Permanent project revision
Revision 2026-10-15-baseline · effective 2026-10-15
Current revision. This is the snapshot used by the live entity page.
Created the first structured Evidence Passport with 16 claims and 10 source dossiers.
sha256:1c39651592e7e419348cfca19ccf611370d22e9559f01c202e44a89b68f8aaab
add /evidencePassport — Added claim-level evidence mapping and source dossiers.add /revisionHistory — Established a permanent, hash-addressed baseline revision.The text below is copied verbatim from the published record. Each claim names the source dossiers that carry it; caveats stay attached to the claim they qualify.
clm-074989ad00b4c95a
descriptive
Auckland Transport publishes its timetables as a downloadable GTFS file and its vehicle positions, trip updates and service alerts as a GTFS Realtime feed open to any developer who registers for free
clm-8245633679f97610
quantitative
A beta API opened before a May 2014 hackathon
clm-6d78ebcbf8d4a118
quantitative
real-time GTFS data reached registered users only in November 2015, after a developer used an official information request to ask when the API would stop serving mocked data
clm-f3369633b9f188f7
descriptive
AT's own AT Mobile app uses the same APIs
clm-fc7e57d31012c8c4
quantitative
AT says the data it releases is licensed under Creative Commons Attribution 4.0, but the developer portal's terms say their licence does not apply to the datasets themselves
clm-47ef7b2bd846ecd1
quantitative
In May 2025 the Auditor-General found that AT's disruption alerts are entered manually and that ferry tracking is not always accurate
clm-3af01bb958be0050
descriptive
No source measures an effect of publishing the feeds themselves.
clm-523a1d4cdd5787dd
descriptive
it uses the information to measure the reliability and punctuality of every mode
clm-6c851eef6cc42d57
quantitative
in 2023/24 it introduced a reliability measure that considers services that were cancelled or did not start their route within a reasonable time
clm-e319cd5156029346
descriptive
it has strengthened reliability and punctuality expectations in its operator contracts in line with improvements in its ability to track their services
clm-01e4b3faa3789e27
quantitative
a University of Auckland statistician described in August 2022 bots that report punctuality, cancellations and headways for Auckland buses from the AT GTFS feed
clm-222c52b168fd0cb3
descriptive
warned that some outliers appear to be errors, such as buses that start updating their position long before a trip or keep updating long after it
clm-5c4fe620f2444d4b
descriptive
Bus positions in Auckland come from automatic vehicle location devices
clm-ff6b810f258f47ee
descriptive
still depends on operators notifying AT and on staff entering it by hand, with limited or no information about unplanned disruptions outside business hours
clm-8e445d2d8a790c15
descriptive
an outside count of cancellations built on the feed is only as complete as the alerts AT types in
clm-4776a8c7494cf0b9
descriptive
a developer reading the API terms finds a licence for the portal's pages, not for the data
This layer records what is known about each source, what is still missing, and the exact snapshot this page is rendering. A missing date, archive or hash stays visible as missing.
Awaiting operator and domain-expert review; publication of this revision implies neither.
sha256:1c39651592e7e419348cfca19ccf611370d22e9559f01c202e44a89b68f8aaab
src-67218176dd5db9feAuckland Transport's open-data page: the data it releases is free to use and licensed under Creative Commons Attribution 4.0 International; the APIs are provided under the developer portal's separate API terms; lists real-time alerts, vehicle locations and trip updates among the API data.
src-2754dc1a52bbdf60The download page for AT's static GTFS timetable file, stating a Creative Commons Attribution 4.0 International licence; the file itself carried an update date of 12 October 2026 when read.
src-abf1910539d004f2States that use of the APIs requires a free registration, sets limits of 600 calls a minute and 35,000 calls a week, and says AT's own AT Mobile app uses these APIs.
src-7c00c4773685b41eTechnical description of the real-time feed: GTFS Realtime trip updates, vehicle positions and alerts for buses, trains and ferries, updated at least every 30 seconds, with vehicle identifiers from automatic vehicle location devices.
src-0d773642a3d91959The portal's terms license material on the site under Creative Commons Attribution 3.0 New Zealand and state that this licence does not apply to the datasets themselves, whose licences (if any) are selected by the source agencies.
src-0caba5827213d952Auckland Transport press release on the HACKAKL:Transport hackathon: in the run-up AT made available a beta API covering real-time bus information, geo-coding, roading and congestion data.
src-357f20e1cd568404A developer's official information request asking when the real-time API would serve real rather than mocked data, with Auckland Transport's replies; on 26 November 2015 AT said GTFS real-time data could now be made available to fully registered API users.
src-16ae5a41ff144d9eIndependent performance audit: AT Mobile is AT's main information channel; disruption alerts are entered manually from templates; information through AT's portals might not always be accurate; AT communicates only a small percentage of roadworks disruptions to buses and gives limited or no information on unplanned disruptions outside business hours.
src-6d2e28e8d45a86caIndependent performance audit: automatic vehicle location devices feed AT's Command Centre; ferry tracking is not always accurate; AT uses the tracking data to measure reliability and punctuality and has strengthened operator contracts as tracking improved.
src-253ae6bb443fbaf7A University of Auckland statistician describes bots that report punctuality, cancellations and headways for Auckland buses from the AT GTFS feed, and the errors found in the feed.