{ "schemaVersion": "1.0.0", "constitutionVersion": "1.0.0", "createdAt": "2026-08-12T00:00:00Z", "description": "Append-only Evidence Passport records. Old revisions are immutable; corrections create a new revision and preserve the previous permalink.", "entity": { "type": "project", "id": "greater-manchester-traffic-signal-control", "title": "TfGM Urban Traffic Control: Greater Manchester's Adaptive Signals", "canonicalUrl": "https://1001smartcities.org/projects/greater-manchester-traffic-signal-control/" }, "currentRevisionId": "2026-10-16-baseline", "revisions": [ { "id": "2026-10-16-baseline", "createdAt": "2026-10-16T10:01:48Z", "effectiveAt": "2026-10-16", "changeType": "baseline", "summary": "Created the first structured Evidence Passport with 26 claims and 13 source dossiers.", "preparedBy": { "type": "automation", "label": "AI-assisted evidence preparation", "humanApproved": false }, "review": { "status": "unreviewed", "by": null, "date": null, "note": "Awaiting operator and domain-expert review; publication of this revision implies neither." }, "changes": [ { "operation": "add", "path": "/evidencePassport", "summary": "Added claim-level evidence mapping and source dossiers." }, { "operation": "add", "path": "/revisionHistory", "summary": "Established a permanent, hash-addressed baseline revision." } ], "snapshotHash": "sha256:8a36399e4f2ccaa3d1f5e1dec2041b1db0ea4bb79ac005f27f4add6d6ecaad57", "snapshot": { "asOf": "2026-10-16", "projectFingerprint": "sha256:d1c02faffe71a439a44b04d0dff8e420578260f1e972db2adcedf868ff976db0", "assurance": { "status": "unreviewed", "scope": "evidence-passport-revision", "statement": "AI-assisted structural preparation. This revision has not been reviewed by a human or subject-matter expert.", "machineChecks": [ "schema", "publication-diff-contract", "material-project-fingerprint", "claim-text-drift", "source-reference-resolution", "complete-source-dossier", "snapshot-hash" ] }, "projectState": { "status": "live", "outcome": "ongoing", "evidenceGrade": "official", "timeline": { "started": null, "ended": null } }, "governance": { "operator": "Transport for Greater Manchester (Urban Traffic Control and Control Centre), for the ten Greater Manchester councils; AI signal-control trial with Vivacity Labs; Green Light pilot with Google", "actorTypes": [ "regional-government", "city-government", "national-government", "private" ], "fundingModel": "public", "fundingDescription": "Run by TfGM for the ten district councils. Adaptive upgrades funded by £5.6m of Local Growth Deal money (2018) and £5.63m from the DfT's Traffic Signal Obsolescence Grant and Green Light Fund (2024); a reported £500,000 DfT award to Manchester City Council for cloud-hosted UTC SCOOT (2022). The Smart Junctions AI trial was co-funded by Innovate UK and DCMS's 5G Create fund.", "cost": null, "ownership": null, "decisionRights": null, "exitConditions": null }, "claims": [ { "id": "clm-433aa3f420045c69", "field": "snippet", "text": "Transport for Greater Manchester's Urban Traffic Control team runs the traffic signals of all ten Greater Manchester councils, Manchester included", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-2e512fbc0ccc263c" ], "supportNote": "TfGM's page says its Urban Traffic Control team provides the signal control service to the ten district councils of Greater Manchester, of which Manchester is one, and that TfGM is responsible for permanent traffic signals in Greater Manchester.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-d5f4936731d6d00b", "field": "snippet", "text": "more than 2,400 installations, 985 of them pedestrian crossings", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-2e512fbc0ccc263c" ], "supportNote": "The page gives more than 2,400 installations and says the 2,400 sets of signals include 985 pedestrian crossings (Puffins, Pelicans, Toucans and Pegasus).", "caveat": "The figure counts installations, including standalone crossings, not junctions; TfGM and press reports also give 2,500 sets of signals.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-7840464c54a25b39", "field": "snippet", "text": "operated from TfGM's Control Centre", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-2e512fbc0ccc263c" ], "supportNote": "The page says the signal network is operated and controlled by UTC through TfGM's Control Centre using SCOOT and MOVA.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-c27e5f47ae5363a4", "field": "snippet", "text": "operating around the clock since April 2018", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-de07665e5ad798b2" ], "supportNote": "The committee report says that in April 2018 TfGM's Control Centre transitioned to 24/7 operation and alters signal timings to improve vehicle flows.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-723e7aac872b9676", "field": "snippet", "text": "Adaptive control comes from SCOOT, which coordinates groups of signals from vehicle detectors, and MOVA at single junctions", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-b52e656856346df3", "src-f609f96b5681a822" ], "supportNote": "TfGM's engineer explains that SCOOT detects vehicles on the approach, feeds detection from multiple junctions into a central model, and that MOVA controls one junction at a time; Place North West describes SCOOT as groups of signals working together and MOVA as used at standalone junctions.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-9af7a7c6bf8e8364", "field": "snippet", "text": "in November 2019 TfGM put 47% of signalised junctions under such smart control", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-de07665e5ad798b2" ], "supportNote": "The November 2019 report says there are over 2,400 signalised junctions in Greater Manchester, 47% operated by smart signal technology that responds in real time to traffic volumes.", "caveat": "Later counts by TfGM's engineer use different units: over 1,250 adaptive sites (1,000 SCOOT, 250 MOVA) in April 2021, and over 750 junctions on SCOOT and over 250 on MOVA in August 2021. No later share was found.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-9c740babe2909118", "field": "snippet", "text": "against a 2018 target of 70%", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-f609f96b5681a822" ], "supportNote": "Place North West reports that with £5.6m of Growth Deal funding SCOOT and MOVA were due to be rolled out across 70% of Greater Manchester's signal-controlled junctions.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-59c64e5b173dd7b8", "field": "snippet", "text": "Both detect vehicles, not people on foot or bike.", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-b52e656856346df3" ], "supportNote": "TfGM's ITS engineer writes that SCOOT and MOVA control signals based on vehicles detected on the approach, and that their weakness is the inability to incorporate pedestrians and cyclists into their algorithms.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-73608ba03c08a057", "field": "snippet", "text": "From 2020 a trial let a Vivacity Labs AI agent, fed by video sensors, run signals", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-366e09cc1ab73441", "src-b52e656856346df3" ], "supportNote": "CiTTi reports that Vivacity's AI signal control went live early in 2020; TfGM's engineer describes Vivacity control units that let a reinforcement-learning agent take control of signal timings using inputs from AI sensors.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-f36dc8baa9bbed91", "field": "snippet", "text": "in Salford and on the Manchester–Salford border", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-366e09cc1ab73441", "src-5a567169f7fcf845", "src-571ce225c4a41f20" ], "supportNote": "CiTTi reports control of three neighbouring junctions in the Blackfriars area of Salford from September 2020; Vivacity says the system was then scaled to five junctions along the main orbital route on the Manchester Salford border, and its TfGM page says the technology was deployed to control signals in Salford.", "caveat": "The project's sensors extended into Manchester city centre, and a 2020 report said it would scale to 20 junctions in Manchester by the end of 2021; no source confirms that expansion.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-ffdb89387c91ac6f", "field": "snippet", "text": "Vivacity's sensors also count road users for TfGM across the region: counting, not control.", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-571ce225c4a41f20" ], "supportNote": "The supplier's TfGM page says TfGM awarded Vivacity a three-year call-off contract for traffic monitoring across the region and lists 200+ sensors since 2022 for active travel, network monitoring and school streets, while naming Salford as where the technology controls signals.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-f050db151b206b93", "field": "impact", "text": "In a four-week 2019 pilot on the A6 Stockport Road, SCOOT gave late-running 192 buses extra green at 14 sets of signals between Stockport and Manchester", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-e2d4c2ab89bf49dc" ], "supportNote": "Place North West reports the four-week pilot on the A6 Stockport Road, in which SCOOT extended green time for the 192 at 14 sets of lights between Stockport and Manchester based on each bus's lateness.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-b24bd72bc1579896", "field": "impact", "text": "11.8% of the priority messages the signals received led to green time for a late bus, with an average saving of 31 seconds per junction, by TfGM's count", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-e2d4c2ab89bf49dc" ], "supportNote": "The report gives the pilot's results: of all messages received by the signals, 11.8% resulted in priority for buses running behind schedule, with an average saving of 31 seconds per junction; it attributes the figures to TfGM.", "caveat": "TfGM's own figures from a four-week pilot; the method behind the 31-second saving was not published.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-c3557c680c8755ad", "field": "impact", "text": "TfGM later told its transport committee the A6 scheme had run at 26 junctions", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-de07665e5ad798b2" ], "supportNote": "The November 2019 committee report says TfGM successfully piloted a SCOOT bus-priority scheme at 26 junctions on the A6 Hazel Grove to Manchester corridor.", "caveat": "The July 2019 report of the pilot names 14 sets of signals; the sources do not reconcile the two counts.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-fd0f93708ca4b871", "field": "impact", "text": "\"without any adverse impact to general traffic\"", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-de07665e5ad798b2" ], "supportNote": "The report says extra green went to late buses where the system detected spare capacity based on real-time traffic flows, without any adverse impact to general traffic; it gives no measurement behind that statement.", "caveat": "The operator's statement to its committee; no measurement is given.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-e42816cfae528cae", "field": "impact", "text": "planned to extend it to A635 Ashton Old Road and A5103 Princess Road", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-de07665e5ad798b2" ], "supportNote": "The report says the pilot was planned to be rolled out across several other corridors, including A635 Ashton Old Road and A5103 Princess Road.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-5b35d9138c1d2ec6", "field": "impact", "text": "Vivacity reports a 23% cut in journey time across a single junction \"in Manchester\" under its AI control", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-8e057b05d607d51d", "src-5a567169f7fcf845" ], "supportNote": "Vivacity's 2022 post says that in Manchester Smart Junctions achieved a 23% reduction in journey time across a single junction; its 2021 post says real-world trials reduced journey times through a junction by an average of 23%.", "caveat": "The supplier's own figure; the junction is not named, and the junctions under AI control were in Salford and on the Manchester–Salford border.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-d1b76472ef5d2087", "field": "impact", "text": "In TfGM's 2023 pilot with Google's Green Light, recommended timing changes at one junction brought an average improvement of 9% in the morning peak and 18% in the afternoon peak", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-657417315f57b702" ], "supportNote": "Road Safety GB reports that recommended changes at one junction led to an average improvement of 9% during the morning peak period and 18% during the afternoon peak period.", "caveat": "Reported without naming the junction or the measure that improved.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-3ec01c735fd28386", "field": "impact", "text": "many recommendations were not applied, because the signals were giving priority to buses and pedestrians or discouraging rat-running", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-657417315f57b702" ], "supportNote": "The report says that in many instances signals are used to give priority to buses or pedestrians or to discourage rat-running, so Google's recommendations did not always lead to a change in signal timings.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-8b03ab5489042f13", "field": "impact", "text": "None of these figures comes from an independent evaluation, and neither the supplier nor the Green Light report names the junction; the Green Light report does not name the measure either.", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-8e057b05d607d51d", "src-657417315f57b702", "src-e2d4c2ab89bf49dc" ], "supportNote": "Each figure is published by TfGM or by Vivacity, or reported from TfGM's announcement; the Vivacity post and the Green Light report name neither the junction nor, in Green Light's case, the measure. A statement about what the sources contain, so no single passage carries it.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-62b54b12774abb19", "field": "lesson", "text": "Central adaptive control is a mature instrument with a built-in bias.", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-1c165dcaefe51299", "src-b52e656856346df3" ], "supportNote": "TfGM's engineer says the logic behind SCOOT and MOVA has largely remained the same for three or four decades, and that signal control has historically been vehicle-first.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-93793fd9a25284b9", "field": "lesson", "text": "TfGM's own engineer wrote in 2021 that SCOOT and MOVA cannot bring pedestrians and cyclists into their algorithms", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-b52e656856346df3" ], "supportNote": "The April 2021 comment by TfGM's ITS engineer names the inability to incorporate pedestrians and cyclists into their algorithms as a weakness of SCOOT and MOVA.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-c6ec2f3ae17d0b7c", "field": "lesson", "text": "and that political appetite had kept signal control vehicle-first", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-b52e656856346df3" ], "supportNote": "The same comment says political will and appetite have contributed to historically maintaining a vehicle-first approach to signal control, though attitudes were starting to change.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-735992a8cd00873b", "field": "lesson", "text": "The region's answer was to add video sensors and trial an AI agent, promising an evaluation that would weigh pedestrians, cycles, buses and cars rather than car traffic alone.", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-b52e656856346df3" ], "supportNote": "The comment describes the Smart Junctions sensors and the reinforcement-learning agent, and says evaluation will take account of pedestrians, cycles, buses and cars rather than only the impact on car traffic.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-8e53cfcffb17be08", "field": "lesson", "text": "The figures in circulation are the supplier's and the operator's.", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-8e057b05d607d51d", "src-e2d4c2ab89bf49dc", "src-657417315f57b702" ], "supportNote": "The journey-time figure is Vivacity's own; the bus-priority and Green Light figures are TfGM's, reported by Place North West and Road Safety GB. A summary of who publishes the figures, so no single passage carries it.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-ff8fc97a19303bc1", "field": "lesson", "text": "the system already in place can be told whose delay counts", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-e2d4c2ab89bf49dc" ], "supportNote": "In the A6 pilot the existing SCOOT system prioritised the 192 at each set of lights based on the lateness of each bus.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } } ], "sources": [ { "id": "src-2e512fbc0ccc263c", "title": "Transport for Greater Manchester — Traffic signals in Greater Manchester", "url": "https://tfgm.com/roads/traffic-signals", "publisher": { "name": null, "domain": "tfgm.com", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-433aa3f420045c69", "clm-d5f4936731d6d00b", "clm-7840464c54a25b39" ], "temporal": { "publishedAt": null, "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "record-date-only" }, "locator": { "type": "descriptive-source-note", "value": "TfGM's standing page on its Urban Traffic Control (UTC) team: a signal control service to the ten district councils of Greater Manchester and Highways England; more than 2,400 installations, which TfGM calls the largest number in the UK outside London, operated and controlled through TfGM's Control Centre with SCOOT and MOVA; 985 of the 2,400 sets of signals are pedestrian crossings; UTC also maintains variable message signs, car park signs and automatic traffic count sites.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-de07665e5ad798b2", "title": "Greater Manchester Combined Authority — Highways and Congestion Update, Greater Manchester Transport Committee (8 Nov 2019)", "url": "https://democracy.greatermanchester-ca.gov.uk/documents/s3211/08%20GMTC%2020191108%20Highways%20and%20Congestion.pdf", "publisher": { "name": null, "domain": "democracy.greatermanchester-ca.gov.uk", "classification": "not-classified" }, "sourceType": "pdf", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-c27e5f47ae5363a4", "clm-9af7a7c6bf8e8364", "clm-c3557c680c8755ad", "clm-fd0f93708ca4b871", "clm-e42816cfae528cae" ], "temporal": { "publishedAt": "2019-11-08", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Report by TfGM's chief operating officer on the Congestion Deal launched in March 2018: the Control Centre moved to 24/7 operation in April 2018 and alters signal timings to improve vehicle flows; a SCOOT bus-priority pilot ran at 26 junctions on the A6 Hazel Grove to Manchester corridor, giving extra green to late buses where spare capacity was detected 'without any adverse impact to general traffic', with roll-out planned to A635 Ashton Old Road and A5103 Princess Road; over 2,400 signalised junctions, 47% under smart (adaptive) control, with 97 more junctions in an installation programme, 46 of them commissioned.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-f609f96b5681a822", "title": "Place North West — TfGM gets £5.6m for smart traffic light programme (4 Jul 2018)", "url": "https://www.placenorthwest.co.uk/tfgm-gets-5-6m-for-smart-traffic-light-programme/", "publisher": { "name": null, "domain": "placenorthwest.co.uk", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-723e7aac872b9676", "clm-9c740babe2909118" ], "temporal": { "publishedAt": "2018-07-04", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Reports £5.6m of Growth Deal funding for SCOOT, which coordinates groups of signals from sensor data, and MOVA at standalone junctions, both 'due to be rolled out across 70% of Greater Manchester's signal-controlled junctions'; TfGM says SCOOT has been shown to increase traffic performance by up to 15% compared with fixed-time lights.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-e2d4c2ab89bf49dc", "title": "Place North West — TfGM looks to traffic tech to boost late buses (3 Jul 2019)", "url": "https://www.placenorthwest.co.uk/tfgm-looks-to-traffic-tech-to-boost-late-buses/", "publisher": { "name": null, "domain": "placenorthwest.co.uk", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-f050db151b206b93", "clm-b24bd72bc1579896", "clm-8b03ab5489042f13", "clm-8e53cfcffb17be08", "clm-ff8fc97a19303bc1" ], "temporal": { "publishedAt": "2019-07-03", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Reports a four-week TfGM pilot on the A6 Stockport Road in which SCOOT extended green time for late-running 192 buses at 14 sets of traffic lights between Stockport and Manchester, based on each bus's lateness; 11.8% of messages received by the signals resulted in priority, with an average saving of 31 seconds per junction (8.2% and 12.9% in the weekday morning and evening peaks, 11.5% at weekends).", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-366e09cc1ab73441", "title": "CiTTi Magazine — Transport for Greater Manchester rolls out AI-controlled smart traffic junctions (6 Nov 2020)", "url": "https://www.cittimagazine.co.uk/news/active-travel/transport-for-greater-manchester-rolls-out-ai-controlled-smart-traffic-junctions.html", "publisher": { "name": null, "domain": "cittimagazine.co.uk", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-73608ba03c08a057", "clm-f36dc8baa9bbed91" ], "temporal": { "publishedAt": "2020-11-06", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Reports that Vivacity Labs' AI signal control went live early in 2020 and in September 2020 began simultaneously controlling three neighbouring junctions in the Blackfriars area of Salford; part of a three-year Innovate UK co-funded programme, with further money from DCMS's 5G Create fund; the project 'will scale up to an area of 20 junctions in Manchester by the end of 2021'.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-b52e656856346df3", "title": "CiTTi Magazine — Smart junctions: the future of signal control, by David Watts of TfGM (9 Apr 2021)", "url": "https://www.cittimagazine.co.uk/comment/smart-junctions-the-future-of-signal-control.html", "publisher": { "name": null, "domain": "cittimagazine.co.uk", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-723e7aac872b9676", "clm-59c64e5b173dd7b8", "clm-73608ba03c08a057", "clm-62b54b12774abb19", "clm-93793fd9a25284b9", "clm-c6ec2f3ae17d0b7c", "clm-735992a8cd00873b" ], "temporal": { "publishedAt": "2021-04-09", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Comment by TfGM's ITS engineer: TfGM operates over 1,250 adaptive signal control systems (1,000 SCOOT sites and 250 MOVA sites); SCOOT feeds vehicle detection from multiple junctions into a central model, MOVA controls one junction at a time; their weakness is the inability to incorporate pedestrians and cyclists; political appetite kept signal control vehicle-first; the Smart Junctions project installed over 100 AI sensors across over 13 junctions and two crossings in Salford and Manchester city centre and let a reinforcement-learning agent from Vivacity take control of signal timings; evaluation was to consider pedestrians, cycles, buses and cars rather than car traffic only.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-1c165dcaefe51299", "title": "CiTTi Magazine — Green means go: extended interview with David Watts, TfGM (26 Aug 2021)", "url": "https://www.cittimagazine.co.uk/features/green-means-go-extended-interview-with-david-watts-transport-for-greater-manchester.html", "publisher": { "name": null, "domain": "cittimagazine.co.uk", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-62b54b12774abb19" ], "temporal": { "publishedAt": "2021-08-26", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Interview with TfGM's ITS engineer on the three-year Smart Junctions project with Vivacity Labs: around 200 sensors give insight into pedestrian movements; the AI control is compared directly with SCOOT and MOVA in one of Greater Manchester's larger SCOOT regions; TfGM operates over 750 junctions on SCOOT and over 250 on MOVA; the Covid-19 pandemic curtailed some comparison opportunities.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-5a567169f7fcf845", "title": "Vivacity Labs — Smart Junctions: three years of AI traffic signal control (20 Oct 2021)", "url": "https://vivacitylabs.com/smart-junctions-traffic-signal-control/", "publisher": { "name": null, "domain": "vivacitylabs.com", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-f36dc8baa9bbed91", "clm-5b35d9138c1d2ec6" ], "temporal": { "publishedAt": "2021-10-20", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Supplier's account of the Innovate UK co-funded project with TfGM and Immense Simulations: after controlling three neighbouring junctions, the system was scaled to control five junctions along 'a whole key corridor on the main orbital route on the Manchester Salford border'; claims real-world trials reduced journey times through a junction by an average of 23%.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-8e057b05d607d51d", "title": "Vivacity Labs — VivaCity present Smart Junctions 5G traffic solution at UK5G event (13 Apr 2022)", "url": "https://vivacitylabs.com/smart-junctions-uk5g/", "publisher": { "name": null, "domain": "vivacitylabs.com", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-5b35d9138c1d2ec6", "clm-8b03ab5489042f13", "clm-8e53cfcffb17be08" ], "temporal": { "publishedAt": "2022-04-13", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Supplier's news post: 'in Manchester Smart Junctions achieved a 23% reduction in journey time across a single junction', illustrated with a before/with chart; the junction is not named.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-571ce225c4a41f20", "title": "Vivacity Labs — Transport for Greater Manchester portal", "url": "https://info.vivacitylabs.com/transport-for-greater-manchester", "publisher": { "name": null, "domain": "info.vivacitylabs.com", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-f36dc8baa9bbed91", "clm-ffdb89387c91ac6f" ], "temporal": { "publishedAt": null, "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "record-date-only" }, "locator": { "type": "descriptive-source-note", "value": "Supplier's customer page for TfGM: TfGM awarded Vivacity a three-year call-off contract for traffic monitoring across the region, available to local authority partners; the technology 'was also deployed to control traffic signals in Salford'; 200+ sensors rolled out since 2022 for active travel, Smart Junctions, network monitoring and school streets.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-657417315f57b702", "title": "Road Safety GB — TfGM teams up with Google to use AI to improve traffic flow (27 Oct 2023)", "url": "https://roadsafetygb.org.uk/news/our-aim-is-to-make-the-network-run-as-efficiently-and-sustainably-as-possible/", "publisher": { "name": null, "domain": "roadsafetygb.org.uk", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-d1b76472ef5d2087", "clm-3ec01c735fd28386", "clm-8b03ab5489042f13", "clm-8e53cfcffb17be08" ], "temporal": { "publishedAt": "2023-10-27", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Reports TfGM's Green Light pilot with Google: Google reviewed traffic movements and recommended signal timing changes; because signals often give priority to buses or pedestrians or discourage rat-running, recommendations did not always lead to changes; where they did, changes at one junction gave an average improvement of 9% in the morning peak and 18% in the afternoon peak; quotes TfGM's analysis and reporting manager on a network of 2,400 traffic signals.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-784cc4c59e10f49a", "title": "Traffic Technology Today — TRL Software to provide active-travel traffic management for Manchester (19 Oct 2022)", "url": "https://www.traffictechnologytoday.com/news/traffic-management/trl-software-to-provide-active-travel-traffic-management-for-manchester.html", "publisher": { "name": null, "domain": "traffictechnologytoday.com", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "background", "claimRefs": [], "temporal": { "publishedAt": "2022-10-19", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Trade report that TRL Software will supply its UTC SCOOT 7 software, with pedestrian-priority functions, in a programme of works with TfGM; quotes TRL that TfGM has used its UTC since 2019; reports that Manchester City Council was awarded £500,000 by the DfT from the Traffic Signals Maintenance funding call to help deploy cloud-hosted UTC SCOOT until 2024.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-f110824400941082", "title": "Department for Transport — Traffic Signal Obsolescence Grant and Green Light Fund allocations (20 Mar 2024)", "url": "https://www.gov.uk/government/publications/traffic-signal-obsolescence-grant-and-green-light-fund-allocations/traffic-signal-obsolescence-grant-and-green-light-fund-allocations", "publisher": { "name": null, "domain": "gov.uk", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "background", "claimRefs": [], "temporal": { "publishedAt": "2024-03-20", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Allocation table for the £30m Traffic Signal Obsolescence Grant and £20m Green Light Fund: Greater Manchester Combined Authority (TfGM) receives £5,626,838.37 in total, of which £5,000,000 from the competitive element.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } } ], "coverage": { "claimsTotal": 26, "claimsMapped": 26, "sourcesTotal": 13, "sourcesUsedByClaims": 11, "sourcesWithPublicationDate": 11, "sourcesWithArchive": 0, "sourcesWithExactLocator": 0, "sourcesWithContentHash": 0 }, "limits": [ "Publisher names and source languages have not yet been classified; 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