{
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 "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": "belgrade-adaptive-traffic",
  "title": "Belgrade Sitraffic Adaptive Traffic Control",
  "canonicalUrl": "https://1001smartcities.org/projects/belgrade-adaptive-traffic/"
 },
 "currentRevisionId": "2026-08-21-unsourced-text-correction",
 "revisions": [
  {
   "id": "2026-08-21-evidence-baseline",
   "createdAt": "2026-08-21T23:30:00Z",
   "effectiveAt": "2026-07-19",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 11 claims and 3 source dossiers.",
   "preparedBy": {
    "type": "automation",
    "label": "AI-assisted evidence preparation",
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   },
   "review": {
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    "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."
    }
   ],
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    "asOf": "2026-07-19",
    "projectFingerprint": "sha256:4051bcc4c485c25d3e6315bca385bb88203a33f7f139f82e92a97a6379e0fe90",
    "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",
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      "claim-text-drift",
      "source-reference-resolution",
      "complete-source-dossier",
      "snapshot-hash"
     ]
    },
    "projectState": {
     "status": "live",
     "outcome": "ongoing",
     "evidenceGrade": "media",
     "timeline": {
      "started": 2019,
      "ended": null
     }
    },
    "governance": {
     "operator": "City of Belgrade — Secretariat for Transport",
     "actorTypes": [
      "city-government"
     ],
     "fundingModel": "public",
     "fundingDescription": null,
     "cost": "≈RSD 2.8bn (≈€24M), phase 1",
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-44a51e72719bcd42",
      "field": "snippet",
      "text": "Since 2019 Belgrade has been retrofitting its junctions",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-b2fb2c3522545e89",
       "src-9b53068bf63ffc97"
      ],
      "supportNote": "Balkan Green Energy News is dated 30 September 2019 and reports the agreement signed that day to introduce the adaptive traffic control system in Belgrade. Kurir confirms the starting point retrospectively in 2022: the city “krajem 2019. godine potpisao ugovor za implementaciju sistema adaptibilnog upravljanja saobraćajem” (signed a contract at the end of 2019 to implement an adaptive traffic management system).",
      "caveat": "Both sources date the contract, not the first junction actually retrofitted; neither says when work began on site.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-ef66081fd8bf4a23",
      "field": "snippet",
      "text": "with Siemens Mobility's Sitraffic Scala adaptive control",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-0eed19fae50a8e48",
       "src-b2fb2c3522545e89"
      ],
      "supportNote": "The Yunex Traffic country page names the product: continuous system operation monitoring and management for mobility operators is enabled through “Sitraffic Scala”, described as an “adaptive traffic control system for the city road network”. Balkan Green Energy News names Siemens Mobility as a signing party to the 2019 agreement.",
      "caveat": "Neither source states product and vendor together: the Yunex page names Sitraffic Scala but not Siemens Mobility, while the 2019 article names Siemens Mobility but never uses the product name.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-f488f51d67250151",
      "field": "snippet",
      "text": "retimes signals in real time from live traffic data",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-0eed19fae50a8e48"
      ],
      "supportNote": "The operator page describes an “adaptive traffic control system for the city road network” driven by “Real-time traffic data”, improving parameters including “shortened travel times, minimized number of stops, reduced exhaust emissions and urban noise pollution”.",
      "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-ba32ab0cf0888c20",
      "field": "snippet",
      "text": "gives trams priority",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-0eed19fae50a8e48",
       "src-b2fb2c3522545e89"
      ],
      "supportNote": "Yunex states that “innovative technologies, including tram prioritization, are being implemented on over 300 intersections in Belgrade”. Balkan Green Energy News describes the mechanism: “The system will give trams the right of way as soon as they approach intersections.”",
      "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-744fc7e5725c13c0",
      "field": "snippet",
      "text": "280 of the city's roughly 650 signalised intersections were connected by late 2022",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-9b53068bf63ffc97",
       "src-b2fb2c3522545e89"
      ],
      "supportNote": "Kurir, published 25 October 2022, carries the count in its headline: “U Beogradu već 280 raskrsnica sa pametnim semaforima” (Belgrade already has 280 intersections with smart traffic lights). The denominator comes from Balkan Green Energy News: “Belgrade currently has a total of 650 signalized intersections.”",
      "caveat": "Kurir gives 280 as of 25 October 2022; Yunex's undated page says 'over 300'. The entry now states the sourced figure rather than 'more than 280'.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-a6ad140c2698e8ad",
      "field": "snippet",
      "text": "with the rollout continuing under Yunex Traffic",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-0eed19fae50a8e48"
      ],
      "supportNote": "The page is Yunex Traffic's own Serbia country page and describes the Belgrade deployment in the progressive: technologies including tram prioritisation “are being implemented on over 300 intersections in Belgrade”, so the work is presented as ongoing and delivered by Yunex Traffic, the Siemens Mobility spin-off.",
      "caveat": "The page is undated, so it shows that Yunex Traffic presents the rollout as ongoing but fixes no point in time; it also does not describe the handover from Siemens Mobility to Yunex Traffic.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-1250e621d5b50744",
      "field": "impact",
      "text": "City analysis reported morning travel time on Bulevar kralja Aleksandra cut about 26%",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-9b53068bf63ffc97"
      ],
      "supportNote": "Kurir reports: “vreme putovanja i broj zaustavljanja u jutarnjem špicu u Bulevaru kralja Aleksandra, u smeru od Cvetkove pijace ka Tašmajdanskom parku smanjeno za čak 26 procenata” – travel time and the number of stops in the morning peak on Bulevar kralja Aleksandra, in the direction from Cvetkova pijaca towards Tašmajdan park, reduced by as much as 26 per cent.",
      "caveat": "The 26 per cent covers travel time and the number of stops together, not travel time alone, and applies to one direction of one boulevard in the morning peak. It is the city's own analysis relayed by a newspaper, with no independent measurement and no stated baseline.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-c66949cc15c9ed26",
      "field": "impact",
      "text": "tram journey times on prioritised routes shortened by up to 40%",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-9b53068bf63ffc97"
      ],
      "supportNote": "Kurir reports: “U Ruzveltovoj ulici tramvajima je vreme putovanja skraćeno i do 40 odsto u proseku” – in Ruzveltova street tram journey time was shortened by up to 40 per cent on average.",
      "caveat": "The source names a single street, Ruzveltova, not “prioritised routes” in the plural, and pairs “up to” with “on average” without saying over what period or against what baseline. Again a city figure relayed by the newspaper, not an independent measurement.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-19e631368d2f316d",
      "field": "lesson",
      "text": "The 322-junction rollout",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-b2fb2c3522545e89",
       "src-9b53068bf63ffc97"
      ],
      "supportNote": "Balkan Green Energy News states the scope of phase 1: “The three-year project is to secure the adaptive traffic control system at 322 signalized intersections in Belgrade by 2021.” Kurir repeats the same figure in 2022: the contract of late 2019 covered “322 raskrsnice”.",
      "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-7d133b95f88e6146",
      "field": "lesson",
      "text": "first promised for 2021",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-b2fb2c3522545e89"
      ],
      "supportNote": "The 2019 article gives the target date and attributes it: “The three-year project is to secure the adaptive traffic control system at 322 signalized intersections in Belgrade by 2021, said Vesić.”",
      "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-d71a852700271db4",
      "field": "lesson",
      "text": "slipped by several years",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-9b53068bf63ffc97",
       "src-0eed19fae50a8e48"
      ],
      "supportNote": "Kurir shows the target missed: on 25 October 2022, nearly a year past the 2021 deadline, 280 of the contracted 322 intersections were connected. The undated Yunex Traffic page still describes the technologies as “being implemented”, so the rollout had not closed out at the time of writing.",
      "caveat": "No source states a delay, let alone one of several years. The slippage is an inference from two datapoints – the 2021 target in the 2019 agreement, and 280 of 322 connected in late 2022 with work continuing – and roughly one year lies between them, so “several years” is carried by neither source.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     }
    ],
    "sources": [
     {
      "id": "src-0eed19fae50a8e48",
      "title": "Yunex Traffic — Serbia (operator)",
      "url": "https://www.yunextraffic.com/worldwide/serbia/",
      "publisher": {
       "name": null,
       "domain": "yunextraffic.com",
       "classification": "not-classified"
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      "language": "und",
      "role": "claim-evidence",
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       "clm-ef66081fd8bf4a23",
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       "clm-a6ad140c2698e8ad",
       "clm-d71a852700271db4"
      ],
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       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-19",
       "dossierCreatedAt": "2026-08-21",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Sitraffic Scala, 300+ intersections, tram prioritisation; delivered by the Siemens Mobility spin-off Yunex Traffic",
       "exact": false
      },
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       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-b2fb2c3522545e89",
      "title": "Balkan Green Energy News — Siemens Belgrade deal",
      "url": "https://balkangreenenergynews.com/siemens-signs-deal-to-introduce-adaptive-traffic-control-system-in-belgrade/",
      "publisher": {
       "name": null,
       "domain": "balkangreenenergynews.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-44a51e72719bcd42",
       "clm-ef66081fd8bf4a23",
       "clm-ba32ab0cf0888c20",
       "clm-744fc7e5725c13c0",
       "clm-19e631368d2f316d",
       "clm-7d133b95f88e6146"
      ],
      "temporal": {
       "publishedAt": "2019-09-30",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-19",
       "dossierCreatedAt": "2026-08-21",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "30 Sep 2019 agreement: RSD 2.8bn, 322 of 650 intersections, 3-year project; projected 10–15% congestion/travel-time cut",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-9b53068bf63ffc97",
      "title": "Kurir — 280 smart-signal intersections",
      "url": "https://www.kurir.rs/zabava/auto/4038076/u-beogradu-vec-280-raskrsnica-sa-pametnim-semaforima",
      "publisher": {
       "name": null,
       "domain": "kurir.rs",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-44a51e72719bcd42",
       "clm-744fc7e5725c13c0",
       "clm-1250e621d5b50744",
       "clm-c66949cc15c9ed26",
       "clm-19e631368d2f316d",
       "clm-d71a852700271db4"
      ],
      "temporal": {
       "publishedAt": "2022-10-25",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-19",
       "dossierCreatedAt": "2026-08-21",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "25 Oct 2022: 280 of 322 connected; city analysis −26% on Bul. kralja Aleksandra, trams up to −40%",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     }
    ],
    "coverage": {
     "claimsTotal": 11,
     "claimsMapped": 11,
     "sourcesTotal": 3,
     "sourcesUsedByClaims": 3,
     "sourcesWithPublicationDate": 2,
     "sourcesWithArchive": 0,
     "sourcesWithExactLocator": 0,
     "sourcesWithContentHash": 0
    },
    "limits": [
     "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."
    ]
   }
  },
  {
   "id": "2026-08-21-unsourced-text-correction",
   "createdAt": "2026-08-21T23:45:00Z",
   "effectiveAt": "2026-07-19",
   "changeType": "correction",
   "summary": "Removed or softened wording that no listed source carries, after reading every source while preparing the claim ledger. The 26% covers travel time and stops together in one direction, and the 40% applies to Ruzveltova, not to prioritised routes generally; no source describes a delay of several years.",
   "preparedBy": {
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    "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": "replace",
     "path": "/snapshot/projectFingerprint",
     "summary": "Updated projectFingerprint to the current sourced project record."
    },
    {
     "operation": "replace",
     "path": "/snapshot/claims",
     "summary": "Updated claims to the current sourced project record."
    },
    {
     "operation": "replace",
     "path": "/snapshot/sources",
     "summary": "Updated sources to the current sourced project record."
    }
   ],
   "snapshotHash": "sha256:10b2f4dc0614665a6e0849895099a94fa80f8c32a34040f5faae1c37b491aeee",
   "snapshot": {
    "asOf": "2026-07-19",
    "projectFingerprint": "sha256:206da49ef64452c6d5c1f2602f468d7a1def6d02b1dd23095d93aaad137069fb",
    "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": [
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    },
    "projectState": {
     "status": "live",
     "outcome": "ongoing",
     "evidenceGrade": "media",
     "timeline": {
      "started": 2019,
      "ended": null
     }
    },
    "governance": {
     "operator": "City of Belgrade — Secretariat for Transport",
     "actorTypes": [
      "city-government"
     ],
     "fundingModel": "public",
     "fundingDescription": null,
     "cost": "≈RSD 2.8bn (≈€24M), phase 1",
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-44a51e72719bcd42",
      "field": "snippet",
      "text": "Since 2019 Belgrade has been retrofitting its junctions",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-b2fb2c3522545e89",
       "src-9b53068bf63ffc97"
      ],
      "supportNote": "Balkan Green Energy News is dated 30 September 2019 and reports the agreement signed that day to introduce the adaptive traffic control system in Belgrade. Kurir confirms the starting point retrospectively in 2022: the city “krajem 2019. godine potpisao ugovor za implementaciju sistema adaptibilnog upravljanja saobraćajem” (signed a contract at the end of 2019 to implement an adaptive traffic management system).",
      "caveat": "Both sources date the contract, not the first junction actually retrofitted; neither says when work began on site.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-ef66081fd8bf4a23",
      "field": "snippet",
      "text": "with Siemens Mobility's Sitraffic Scala adaptive control",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-0eed19fae50a8e48",
       "src-b2fb2c3522545e89"
      ],
      "supportNote": "The Yunex Traffic country page names the product: continuous system operation monitoring and management for mobility operators is enabled through “Sitraffic Scala”, described as an “adaptive traffic control system for the city road network”. Balkan Green Energy News names Siemens Mobility as a signing party to the 2019 agreement.",
      "caveat": "Neither source states product and vendor together: the Yunex page names Sitraffic Scala but not Siemens Mobility, while the 2019 article names Siemens Mobility but never uses the product name.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-f488f51d67250151",
      "field": "snippet",
      "text": "retimes signals in real time from live traffic data",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-0eed19fae50a8e48"
      ],
      "supportNote": "The operator page describes an “adaptive traffic control system for the city road network” driven by “Real-time traffic data”, improving parameters including “shortened travel times, minimized number of stops, reduced exhaust emissions and urban noise pollution”.",
      "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-ba32ab0cf0888c20",
      "field": "snippet",
      "text": "gives trams priority",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-0eed19fae50a8e48",
       "src-b2fb2c3522545e89"
      ],
      "supportNote": "Yunex states that “innovative technologies, including tram prioritization, are being implemented on over 300 intersections in Belgrade”. Balkan Green Energy News describes the mechanism: “The system will give trams the right of way as soon as they approach intersections.”",
      "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-744fc7e5725c13c0",
      "field": "snippet",
      "text": "280 of the city's roughly 650 signalised intersections were connected by late 2022",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-9b53068bf63ffc97",
       "src-b2fb2c3522545e89"
      ],
      "supportNote": "Kurir, published 25 October 2022, carries the count in its headline: “U Beogradu već 280 raskrsnica sa pametnim semaforima” (Belgrade already has 280 intersections with smart traffic lights). The denominator comes from Balkan Green Energy News: “Belgrade currently has a total of 650 signalized intersections.”",
      "caveat": "Kurir gives 280 as of 25 October 2022; Yunex's undated page says 'over 300'. The entry now states the sourced figure rather than 'more than 280'.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-a6ad140c2698e8ad",
      "field": "snippet",
      "text": "with the rollout continuing under Yunex Traffic",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-0eed19fae50a8e48"
      ],
      "supportNote": "The page is Yunex Traffic's own Serbia country page and describes the Belgrade deployment in the progressive: technologies including tram prioritisation “are being implemented on over 300 intersections in Belgrade”, so the work is presented as ongoing and delivered by Yunex Traffic, the Siemens Mobility spin-off.",
      "caveat": "The page is undated, so it shows that Yunex Traffic presents the rollout as ongoing but fixes no point in time; it also does not describe the handover from Siemens Mobility to Yunex Traffic.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-8eb237a6526bafe6",
      "field": "impact",
      "text": "City analysis reported travel time and stops together in one direction of Bulevar kralja Aleksandra cut about 26%",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-9b53068bf63ffc97"
      ],
      "supportNote": "Kurir reports: “vreme putovanja i broj zaustavljanja u jutarnjem špicu u Bulevaru kralja Aleksandra, u smeru od Cvetkove pijace ka Tašmajdanskom parku smanjeno za čak 26 procenata” – travel time and the number of stops in the morning peak on Bulevar kralja Aleksandra, in the direction from Cvetkova pijaca towards Tašmajdan park, reduced by as much as 26 per cent.",
      "caveat": "The source's 26% covers travel time and number of stops together, in one direction only — the entry previously attributed it to morning travel time alone.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-4b96554262f421c9",
      "field": "impact",
      "text": "tram journey times on Ruzveltova shortened by up to 40%",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-9b53068bf63ffc97"
      ],
      "supportNote": "Kurir reports: “U Ruzveltovoj ulici tramvajima je vreme putovanja skraćeno i do 40 odsto u proseku” – in Ruzveltova street tram journey time was shortened by up to 40 per cent on average.",
      "caveat": "The 40% applies to Ruzveltova specifically, not to prioritised routes in general.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-19e631368d2f316d",
      "field": "lesson",
      "text": "The 322-junction rollout",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-b2fb2c3522545e89",
       "src-9b53068bf63ffc97"
      ],
      "supportNote": "Balkan Green Energy News states the scope of phase 1: “The three-year project is to secure the adaptive traffic control system at 322 signalized intersections in Belgrade by 2021.” Kurir repeats the same figure in 2022: the contract of late 2019 covered “322 raskrsnice”.",
      "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-7d133b95f88e6146",
      "field": "lesson",
      "text": "first promised for 2021",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-b2fb2c3522545e89"
      ],
      "supportNote": "The 2019 article gives the target date and attributes it: “The three-year project is to secure the adaptive traffic control system at 322 signalized intersections in Belgrade by 2021, said Vesić.”",
      "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-26628e3674890920",
      "field": "lesson",
      "text": "was still well short of that count in late 2022",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-9b53068bf63ffc97",
       "src-0eed19fae50a8e48"
      ],
      "supportNote": "Kurir shows the target missed: on 25 October 2022, nearly a year past the 2021 deadline, 280 of the contracted 322 intersections were connected. The undated Yunex Traffic page still describes the technologies as “being implemented”, so the rollout had not closed out at the time of writing.",
      "caveat": "No source describes a delay of several years: the gap between the 2021 target and Kurir's October 2022 count of 280 is about one year.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     }
    ],
    "sources": [
     {
      "id": "src-0eed19fae50a8e48",
      "title": "Yunex Traffic — Serbia (operator)",
      "url": "https://www.yunextraffic.com/worldwide/serbia/",
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       "domain": "yunextraffic.com",
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       "recordLastVerifiedAt": "2026-07-19",
       "dossierCreatedAt": "2026-08-21",
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       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Sitraffic Scala, 300+ intersections, tram prioritisation; delivered by the Siemens Mobility spin-off Yunex Traffic",
       "exact": false
      },
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     },
     {
      "id": "src-b2fb2c3522545e89",
      "title": "Balkan Green Energy News — Siemens Belgrade deal",
      "url": "https://balkangreenenergynews.com/siemens-signs-deal-to-introduce-adaptive-traffic-control-system-in-belgrade/",
      "publisher": {
       "name": null,
       "domain": "balkangreenenergynews.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
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      ],
      "temporal": {
       "publishedAt": "2019-09-30",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-19",
       "dossierCreatedAt": "2026-08-21",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "30 Sep 2019 agreement: RSD 2.8bn, 322 of 650 intersections, 3-year project; projected 10–15% congestion/travel-time cut",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
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       "contentHash": null,
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      }
     },
     {
      "id": "src-9b53068bf63ffc97",
      "title": "Kurir — 280 smart-signal intersections",
      "url": "https://www.kurir.rs/zabava/auto/4038076/u-beogradu-vec-280-raskrsnica-sa-pametnim-semaforima",
      "publisher": {
       "name": null,
       "domain": "kurir.rs",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
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       "clm-19e631368d2f316d",
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      ],
      "temporal": {
       "publishedAt": "2022-10-25",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-19",
       "dossierCreatedAt": "2026-08-21",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "25 Oct 2022: 280 of 322 connected; city analysis −26% on Bul. kralja Aleksandra, trams up to −40%",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
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      }
     }
    ],
    "coverage": {
     "claimsTotal": 11,
     "claimsMapped": 11,
     "sourcesTotal": 3,
     "sourcesUsedByClaims": 3,
     "sourcesWithPublicationDate": 2,
     "sourcesWithArchive": 0,
     "sourcesWithExactLocator": 0,
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    },
    "limits": [
     "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."
    ]
   }
  }
 ]
}