Feed status · checked 2026-08-01
Cardiff Bus (Bws Caerdydd)
Based on the feed this agency publishes
Service mode Bus
unchanged since 2026-07-31
Catalogued in Cardiff [Caerdydd GB-CRD], United Kingdom.
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 80 minutes ago; last changed 3 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
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
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
1650 of 1650 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
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
5009 of 5009 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
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
- Block trips with overlapping stop times (flagged by the MobilityData validator).
- Next action
- 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.
- 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
- Feed evidence
- 1650 of 1650 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
- Feed evidence
- 5009 of 5009 trips don't say whether the vehicle is wheelchair accessible.
- Next action
- Set wheelchair_accessible on every trip. If every vehicle is accessible, this may be one default; otherwise use the value for each trip.
- 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.
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. See this feed's finding-clearance log.
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. See this feed's finding-clearance log.
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. 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 is in 362 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
- 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.
Score by category
The MobilityData validator flagged 6 kinds of issue across 580 instances (259 error, 131 warning, 190 informational).
Service data covers the next 362 days.
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.
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.
143 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.
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 1650 stops.
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.
- 1 (gray)
- 101 (white)
- 102 (white)
- 11 (white)
- 13 (yellow)
- 136 (white)
- 14 (white)
- 17 (red)
- 18 (red)
- 2 (gray)
- 21 (green)
- 23 (green)
- 24 (green)
- 25 (green)
- 25A (white)
- 27 (yellow)
- 28 (green)
- 29 (white)
- 3 (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)
| Route | Type | Line color |
|---|---|---|
| 1 | Bus | gray |
| 101 | Bus | white |
| 102 | Bus | white |
| 11 | Bus | white |
| 13 | Bus | yellow |
| 136 | Bus | white |
| 14 | Bus | white |
| 17 | Bus | red |
| 18 | Bus | red |
| 1A | Bus | white (no shape in feed) |
| 2 | Bus | gray |
| 21 | Bus | green |
| 23 | Bus | green |
| 24 | Bus | green |
| 25 | Bus | green |
| 25A | Bus | white |
| 27 | Bus | yellow |
| 28 | Bus | green |
| 29 | Bus | white |
| 2A | Bus | white (no shape in feed) |
| 3 | Bus | white |
| 30 | Bus | purple |
| 305 | Bus | white |
| 32 | Bus | white |
| 35 | Bus | purple |
| 4 | Bus | green |
| 44 | Bus | green |
| 45 | Bus | green |
| 49 | Bus | brown |
| 50 | Bus | brown |
| 52 | Bus | purple |
| 54 | Bus | purple |
| 57 | Bus | teal |
| 58 | Bus | teal |
| 6 | Bus | teal |
| 604 | Bus | gray |
| 606 | Bus | gray |
| 608 | Bus | gray |
| 609 | Bus | gray |
| 61 | Bus | red |
| 610 | Bus | gray |
| 611 | Bus | gray |
| 619 | Bus | white |
| 62 | Bus | white |
| 63 | Bus | black |
| 64 | Bus | gray |
| 7 | Bus | white |
| 8 | Bus | teal |
| 86 | Bus | white |
| 9 | Bus | yellow |
| 91 | Bus | white |
| 92 | Bus | pink |
| 92B | Bus | pink |
| 93 | Bus | pink |
| 93S | Bus | pink |
| 94 | Bus | pink |
| 95 | Bus | red |
| 96 | Bus | gray |
| B1 | Bus | white |
| B2 | Bus | white |
| H59 | Bus | teal |
| M1 | Bus | gray |
| Sky | Bus | white |
| 30 | Bus | white |
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
- 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
- Castlefield Centre
- Wentloog Rd
- Caeglas Rd
- 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
- Blind Institute
- 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
- Sindercombe Cl
- and 1400 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.
Show the numbers
| Check | Score | Change |
|---|---|---|
| 2026-07-25 | 54.4 | first check |
| 2026-07-30 | 56.2 | up 1.8 |
| 2026-07-31 | 56.2 | no change |
| 2026-08-01 | 56.2 | 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
- Error259 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.)
Finding code: block_trips_with_overlapping_stop_times · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
- Warning5009 instances
5009 of 5009 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)
- Warning1650 instances
1650 of 1650 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)
- Warning89 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.)
Finding code: stop_too_far_from_shape · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
- Warning39 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.)
Finding code: 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)
- Warning2 instances
On some trips the stops fall along the route line in a different order than the schedule lists.
Trip planners can draw the bus doubling back or skipping ahead, which confuses riders reading the map.
Fix: Check the stop order and the shape direction in your scheduling software; the shape is often drawn backwards. (A few minutes per flagged trip.)
Finding code: stops_match_shape_out_of_order · 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 · 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 · 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 · See GTFS Best Practices (opens GTFS Best Practices on an external site)
- Info190 instances
The feed has a stretch of two weeks or more with no service running.
A long gap can mean dates were left out of the calendar. Apps then show no trips on those days.
Fix: Check whether the gap is real, like a seasonal break; if not, add the missing dates to the calendar. (A review of your calendar dates.)
Finding code: big_gap_in_service · Read the fix guide · See MobilityData GTFS Validator rules (opens the validator rules 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.)
Finding code: 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. 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 Met
- Service data covers the next 362 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.
Clears the Google and Apple Maps four-week coverage bar. This feed has 362 days of service ahead, clearing the four-week (28-day) window Maps asks for. The feed also carries 259 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 53 / 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 85 / 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.
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/2026-08-01.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 2026-08-01. 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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