: 49.72026-10-04: 49.72026-10-05: 49.72026-10-06: 49.72026-10-07: 49.72026-10-08: 49.72026-10-09: 49.72026-10-10: 49.72026-10-11: 49.72026-10-12: 49.72026-10-13: 49.72026-10-14: 49.72026-10-15: 49.72026-10-16: 49.72026-10-17: 49.72026-10-18: 49.72026-10-19: 49.72026-10-20: 49.72026-10-21: 49.7
Show the numbers
Overall score by check, with the change from the previous check
CheckScoreChange
2026-10-0249.7 first check
2026-10-0349.7 no change
2026-10-0449.7 no change
2026-10-0549.7 no change
2026-10-0649.7 no change
2026-10-0749.7 no change
2026-10-0849.7 no change
2026-10-0949.7 no change
2026-10-1049.7 no change
2026-10-1149.7 no change
2026-10-1249.7 no change
2026-10-1349.7 no change
2026-10-1449.7 no change
2026-10-1549.7 no change
2026-10-1649.7 no change
2026-10-1749.7 no change
2026-10-1849.7 no change
2026-10-1949.7 no change
2026-10-2049.7 no change
2026-10-2149.7 no change

What changed since your last check

  • Correctness no change
  • Freshness no change
  • 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.

Feed history by published file
CheckedPublished fileService dates throughGrade at the time
2026-10-02 to 2026-10-21 (20 checks)3322c30b30d82026-08-31Current rubric: see the trend above
2026-07-25 to 2026-10-01 (65 checks)3322c30b30d82026-08-31F, 49.7 under rubric 1.3, an earlier scoring contract; not comparable with today’s grade
2026-07-23 to 2026-07-24 (2 checks)3322c30b30d82026-08-31D, 61.7 under rubric 1.2, an earlier scoring contract; not comparable with today’s grade

What changed in this feed

Overall grade and score held steady since 2026-10-20.

Same feed file as 2026-10-20; 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

11 findings, ordered by severity.

Show every finding
  • Error1 instance

    Service data ended 51 day(s) ago.

    When the calendar runs out, trip planners stop showing this agency even though the transit vehicles are still running. Riders are told the service does not exist.

    Fix: Re-export the feed with a calendar that reaches further out. Set feed_end_date in feed_info.txt past your next service change. (Usually one export setting; export on a schedule so it never lapses again.)

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

  • Warning57598 instances

    57598 of 75730 trips have no headsign, the text that tells riders where the transit vehicle is going. A trip counts when it has trip_headsign or a stop_headsign at every stop.

    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 for scorecard_missing_headsigns · See GTFS Best Practices (opens GTFS Best Practices on an external site)

  • Warning38329 instances

    38329 of 75730 trips don't say whether the vehicle is wheelchair accessible.

    Even with accessible stops, riders need to know the transit vehicle 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 for scorecard_wheelchair_accessible_unknown · See GTFS Schedule reference (opens the GTFS Schedule reference on an external site)

  • Warning129 instances

    129 of 252 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 for scorecard_wheelchair_boarding_unknown · See GTFS Schedule reference (opens the GTFS Schedule reference on an external site)

  • Warning89 instances

    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 for mixed_case_recommended_field · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

  • Warning1 instance

    A file GTFS asks for (usually feed_info.txt) is missing.

    feed_info.txt tells apps who publishes the feed and when it expires; without it nobody is warned before data goes stale.

    Fix: Add feed_info.txt with publisher name, URL, language, and feed_start_date/feed_end_date. (One small file, set once in export settings.)

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

  • Warning1 instance

    feed_info.txt is missing its start/end dates (the file itself is absent)

    Apps and this scorecard can't warn anyone before the feed goes stale without stated validity dates.

    Fix: Add feed_info.txt with feed_start_date and feed_end_date to your export. (Two fields, set once in export settings.)

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

  • Warning1 instance

    The feed contains no fare information.

    Riders see 'fare unknown' in trip planners and can't budget their trip; visitors are most affected.

    Fix: 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. (A small file for most flat-fare systems.)

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

  • Info18132 instances

    Some trip headsigns name a stop along the way, not the final destination.

    The sign should tell riders where the transit vehicle ends up, so a midpoint name can send them the wrong way.

    Fix: Set trip_headsign to the trip's last stop or its overall destination. (Usually a bulk edit in your scheduling software.)

    Finding code: trip_headsign_matches_intermediate_stop · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

  • Info144 instances

    About 144 stop names are written in ALL CAPS.

    Mixed-case names are easier to read in apps and are read more naturally by screen readers.

    Fix: Rename stops to mixed case where the language has letter case (for example, 'Central Station'). (Often a bulk fix in your scheduling software.)

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

  • Info1 instance

    feed_info.txt has no technical contact (feed_contact_email or feed_contact_url).

    App makers and state data programs have nobody to email when they spot a problem. Small errors then sit in the feed for months.

    Fix: Add feed_contact_email to feed_info.txt. (One field.)

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

Conformance mark Not yet

Two requirements remain for this feed to earn the conformance mark. Service data expired 51 days ago. States wheelchair access on 49% of stops and 49% of trips; the mark needs 90% of each.

Valid Met
Passes validation with no errors.
Current Not yet
Service data expired 51 days ago.
Accessible Not yet
States wheelchair access on 49% of stops and 49% 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.

Below the Google and Apple Maps four-week coverage bar. This feed's last day of service has passed, so Google and Apple Maps will stop showing your agency. Re-export with a calendar that covers at least the next four weeks.

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. Read the full standards crosswalk.

Correctness 87 / 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.
Freshness 0 / 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.
Rider experience 37 / 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.

Similar feeds in Attikí

Other scorecards in Attikí, 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.

OASA Athens rail transport (metro, electric railway, tram): GTFS feed quality grade F, 49.7 of 100, checked 2026-10-21. GTFS Scorecard.

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/oasa-athens-rail/2026-10-21.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 2026-10-21. 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.