{
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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": "nyc-connected-vehicle-pilot",
  "title": "NYC Connected Vehicle (V2X) Pilot",
  "canonicalUrl": "https://1001smartcities.org/projects/nyc-connected-vehicle-pilot/"
 },
 "currentRevisionId": "2026-08-20-source-dates",
 "revisions": [
  {
   "id": "2026-08-20-source-dates",
   "createdAt": "2026-08-20T00:00:00Z",
   "effectiveAt": "2026-08-06",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 1 claim and 10 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:d34a09ad1ca9edcf33e47e8edcac4e462a55e780a3e50a36079fbb0874839392",
   "snapshot": {
    "asOf": "2026-08-06",
    "projectFingerprint": "sha256:b9fbc279db65732d407009280883289a27960c6e9eb0efb5ce2c8760e4bf1a0c",
    "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": "completed",
     "outcome": "scaled-back",
     "evidenceGrade": "independent",
     "timeline": {
      "started": 2016,
      "ended": 2021
     }
    },
    "governance": {
     "operator": "New York City Department of Transportation (NYC DOT)",
     "actorTypes": [
      "city-government",
      "national-government",
      "research"
     ],
     "fundingModel": "grant",
     "fundingDescription": "USDOT Connected Vehicle Pilot Deployment Program (federal grant)",
     "cost": "$25M USDOT award (2016)",
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-b1bbfb23f9d83056",
      "field": "impact",
      "text": "Red Light Violation Warning cut red-light running by 41 percent and Lane Change Warning cut the unsafe lane change rate by 46 percent",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-51cc1fd60b8e285d"
      ],
      "supportNote": "Volpe's own assessment of 3,000 equipped vehicles across the 2021 operational year, with a control group whose alerts stayed silent — carried into USDOT's 2024 executive briefing as 'reduced red-light running by 41%' and 'reduced unsafe lane change rate by 46%', both cited to benefit record 2022-B01691.",
      "caveat": "A behavioural surrogate, not a crash count. Volpe analysed data the deployment itself collected, and the alert-response measurement covers a single pandemic-affected 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-50aad1abf4cb48c7",
      "title": "USDOT ITS JPO — Piloting Connected Vehicle Technology in New York City's Dense Urban Setting",
      "url": "https://www.itskrs.its.dot.gov/success-strategies/case-study/piloting-connected-vehicle-technology-new-york-citys-dense-urban",
      "publisher": {
       "name": null,
       "domain": "itskrs.its.dot.gov",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
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       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-06",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Federal programme office case study, the deployment-size source. Verbatim: 'In 2016, the United States Department of Transportation (USDOT) awarded the New York City Department of Transportation (NYCDOT) $25 million'; '3,000 city fleet vehicles that frequent the deployment areas were outfitted with onboard CV technology, and 450 CV-enabled roadside units (RSUs) were installed'; 'NYCDOT had to undergo an 18-month process to obtain licenses for all 450 units from the Federal Communication Commission (FCC).'",
       "exact": false
      },
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     },
     {
      "id": "src-51cc1fd60b8e285d",
      "title": "USDOT Volpe Center — Safety Impact Assessment of New York City Connected Vehicle Pilot Safety Applications (FHWA-JPO-22-937, May 2022)",
      "url": "https://rosap.ntl.bts.gov/view/dot/63319",
      "publisher": {
       "name": null,
       "domain": "rosap.ntl.bts.gov",
       "classification": "not-classified"
      },
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      "language": "und",
      "role": "claim-evidence",
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       "clm-b1bbfb23f9d83056"
      ],
      "temporal": {
       "publishedAt": "2022-05-01",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-06",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "The evaluation the impact figures come from, and the reason this entry is graded independent: authors Lam, Chupp, Najm, Brewer and Fallings are all Volpe — USDOT's federal research centre — not NYCDOT, the grantee. Assesses nine safety applications over the naturalistic driving of 3,000 equipped vehicles from January to December 2021, across roughly 160,289 alert events.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": "https://web.archive.org/web/20260218094300/https://rosap.ntl.bts.gov/view/dot/63319",
       "archivedAt": "2026-02-18",
       "contentHash": null,
       "status": "archive-linked"
      }
     },
     {
      "id": "src-20303aa3d9642bb4",
      "title": "USDOT ITS JPO — Connected Vehicle Pilot Deployment Program (2024 Update), executive briefing",
      "url": "https://www.itskrs.its.dot.gov/briefings/executive-briefing/connected-vehicle-pilot-deployment-program-2024-update",
      "publisher": {
       "name": null,
       "domain": "itskrs.its.dot.gov",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-06",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Carries the impact sentences verbatim and cites them to the Volpe-sourced benefit record 2022-B01691. Also the source for the 12 MTA buses, the roughly 25 personal devices for visually impaired pedestrians, and the three deployment zones in Manhattan and Brooklyn.",
       "exact": false
      },
      "preservation": {
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       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-14de2d12c2b9e3e0",
      "title": "USDOT ITS Knowledge Resources — benefit record 2022-B01691",
      "url": "https://www.itskrs.its.dot.gov/2022-b01691",
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       "domain": "itskrs.its.dot.gov",
       "classification": "not-classified"
      },
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      "language": "und",
      "role": "background",
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       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Resolves the attribution chain: the record the 41 and 46 percent figures hang on is sourced to the Volpe report FHWA-JPO-22-937, prepared for the Federal Highway Administration.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-0fba71b012e81907",
      "title": "Texas A&M Transportation Institute for USDOT — Connected Vehicle Pilot Deployment Program Independent Evaluation (17 June 2022)",
      "url": "https://rosap.ntl.bts.gov/view/dot/62969",
      "publisher": {
       "name": null,
       "domain": "rosap.ntl.bts.gov",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2022-06-17",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-06",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "The counterweight, and independent of both NYCDOT and Volpe. On the New York site: 'there is little evidence to support that the deployment had a significant impact on public agency efficiency', attributed to the safety focus and to COVID-19 having altered NYC travel patterns.",
       "exact": false
      },
      "preservation": {
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       "status": "not-captured"
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     },
     {
      "id": "src-a000d0a946d9d1ac",
      "title": "NYCDOT, Cambridge Systematics and NYU for USDOT — CV Pilot Phase 3 System Performance Report (FHWA-JPO-18-715, 29 December 2021)",
      "url": "https://rosap.ntl.bts.gov/view/dot/63102",
      "publisher": {
       "name": null,
       "domain": "rosap.ntl.bts.gov",
       "classification": "not-classified"
      },
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      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": "2021-12-29",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-06",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Grantee's own final performance report — the source for the experimental design quoted in the snippet: a before period from 1 January to 19 May 2021 with every vehicle silent, and an after period from 1 June to 31 December 2021 in which treatment vehicles issued alerts while control vehicles stayed silent.",
       "exact": false
      },
      "preservation": {
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       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-cb5aa2321b096c7a",
      "title": "USDOT — Recent FCC Public Notices on the 5.9 GHz Safety Band",
      "url": "https://www.transportation.gov/safety-band/recent-fcc-public-notices",
      "publisher": {
       "name": null,
       "domain": "transportation.gov",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-06",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "The load-bearing source for what became of the deployment. Logs NYC DOT's filing of 1 July 2022 seeking to 'deploy C-V2X roadside units to replace the existing but now dormant DSRC' units licensed under call sign WQBH353. The word dormant is the city's own, in a federal filing.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-fefac6d56526bcfb",
      "title": "FCC — Dedicated Short Range Communications (DSRC) Service",
      "url": "https://www.fcc.gov/wireless/bureau-divisions/mobility-division/dedicated-short-range-communications-dsrc-service",
      "publisher": {
       "name": null,
       "domain": "fcc.gov",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-06",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Regulator's own page on the band change that stranded the deployment: the November 2020 First Report and Order moved the lower 45 megahertz to unlicensed use and kept only the upper 30 megahertz for intelligent transportation systems.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-acc59d4fddcbdb06",
      "title": "NYC DOT — NYC Connected Vehicle Project",
      "url": "https://www.nyc.gov/html/dot/html/motorist/cvp-pilot.shtml",
      "publisher": {
       "name": null,
       "domain": "nyc.gov",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-06",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Currency check and the operator's closing statement: 'The NYC Connected Vehicle Project has concluded.' The project's dedicated site cvp.nyc now redirects here.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-d1119f04fd2e67e9",
      "title": "USDOT ITS Knowledge Resources — benefit record 2022-B01650 (pedestrian crossing app)",
      "url": "https://www.itskrs.its.dot.gov/2022-b01650",
      "publisher": {
       "name": null,
       "domain": "itskrs.its.dot.gov",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "background",
      "claimRefs": [],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-06",
       "dossierCreatedAt": "2026-08-20",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Why no pedestrian figure appears in the impact field. The 83 percent who felt safer come from the grantee's own report and a study of 24 volunteers with vision disabilities at four intersections — self-reported. The same record notes participants reporting inaccurate location information and slow responses.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     }
    ],
    "coverage": {
     "claimsTotal": 1,
     "claimsMapped": 1,
     "sourcesTotal": 10,
     "sourcesUsedByClaims": 1,
     "sourcesWithPublicationDate": 3,
     "sourcesWithArchive": 1,
     "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."
    ]
   }
  }
 ]
}