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Feed status · checked 2026-07-18

Cardiff Bus (Bws Caerdydd)

Based on the feed this agency publishes

Service mode Bus

35.3 / 100

First scorecard for this agency

Catalogued in Cardiff [Caerdydd GB-CRD], United Kingdom.

Feed expiredAccessibility gapsRealtime 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 v1.2, validator 8.0.1.

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

Re-export the feed with a calendar that reaches further out, and set feed_info feed_end_date past your next service change.Likely your export tool

Service data ended 0 day(s) ago. When the calendar runs out, trip planners stop showing this agency even though the buses are still running. Riders are told the service does not exist.

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

Fix 02

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

Block trips with overlapping stop times (flagged by the MobilityData validator). See the linked rule for what this affects.

⏱ Varies.worth about +24 points in its category

Fix 03

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

1667 of 1667 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

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. Re-export the feed with a calendar that reaches further out, and set feed_info feed_end_date past your next service change. · Read the fix guide

    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.

  2. Review the rule documentation for 'block_trips_with_overlapping_stop_times' at https://gtfs-validator.mobilitydata.org/rules.html and check the flagged rows in your feed.

    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.

  3. 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.

    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 today.
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
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

Correctness54.0 / 100

The MobilityData validator flagged 5 kinds of issue across 130 instances (63 error, 67 warning, 0 informational).

Freshness0.0 / 100

Service data ended 0 day(s) ago. Trip planners have likely already dropped this feed.

Rider experience37.5 / 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.

2 accessibility depth signals

  • 23 route badge(s) pair a color and text color below the WCAG 4.5:1 contrast bar (1, 2, 8, 9, 13, 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.

  • 144 stop name(s) use abbreviations or symbols a screen reader may mispronounce, with no spoken form set ("Arnold Ave", "Arnold Ave", "Ball Road/Ball Lane", 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.

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.

  • 1 (gray)
  • 101 (white)
  • 102 (white)
  • 11 (white)
  • 13 (yellow)
  • 136 (white)
  • 14 (white)
  • 17 (red)
  • 18 (red)
  • 1A (white)
  • 2 (gray)
  • 21 (green)
  • 23 (green)
  • 24 (green)
  • 25 (green)
  • 25A (white)
  • 27 (yellow)
  • 28 (green)
  • 29 (white)
  • 2A (white)
  • 30 (purple)
  • 305 (white)
  • 32 (white)
  • 35 (purple)
  • 4 (green)
  • 44 (green)
  • 45 (green)
  • 49 (brown)
  • 50 (brown)
  • 52 (purple)
  • 54 (purple)
  • 57 (teal)
  • 58 (teal)
  • 6 (teal)
  • 604 (gray)
  • 606 (gray)
  • 608 (gray)
  • 609 (gray)
  • 61 (red)
  • 610 (gray)
  • 611 (gray)
  • 619 (white)
  • 62 (white)
  • 63 (black)
  • 64 (gray)
  • 7 (white)
  • 8 (teal)
  • 86 (white)
  • 9 (yellow)
  • 91 (white)
  • 92 (pink)
  • 92B (pink)
  • 93 (pink)
  • 93S (pink)
  • 94 (pink)
  • 95 (red)
  • 96 (gray)
  • B1 (white)
  • B2 (white)
  • H59 (teal)
  • M1 (gray)
  • Sky (white)
  • 30 (white)
Routes in Cardiff Bus (Bws Caerdydd)'s feed
RouteTypeLine color
1Busgray
101Buswhite
102Buswhite
11Buswhite
13Busyellow
136Buswhite
14Buswhite
17Busred
18Busred
1ABuswhite
2Busgray
21Busgreen
23Busgreen
24Busgreen
25Busgreen
25ABuswhite
27Busyellow
28Busgreen
29Buswhite
2ABuswhite
30Buspurple
305Buswhite
32Buswhite
35Buspurple
4Busgreen
44Busgreen
45Busgreen
49Busbrown
50Busbrown
52Buspurple
54Buspurple
57Busteal
58Busteal
6Busteal
604Busgray
606Busgray
608Busgray
609Busgray
61Busred
610Busgray
611Busgray
619Buswhite
62Buswhite
63Busblack
64Busgray
7Buswhite
8Busteal
86Buswhite
9Busyellow
91Buswhite
92Buspink
92BBuspink
93Buspink
93SBuspink
94Buspink
95Busred
96Busgray
B1Buswhite
B2Buswhite
H59Busteal
M1Busgray
SkyBuswhite
30Buswhite

This feed has 1667 stops.

List every stop
  • St Olaves
  • Castleton (Post Office)
  • Bryn Hafren
  • Kingsway Centre
  • Kingsway
  • Bakery
  • Tredegar Park
  • St Thomas` Church
  • Shops
  • Maesglas Shops
  • Maesglas Post Office
  • Harlech Retail Park
  • Maesglas McDonald`s
  • Maesglas McDonald`s
  • Waterloo Road
  • Waterloo Road
  • Belle Vue Park
  • Belle Vue Park
  • Royal Gwent Hospital
  • Royal Gwent Hospital
  • Police Station
  • Police Station
  • Tredegar Park
  • Cleppa Park
  • Cleppa Park
  • Celtic Way
  • Celtic Way
  • Tavern Farm
  • Tavern Farm
  • Berryhill Farm
  • Berryhill Farm
  • Pound Hill
  • Pound Hill
  • Halfway Garage
  • Halfway Garage
  • Castleton (Coach & Horses)
  • Maesglas BP Garage
  • Ebbw Bridge Club
  • Newport (Friars Walk Bus Stn)
  • Park Drive
  • Greyfriars Road GL
  • West Grove
  • West Grove 2
  • West Grove 3
  • Infirmary
  • Infirmary
  • Elm Street
  • Oakfield Street
  • Stacey Road
  • Royal Oak
  • City Link
  • Colchester Avenue Bottom
  • Ipswich Road
  • Castle Avenue
  • Ty Mawr Road
  • Carpenters Arms
  • Llanrumney Ave
  • Highcroft
  • Taunton Crescent
  • High School
  • Mount Pleasant Avenue
  • Bluebell Inn
  • Llaneirwg Way
  • Wern Fawr Lane
  • Vaindre Lane
  • Llaneirwg Way
  • Bluebell Inn
  • The Mount
  • St Illtyds H S
  • Llanrumney Avenue
  • Lynton Terrace
  • Eastern Leisure Centre
  • Eastern Leisure Centre
  • Watchet Close
  • Worle Avenue
  • Bideford Road
  • Cheddar Crescent
  • Clevedon Court
  • Clevedon Court
  • Countisbury Avenue
  • Countisbury Avenue
  • Elgar Crescent
  • Elgar Crescent
  • Bluebell Drive
  • Bluebell Drive
  • Okehampton Avenue
  • Arnold Ave
  • Arnold Ave
  • Hazlitt Close
  • Hazlitt Close
  • Siloam Baptist
  • Shaw Close
  • Laureate Close
  • Laureate Close
  • Eastern Leisure Centre
  • Worle Avenue
  • Lynton Terrace
  • Ball Road/Ball Lane
  • Ball Road/Ball Lane
  • Llanrumney Hall
  • Llanrumney Hall
  • Mount Pleasant Ave
  • High School
  • Witla Court
  • Highcroft
  • Claremont Crescent
  • Carpenters Arms
  • Ty Mawr Road
  • The Potteries
  • Ty Mawr Avenue
  • Tredelerch Road
  • Highlands
  • Brachdy Lane
  • Brachdy Lane
  • Quarry Dale
  • Quarry Dale
  • Mardy Road
  • Downton Grange
  • Heron Road
  • Heron Road
  • Harris Avenue
  • St Hilary Church
  • Towyn Road
  • Towyn Road
  • Trowbridge Road
  • Trowbridge Road
  • Brynbala Way
  • Brynbala Way
  • Glan y Mor Road
  • Glan y Mor Road
  • Cemaes Crescent
  • Cemaes Way
  • Trebanog Crescent
  • Port Madoc Road
  • Abergele Road
  • Tresigin Road
  • Willowbrook Drive
  • Coleford Drive
  • St Mellons Police Station
  • Heritage Inn
  • Heritage Park
  • Sanderling Drive
  • Willowdene Way
  • Willowbrook School
  • Crickhowell Road
  • Meadowlane Primary School
  • Clos Gwlad-Yr-Haf
  • Kwik Save
  • Llaneirwg Way
  • Llaneirwg Way
  • Tarwick Drive
  • Tarwick Drive
  • Ty Coch Court
  • Hendre Road
  • Hendre Road
  • Abergele Road
  • Abergele Road
  • Trowbridge Road
  • Rhyl Road
  • Rhyl Road
  • Nevin Crescent
  • Nevin Crescent
  • Manorbier Cres
  • Manorbier Cres
  • Oswestry Close (Caeglas Road)
  • Castlefield Centre (Caeglas Rd)
  • Wentloog Rd
  • Caeglas Rd
  • New Road
  • New Road
  • Caeglas Road
  • Caeglas Rd
  • Nursery School
  • Junior School
  • Ty Fry Road
  • Ty Fry Road
  • Ipswich Road
  • Colchester Avenue Bottom
  • City Link
  • Royal Oak
  • Baron's Court Rd
  • Colchester Avenue (Howardian Close)
  • Colchester Avenue
  • Sainsbury's
  • Sainsbury's
  • Stacey Road
  • Priest Road
  • Piercefield Place
  • Infirmary
  • Infirmary
  • Fitzalan Place
  • West Grove
  • West Grove
  • Richmond Crescent
  • Richmond Crescent
  • Lowther Road
  • Lowther Road
  • Arabella Street
  • Alfred Street
  • Claude Hotel
  • Roath Court Place
  • Timbers Square
  • Timbers Square
  • Roath Court Place
  • Claude Hotel
  • Angus Street
  • Arabella Street
  • Library
  • Library
  • Melrose Avenue
  • Bronwydd Avenue
  • Greenlawns
  • Greenlawns
  • Penylan Terrace
  • Ysgol Bro Edern
  • Ysgol Bro Edern
  • Llanedeyrn Road
  • Llanedeyrn Road
  • Queenwood
  • Queenwood
  • Ael y Bryn
  • Ael y Bryn
  • Pensylvania
  • Pensylvania
  • Glenwood
  • Glenwood
  • Wellwood
  • Wellwood
  • Maelfa
  • Maelfa
  • Brynfedw
  • Roundwood
  • Coed -Y-Gores
  • Coed -Y-Gores
  • Wern Goch
  • Wern Goch
  • Holly Bush
  • Glyncoed School
  • Llwyn Castan
  • Llwyn Castan
  • Aldi
  • Aldi
  • Glyn Eiddw
  • Glyn Eiddw
  • Pentwyn Drive
  • Pentwyn Drive
  • Bupa
  • Bupa
  • The Farthings
  • The Farthings
  • and 1417 more (see the full list on the map or in the GeoJSON)

Over time

This is the first scorecard for this agency. A trend and a "what changed" summary appear here once it has been checked more than once.

Everything we checked

11 findings, ordered by severity.

Show every finding
  • Error63 instances

    Block trips with overlapping stop times (flagged by the MobilityData validator).

    See the linked rule for what this affects.

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

    Validator rule: block_trips_with_overlapping_stop_times · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

  • Error1 instance

    Service data ended 0 day(s) ago.

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

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

    Validator rule: scorecard_feed_expired · Read the fix guide · See GTFS Best Practices (opens GTFS Best Practices on an external site)

  • Warning4959 instances

    4959 of 4959 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.)

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

  • Warning1667 instances

    1667 of 1667 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.)

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

  • Warning59 instances

    Some service calendars have no days of the week switched on.

    Trips tied to these calendars never run; they are dead data that can mask real schedule problems.

    Fix: Delete the empty calendars or set their service days. (A few minutes in your scheduling software.)

    Validator rule: service_has_no_active_day_of_the_week · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

  • Warning6 instances

    Some stops sit far from the route line they belong to.

    Trip planners may draw the bus route through the wrong streets or point riders to the wrong corner.

    Fix: Check the flagged stops' coordinates and the route shape in your scheduling software; re-snap whichever is misplaced. (A few minutes per flagged stop.)

    Validator rule: stop_too_far_from_shape · Read the fix guide · 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.)

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

  • Warning1 instance

    Many of the feed's trips don't run at all in the next 7 days.

    It usually means old service periods are still in the export, making the feed bigger and harder to check.

    Fix: Trim past service periods the next time you export. (One setting in most export tools.)

    Validator rule: trip_coverage_not_active_for_next7_days · Read the fix guide · 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.)

    Validator rule: scorecard_missing_feed_info_dates · Read the fix guide · 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.)

    Validator rule: scorecard_no_fare_data · Read the fix guide · 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).

    Trip-planning apps and regional data coordinators have nobody to email when they spot a problem with your feed, so problems linger.

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

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

Conformance mark Not yet

This feed is close to the conformance mark. 1 validator error to resolve. Service data expired 0 days ago. States wheelchair access on 0% of stops and 0% of trips; the mark needs 90% of each.

Valid Not yet
1 validator error to resolve.
Current Not yet
Service data expired 0 days ago.
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.

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. The feed also carries 63 validator errors, the other thing Maps checks at onboarding; the findings below name each fix.

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 54 / 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 38 / 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.

Cardiff Bus (Bws Caerdydd) 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/cardiff-bus/2026-07-18.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 2026-07-18. 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.

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