Dublin Real-Time Passenger Information & the NTA's Open GTFS-Realtime Feed
This overview was generated with AI from the public sources listed below and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.
17 sourced claims on this page, none individually verified yet — turn on “Sources in the text” to see each one.
How this atlas is made · What “last verified” means · What “source-checked” means · The full record behind this page
Dublin's buses report their GPS position, yet a cancelled bus can still count down to zero on the signs. The fix, a €68.5 million tracking system, was still awaited in 2026.
what does this mean?
The strongest source is the operator's or the city's own reporting — an official report, dataset or press release. It grades who did the looking — not how well the project went. All four grades →Part of 1001 Smart Cities — 1,176 documented projects · 🏙️ 10 more in Dublin · 🚌 Public transport guide · 🚲 Mobility projects
Dublin's real-time passenger information went public on 26 September 2011, when the National Transport Authority, with technical help from Dublin City Council, put live arrival times for all 5,000 Dublin Bus stops on a website, an iPhone app and a text service, while 500 electronic signs were being installed at stops. Each bus reports its GPS position to automatic vehicle location (AVL) software, which matches it against the day's schedule to predict arrivals. The NTA publishes its timetables as GTFS under a CC BY 4.0 licence, and since August 2020 the live predictions as a GTFS-Realtime feed that needs a registered key; the 2023 upgrade added Luas and Iarnród Éireann services and live bus positions. The same data drives the TFI Live app and, by the NTA's count, more than 800 on-street displays.
📊 Impact
The feed has a well-documented weakness: when a bus is cancelled but the operator does not tell the system in time, the signs and apps keep counting down to a bus that never comes — the NTA's own explanation of Dublin's 'ghost buses'. Passenger complaints run from 2022 into September 2026, and the crowd-reporting site noshowbus.ie logged more than 2,600 reports between 1 January and 5 August 2025. Dublin Bus put its real-time accuracy, audited by the NTA, at around 96% in 2024 and at 'a record high of 98 per cent' in early 2025; both figures are the operator's statements to the press. The NTA's answer is a €68.5 million contract, awarded to Trapeze in December 2023, to merge five separate AVL systems into one. Promised for late 2025 to late 2026, it was still awaited in September 2026, when Dublin Bus said the app would improve 'when we get the new automatic vehicle location system in place'.
🎓 Lesson
A live-arrival feed is only as honest as its cancellation messages. GPS can locate a bus that is running, but a bus that never left the garage is invisible until the operator cancels it, and without that message TFI Live cannot show the service as cancelled and falls back on the timetable. Opening the data did not route around the gap: every app draws its real-time data from the NTA, so unofficial apps inherit the same ghosts.
Sources
Show 8 more sourcesShow fewer
📅 How old is the evidence?
Two clocks, kept apart: when this entry’s sources were published, and what has happened to its record in the atlas. Documented span: since 2011. 12 of 13 sources carry a publication date, from 26 September 2011 to 11 September 2026.
When the sources were published
- National Transport Authority · operatorNTA press release on the real-time launch, 26 Sep 2011 (operator)
- Smart Dublin · city governmentSmart Dublin, on real-time passenger information, Aug 2017 (city)
- National Transport Authority · operatorNTA, new GTFS-Realtime data feed, Aug 2020 (operator)
- Dublin Inquirer · pressDublin Inquirer, on ghost buses, Jul 2022 (media)
- National Transport Authority · operatorNTA, upgrade to GTFS-Realtime v2, Mar 2023 (operator)
- National Transport Authority · operatorNTA, AVL contract award to Trapeze, Dec 2023 (operator)
- Newstalk · pressNewstalk, Dublin Bus CEO on replacing the real-time system, Aug 2024 (media)
- Dublin Inquirer · pressDublin Inquirer, on the new bus-tracking contract, Sep 2024 (media)
Show 4 more dated sourcesShow fewer
- The Irish Times · pressThe Irish Times, on bus penalties and ghost buses, Feb 2025 (media)
- Dublin Inquirer · pressDublin Inquirer, on the no-show bus tracker, Aug 2025 (media)
- Newstalk · pressNewstalk, on ghost buses at the start of the school year, Sep 2026 (media)
- Radio Nova · pressRadio Nova, on Dublin Bus and the new AVL system, Sep 2026 (media)
Show your work What this page rests on and what it can’t tell you · all 17 claims with their sources · the forensic record
Evidence Passport · public beta 17 addressable claims, 13 source dossiers, one permanent baseline. The passport is unreviewed — an AI-assisted structural migration, not a human or expert endorsement. Every revision keeps a permanent copy under revision history.
Inspect the claims, one by one — verbatim text, sources and caveats for all 17
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-0d16eea05f859b17
quantitative
went public on 26 September 2011, when the National Transport Authority, with technical help from Dublin City Council, put live arrival times for all 5,000 Dublin Bus stops on a website, an iPhone app and a text service
Sources carrying this claim
clm-cdbf9ad54789009e
quantitative
while 500 electronic signs were being installed at stops
Sources carrying this claim
clm-7e3faf1fe1b308f5
descriptive
Each bus reports its GPS position to automatic vehicle location (AVL) software, which matches it against the day's schedule to predict arrivals
Sources carrying this claim
clm-9f09572ae821ba55
quantitative
The NTA publishes its timetables as GTFS under a CC BY 4.0 licence
Sources carrying this claim
clm-6611d5ae4ec2c6dd
quantitative
since August 2020 the live predictions as a GTFS-Realtime feed that needs a registered key
Sources carrying this claim
clm-f1af485d82750ef6
quantitative
the 2023 upgrade added Luas and Iarnród Éireann services and live bus positions
Sources carrying this claim
clm-b7cf788b36d56205
quantitative
The same data drives the TFI Live app and, by the NTA's count, more than 800 on-street displays
Sources carrying this claim
clm-c63304433c4165a5
descriptive
when a bus is cancelled but the operator does not tell the system in time, the signs and apps keep counting down to a bus that never comes — the NTA's own explanation of Dublin's 'ghost buses'
Sources carrying this claim
clm-c0a33a2e270e64c8
quantitative
Passenger complaints run from 2022 into September 2026
Sources carrying this claim
clm-08dcc23f509eca77
quantitative
the crowd-reporting site noshowbus.ie logged more than 2,600 reports between 1 January and 5 August 2025
Sources carrying this claim
clm-ac2dabd92f81f0d9
quantitative
Dublin Bus put its real-time accuracy, audited by the NTA, at around 96% in 2024
Sources carrying this claim
clm-fc426bb9a8baa4e2
quantitative
at 'a record high of 98 per cent' in early 2025
Sources carrying this claim
clm-bec73b8fa1398a10
quantitative
a €68.5 million contract, awarded to Trapeze in December 2023, to merge five separate AVL systems into one
Sources carrying this claim
clm-14576e41ae4b97f4
quantitative
Promised for late 2025 to late 2026, it was still awaited in September 2026, when Dublin Bus said the app would improve 'when we get the new automatic vehicle location system in place'
Sources carrying this claim
clm-0a4b4930989881df
descriptive
without that message TFI Live cannot show the service as cancelled and falls back on the timetable
Sources carrying this claim
clm-2a656a86c7fcfdb8
descriptive
a bus that never left the garage is invisible until the operator cancels it
Sources carrying this claim
clm-267e6a4b03c28607
descriptive
every app draws its real-time data from the NTA, so unofficial apps inherit the same ghosts
Sources carrying this claim
Forensic record — source dossiers, gaps, hashes and the exact revision this page renders
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:aec806f8c72d148e909e5ee58bb711135700d0c388b2dd8351941ad2a86816db
- 17
- of 17 claims mapped
- 13
- source dossiers
- 12
- publication dates recorded
- 0
- archives linked
- 0
- exact locators
- 0
- content captures hashed
Governance facts carried by the record
- Operator
- National Transport Authority (Transport for Ireland), with bus position data from Dublin Bus, Go-Ahead Ireland and Bus Éireann; launched with technical assistance from Dublin City Council
- Actor types
- national-government, city-government, private
- Funding model
- public
- Funding description
- National Transport Authority
- Cost
- €68.5 million for the national AVL replacement contract (awarded December 2023); the original system's cost is not stated in the sources
- Ownership
- Not recorded
- Decision rights
- Not recorded
- Exit conditions
- Not recorded
13 source dossiers
NTA press release on the real-time launch, 26 Sep 2011 (operator)
- Stable source ID
src-1dd823333bd28ecd- Publisher
- Name not classified · nationaltransport.ie
- Type / language
- pdf · language not classified
- Published
- 2011-09-26
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-09-25
- Dossier created
- 2026-09-25
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
The National Transport Authority's release for the launch on 26 September 2011: live arrival times for all 5,000 Dublin Bus stops by website, text and iPhone app, an initiative of the NTA 'delivered with the technical assistance of Dublin City Council', alongside 500 on-street electronic signs being installed across the Greater Dublin Area, over 270 of them in place. Dublin Bus's chief executive states the fleet is 'now equipped with a system which allows staff to identify the location of each bus'.
- Claims linked
Smart Dublin, on real-time passenger information, Aug 2017 (city)
- Stable source ID
src-ae4e228af16fba38- Publisher
- Name not classified · smartdublin.ie
- Type / language
- web-page · language not classified
- Published
- 2017-08-04
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-09-25
- Dossier created
- 2026-09-25
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Dublin City Council's smart-city programme explains how the system works — Automatic Vehicle Location data fed to a central RTPI server and on to the displays at stops — says the data was available to developers through an API on the Dublinked portal, and that RTPI 'started as a project for Dublin Bus in 2008 developed by Dublin City Council in collaboration with IBM'.
- Claims linked
NTA, new GTFS-Realtime data feed, Aug 2020 (operator)
- Stable source ID
src-7b63691dd77ffd16- Publisher
- Name not classified · nationaltransport.ie
- Type / language
- web-page · language not classified
- Published
- 2020-08-05
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-09-25
- Dossier created
- 2026-09-25
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
NTA notice of 5 August 2020: a GTFS-Realtime API for Dublin Bus, Bus Éireann and Go-Ahead Ireland has been launched 'in line with the NTA's commitment to providing open data', replacing the older RTPI REST API, which was to shut permanently on 30 September 2020. Registration on the NTA developer portal is required.
- Claims linked
NTA, upgrade to GTFS-Realtime v2, Mar 2023 (operator)
- Stable source ID
src-1b2e925e75652c72- Publisher
- Name not classified · nationaltransport.ie
- Type / language
- web-page · language not classified
- Published
- 2023-03-08
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-09-25
- Dossier created
- 2026-09-25
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
NTA notice of 8 March 2023: the real-time API is replaced by an upgraded set integrated with a new Travel Information platform; the new GTFS-R feed extends real-time updates to Luas and Iarnród Éireann services and adds a Vehicle Location API with bus positions.
- Claims linked
Transport for Ireland, Public Transport Data page (operator)
- Stable source ID
src-c9aa1696bbb7dee8- Publisher
- Name not classified · transportforireland.ie
- Type / language
- web-page · language not classified
- Published
- Not recorded
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-09-25
- Dossier created
- 2026-09-25
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
The NTA's download page for GTFS timetables, stop data and a list of real-time operators: 'This data is licensed under CC BY 4.0 and is attributed to the National Transport Authority.' Access to the GTFS-Realtime API is by registration on the NTA developer portal. A continuously updated page.
- Claims linked
NTA, AVL contract award to Trapeze, Dec 2023 (operator)
- Stable source ID
src-d5f632daf2a9ae12- Publisher
- Name not classified · nationaltransport.ie
- Type / language
- web-page · language not classified
- Published
- 2023-12-20
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-09-25
- Dossier created
- 2026-09-25
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
NTA announcement of 20 December 2023: a contract to Trapeze to implement a national Automatic Vehicle Location solution for all public service buses, consolidating 'several existing bus AVL systems into one central system', feeding the TFI Live app, 'our 800+ On-Street Displays' and real-time exports to third-party apps. The release does not state the contract value.
- Claims linked
Dublin Inquirer, on ghost buses, Jul 2022 (media)
- Stable source ID
src-dfea3dd5663c8df9- Publisher
- Name not classified · dublininquirer.com
- Type / language
- web-page · language not classified
- Published
- 2022-07-27
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-09-25
- Dossier created
- 2026-09-25
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Report of 27 July 2022 on passengers waiting for buses shown on signs and apps that never came. Explains, via app developer Stephen McBride, that GPS data is matched to the schedule by AVL software and that without a GPS fix the system shows the scheduled time, so cancelled services have to be removed by the operator. Dublin Bus said its app, website and on-street signs do not show cancellations; a Dublin Bus spokesperson said all bus apps get their real-time data from the NTA; NTA data showed Dublin Bus services not run rising from about 1 to about 2 per cent over 2021.
Dublin Inquirer, on the new bus-tracking contract, Sep 2024 (media)
- Stable source ID
src-8da8fc2620b70872- Publisher
- Name not classified · dublininquirer.com
- Type / language
- web-page · language not classified
- Published
- 2024-09-25
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-09-25
- Dossier created
- 2026-09-25
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Report of 25 September 2024: the NTA awarded a €68.5 million contract to Trapeze Group UK in December 2023 for a new AVL system, with roll-out to start in late 2025 and finish in late 2026 'if all goes well'. Quotes a July 2024 parliamentary answer by the transport minister that apps like TFI Live 'cannot display a service as cancelled if it has not received the appropriate cancellation message from the operator'.
Dublin Inquirer, on the no-show bus tracker, Aug 2025 (media)
- Stable source ID
src-b5a0216ee87dd587- Publisher
- Name not classified · dublininquirer.com
- Type / language
- web-page · language not classified
- Published
- 2025-08-06
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-09-25
- Dossier created
- 2026-09-25
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Report of 6 August 2025: an analysis of more than 2,600 reports to noshowbus.ie, a site collecting reports of ghost and cancelled buses since October 2024, for 1 January to 5 August 2025. The NTA explains ghost buses as operators not cancelling a service in time for the RTPI system to pick it up, describes replacing antennae on about 200 buses, and says the new AVL system will replace 'the five disparate systems currently in use'.
Newstalk, Dublin Bus CEO on replacing the real-time system, Aug 2024 (media)
- Stable source ID
src-6c79395c5fca3c24- Publisher
- Name not classified · newstalk.com
- Type / language
- web-page · language not classified
- Published
- 2024-08-16
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-09-25
- Dossier created
- 2026-09-25
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Interview report of 16 August 2024: Dublin Bus chief executive Billy Hann says the technology is 'over 15 years old', the antennas on the buses 'aren't as sensitive as they need to be', and the real-time system is 'independently audited by the National Transport Authority' with an accuracy rate of around 96%.
- Claims linked
The Irish Times, on bus penalties and ghost buses, Feb 2025 (media)
- Stable source ID
src-b353db36115e7f12- Publisher
- Name not classified · irishtimes.com
- Type / language
- web-page · language not classified
- Published
- 2025-02-06
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-09-25
- Dossier created
- 2026-09-25
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Report of 6 February 2025 on complaints about 'ghost' or 'disappearing' buses on the on-street screens and the TFI app. A Dublin Bus spokeswoman says its real-time passenger information accuracy has been 'at a record high of 98 per cent' since the beginning of 2025.
- Claims linked
Newstalk, on ghost buses at the start of the school year, Sep 2026 (media)
- Stable source ID
src-dc396746d32e7b60- Publisher
- Name not classified · newstalk.com
- Type / language
- web-page · language not classified
- Published
- 2026-09-11
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-09-25
- Dossier created
- 2026-09-25
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Report of 11 September 2026: a Glasnevin parent describes buses that appear due within a minute or two on the signs and app and then vanish, several times in the first week of the school term.
- Claims linked
Radio Nova, on Dublin Bus and the new AVL system, Sep 2026 (media)
- Stable source ID
src-d7e63745cb8471df- Publisher
- Name not classified · nova.ie
- Type / language
- web-page · language not classified
- Published
- 2026-09-11
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-09-25
- Dossier created
- 2026-09-25
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Report of 11 September 2026, relaying Newstalk: Dublin Bus director Gwen Morgan says TFI Live is not a Dublin Bus app and that it 'will be improved when we get the new automatic vehicle location system in place'; the NTA's new system is described as still to come into operation.
- Claims linked
Known limits of this passport
- Publisher names and source languages have not yet been classified; domains are recorded without guessing.
- Existing source notes are descriptive locators, not page- or paragraph-exact citations.
- A missing archive, publication date or content hash is shown as null rather than inferred.
- The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim.
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📎 Cite this project
1001 Smart Cities (2026). “Dublin Real-Time Passenger Information & the NTA's Open GTFS-Realtime Feed” — Dublin, Ireland. The Smart City Atlas. https://1001smartcities.org/projects/dublin-rtpi-open-transit-data/ (last verified 2026-09-25). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.
