{
 "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": "chengdu-tocc-transport-data-hub",
  "title": "TOCC — Chengdu's citywide transport data coordination centre",
  "canonicalUrl": "https://1001smartcities.org/projects/chengdu-tocc-transport-data-hub/"
 },
 "currentRevisionId": "2026-08-21-unsourced-text-correction",
 "revisions": [
  {
   "id": "2026-08-21-evidence-baseline",
   "createdAt": "2026-08-21T23:30:00Z",
   "effectiveAt": "2026-08-02",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 13 claims and 3 source dossiers.",
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    "label": "AI-assisted evidence preparation",
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   },
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    "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:e250dd6a166e739e64286abe42d7db824e6a5f42388b6795fb63472f7e7dea41",
   "snapshot": {
    "asOf": "2026-08-02",
    "projectFingerprint": "sha256:457af0c7b0fcb7b2bca36308d11f5f33774ee9ea10a1d8f99c0f4439a7de3438",
    "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": "media",
     "timeline": {
      "started": 2019,
      "ended": null
     }
    },
    "governance": {
     "operator": "Chengdu Transportation Operation Coordination Center (TOCC), Chengdu Municipal Transport Committee",
     "actorTypes": [
      "city-government"
     ],
     "fundingModel": "public",
     "fundingDescription": null,
     "cost": null,
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-8ead4a84dd200dbb",
      "field": "snippet",
      "text": "running since 2019",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-08f0fa0fea206176"
      ],
      "supportNote": "The Paper reports the centre's own account of its founding: 「TOCC于2019年正式挂牌成立」 — TOCC was formally inaugurated in 2019. The 2021 article describes it as in continuous operation since then.",
      "caveat": "The founding date comes from the operator itself, relayed in an interview with TOCC director Luo Jian; no independent registry entry is cited.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-c68495f1bfa740ad",
      "field": "snippet",
      "text": "ingests over 300 million transport data records a day",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-08f0fa0fea206176",
       "src-f8b8f2e364cb5874"
      ],
      "supportNote": "The Paper (July 2021) quotes TOCC director Luo Jian: 「TOCC每天的平均数据采集量，已超3亿条」 — average daily data collection already exceeds 300 million records. The trade press (February 2022) gives a different figure for daily new records: 「日均新增数据6亿条」, 600 million.",
      "caveat": "The two sources disagree: 300 million records collected per day (The Paper, 2021) against 600 million new records per day (7its, 2022). The entry uses the lower, earlier figure. Neither source explains whether the two count the same thing.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-2249de4549b0d384",
      "field": "snippet",
      "text": "315.1 billion records across 15 categories",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-f8b8f2e364cb5874"
      ],
      "supportNote": "The trade-press report states: 「成都TOCC已汇集来自航空、公路、铁路、公安交管等省、市相关部门及交通运输企业15大类，3151亿条交通数据」 — 15 major categories, 315.1 billion transport data records, gathered from provincial and municipal bodies and transport operators.",
      "caveat": "Cumulative since launch, not an annual throughput. The category count is not stable across sources: the Alibaba Cloud write-up describes 13 and elsewhere 14 major categories, not 15.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-02ff4f37f4d91c20",
      "field": "snippet",
      "text": "from aviation, roads, rail, buses, taxis and ride-hailing",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-f8b8f2e364cb5874",
       "src-1cae7c9f870fe978"
      ],
      "supportNote": "The trade press names 「航空、公路、铁路、公安交管等」 (aviation, highways, rail, police traffic management and others) as the feeding bodies; the Alibaba Cloud technical write-up lists the full mode set, including 「地面公交、出租汽车、网约车」 — surface buses, taxis and ride-hailing.",
      "caveat": "No single source lists exactly these six modes; the entry's list is assembled from two overlapping enumerations that themselves differ in length.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-807874d9804ca34d",
      "field": "snippet",
      "text": "100,000+ sensing terminals",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-08f0fa0fea206176"
      ],
      "supportNote": "The Paper: 「分布在全市的如流量摄像头等在内的超10万路感知终端，正在采集整个城市的交通信息」 — more than 100,000 sensing terminals across the city, including flow cameras, are collecting the city's transport information.",
      "caveat": "Operator figure from a 2021 interview; the source does not break the count down by device type or say who owns the terminals.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-125edf5f5c42009f",
      "field": "snippet",
      "text": "99,000 video feeds",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-08f0fa0fea206176"
      ],
      "supportNote": "The Paper: 「目前，成都市已有9.9万条视频线路接入中心」 — 99,000 video lines are connected into the centre.",
      "caveat": "Operator figure, as of the July 2021 article; the source does not say how many of the feeds are live-monitored rather than merely connected.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-9f40e8d33febf95b",
      "field": "snippet",
      "text": "It has been used to catch overcrowding on Metro Line 1 and reroute trains",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-f8b8f2e364cb5874"
      ],
      "supportNote": "The trade press reports the detection — 「地铁1号线骡马市站至倪家桥站区间早高峰小时最大断面客流累计已达10万人次以上，最大满载率超过130%」 — and the operational response: 「成都地铁在工作日早高峰采取开行大站空车到倪家桥站的组织方式」, running empty skip-stop trains to Nijiaqiao station at weekday morning peak.",
      "caveat": "‘Reroute trains’ is the entry's paraphrase: the source describes running additional empty skip-stop trains to one station, not diverting an existing service. The source also does not quantify the relief, saying only that peak pressure was ‘effectively eased’.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-6737e1ffb6d405e6",
      "field": "snippet",
      "text": "a companion driver app is credited with taxi drivers earning roughly 50 yuan more per day by steering them to demand hotspots",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-08f0fa0fea206176",
       "src-f8b8f2e364cb5874"
      ],
      "supportNote": "The app is TOCC's own 「司机小秘书」, which pushes the number of idle taxis, passenger waiting times and average order revenue for under-served areas and hubs to drivers. The Paper: 「使用者日均收入比未使用者高近50元」 (users earn nearly 50 yuan a day more than non-users, among roughly 5,000 drivers, about half the city's fleet). The trade press: 「使用APP驾驶员的日均收入比全市平均高50元左右」.",
      "caveat": "The two sources use different baselines — The Paper compares app users with non-users, the trade press with the citywide average. Neither is a controlled comparison, so self-selection by more active drivers is not excluded.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-ed01f1ff82a5947f",
      "field": "snippet",
      "text": "taxi queue complaints at Shuangliu International Airport reportedly fell about 90% after the center started managing dispatch there",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-08f0fa0fea206176"
      ],
      "supportNote": "The Paper: 「这让双流机场出租车投诉率下降了90%」 — the taxi complaint rate at Shuangliu airport fell by 90%, presented as the result of TOCC's dispatch coordination at the airport.",
      "caveat": "The source gives a complaint rate, not a count, and names neither a baseline period nor absolute numbers. It is the operator's own figure, relayed by TOCC director Luo Jian in a July 2021 interview; no independent audit is cited.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-2d6c3bc8a7b9f2e1",
      "field": "impact",
      "text": "300M+ new data records processed daily (315.1 billion records across 15 categories cumulative) from 100,000+ sensing terminals and 99,000 video feeds",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-08f0fa0fea206176",
       "src-f8b8f2e364cb5874"
      ],
      "supportNote": "Terminal and video counts are The Paper's: 「超10万路感知终端」 and 「9.9万条视频线路接入中心」; the daily volume is 「已超3亿条」; the cumulative total is the trade press's 「15大类，3151亿条交通数据」.",
      "caveat": "The two sources disagree on the daily figure (300 million collected, The Paper 2021, against 600 million new, 7its 2022), and on the category count (15 against the Alibaba Cloud write-up's 13/14). The cumulative total is since launch, not annual.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
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     },
     {
      "id": "clm-ab5ea7ef5cfd4fd2",
      "field": "impact",
      "text": "taxi complaints at Shuangliu Airport down roughly 90%",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-08f0fa0fea206176"
      ],
      "supportNote": "The Paper: 「这让双流机场出租车投诉率下降了90%」 — a 90% fall in the airport taxi complaint rate, credited to TOCC's dispatch coordination.",
      "caveat": "A rate, not a count; no baseline period, no absolute numbers, no independent verification.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
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     },
     {
      "id": "clm-9bc7ad146ff15900",
      "field": "impact",
      "text": "drivers using the companion app reportedly earn about ¥50/day more (all figures self-reported by the operator)",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
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       "src-f8b8f2e364cb5874"
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      "supportNote": "The trade press: 「使用APP驾驶员的日均收入比全市平均高50元左右」; The Paper gives the same order of magnitude against non-users. The self-reporting note is borne out by The Paper's framing: the figures are given by TOCC director Luo Jian in an interview, and the trade-press piece likewise relays the centre's own account.",
      "caveat": "Different baselines in the two sources (citywide average against non-users), no control group in either, and the earnings claim rests on the operator's own reporting of its own app.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-e0fa65d99fbdefff",
      "field": "lesson",
      "text": "one airport's taxi queue, one overcrowded metro station",
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      "mappingStatus": "mapped",
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      "supportNote": "These are exactly the two cases the sources document: the Shuangliu airport taxi complaint drop (The Paper) and the Line 1 Luomashi–Nijiaqiao morning peak, 「最大满载率超过130%」, answered by extra empty skip-stop trains (7its).",
      "caveat": "The wider generalisation about citywide platforms is the atlas's editorial reading; the sources support only the two named cases, and both are the operator's own account.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
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    ],
    "sources": [
     {
      "id": "src-08f0fa0fea206176",
      "title": "The Paper — Chengdu TOCC processes over 300 million transport data records daily",
      "url": "https://www.thepaper.cn/newsDetail_forward_13528848",
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      "role": "claim-evidence",
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       "clm-125edf5f5c42009f",
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      },
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       "type": "descriptive-source-note",
       "value": "Founding year (2019), daily data volume, sensing terminal/video feed counts, taxi-complaint and driver-earnings figures, all attributed to the TOCC director.",
       "exact": false
      },
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       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-f8b8f2e364cb5874",
      "title": "7its.com — Chengdu TOCC's 315.1 billion records visible on one screen",
      "url": "https://www.7its.com/index.php?m=home&c=View&a=index&aid=11293",
      "publisher": {
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       "classification": "not-classified"
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      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
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       "recordLastVerifiedAt": "2026-08-02",
       "dossierCreatedAt": "2026-08-21",
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       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Independent trade-press confirmation of the 315.1bn cumulative records / ~600M daily new entries, data source categories, and the Metro Line 1 overcrowding/driver-app examples.",
       "exact": false
      },
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       "status": "not-captured"
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     },
     {
      "id": "src-1cae7c9f870fe978",
      "title": "Alibaba Cloud developer community — Chengdu TOCC smart-city build",
      "url": "https://developer.aliyun.com/article/780656",
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       "domain": "developer.aliyun.com",
       "classification": "not-classified"
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      "role": "claim-evidence",
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      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Independent technical write-up describing TOCC's data-intake scope, the big-data/application-platform architecture, and its role coordinating city-wide transport data.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
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     }
    ],
    "coverage": {
     "claimsTotal": 13,
     "claimsMapped": 13,
     "sourcesTotal": 3,
     "sourcesUsedByClaims": 3,
     "sourcesWithPublicationDate": 0,
     "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": "2026-08-21T23:47:00Z",
   "effectiveAt": "2026-08-02",
   "changeType": "correction",
   "summary": "Removed or softened wording that no listed source carries, after reading every source while preparing the claim ledger. The source describes extra empty trains in short-turn operation, not rerouting.",
   "preparedBy": {
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   },
   "review": {
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    "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": "sha256:0653d06a33cf2daadb505b553aa3a892558243eb523ee9ff25904867c8ec69b9",
   "snapshot": {
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    "projectFingerprint": "sha256:12a80577025ba64b95347886cee2e95e7df0e322eaabebc89df8ab3f8fb2fd98",
    "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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      "publication-diff-contract",
      "material-project-fingerprint",
      "claim-text-drift",
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    },
    "projectState": {
     "status": "live",
     "outcome": "ongoing",
     "evidenceGrade": "media",
     "timeline": {
      "started": 2019,
      "ended": null
     }
    },
    "governance": {
     "operator": "Chengdu Transportation Operation Coordination Center (TOCC), Chengdu Municipal Transport Committee",
     "actorTypes": [
      "city-government"
     ],
     "fundingModel": "public",
     "fundingDescription": null,
     "cost": null,
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-8ead4a84dd200dbb",
      "field": "snippet",
      "text": "running since 2019",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
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      ],
      "supportNote": "The Paper reports the centre's own account of its founding: 「TOCC于2019年正式挂牌成立」 — TOCC was formally inaugurated in 2019. The 2021 article describes it as in continuous operation since then.",
      "caveat": "The founding date comes from the operator itself, relayed in an interview with TOCC director Luo Jian; no independent registry entry is cited.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
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      "id": "clm-c68495f1bfa740ad",
      "field": "snippet",
      "text": "ingests over 300 million transport data records a day",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-08f0fa0fea206176",
       "src-f8b8f2e364cb5874"
      ],
      "supportNote": "The Paper (July 2021) quotes TOCC director Luo Jian: 「TOCC每天的平均数据采集量，已超3亿条」 — average daily data collection already exceeds 300 million records. The trade press (February 2022) gives a different figure for daily new records: 「日均新增数据6亿条」, 600 million.",
      "caveat": "The two sources disagree: 300 million records collected per day (The Paper, 2021) against 600 million new records per day (7its, 2022). The entry uses the lower, earlier figure. Neither source explains whether the two count the same thing.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-2249de4549b0d384",
      "field": "snippet",
      "text": "315.1 billion records across 15 categories",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-f8b8f2e364cb5874"
      ],
      "supportNote": "The trade-press report states: 「成都TOCC已汇集来自航空、公路、铁路、公安交管等省、市相关部门及交通运输企业15大类，3151亿条交通数据」 — 15 major categories, 315.1 billion transport data records, gathered from provincial and municipal bodies and transport operators.",
      "caveat": "Cumulative since launch, not an annual throughput. The category count is not stable across sources: the Alibaba Cloud write-up describes 13 and elsewhere 14 major categories, not 15.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-02ff4f37f4d91c20",
      "field": "snippet",
      "text": "from aviation, roads, rail, buses, taxis and ride-hailing",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-f8b8f2e364cb5874",
       "src-1cae7c9f870fe978"
      ],
      "supportNote": "The trade press names 「航空、公路、铁路、公安交管等」 (aviation, highways, rail, police traffic management and others) as the feeding bodies; the Alibaba Cloud technical write-up lists the full mode set, including 「地面公交、出租汽车、网约车」 — surface buses, taxis and ride-hailing.",
      "caveat": "No single source lists exactly these six modes; the entry's list is assembled from two overlapping enumerations that themselves differ in length.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-807874d9804ca34d",
      "field": "snippet",
      "text": "100,000+ sensing terminals",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-08f0fa0fea206176"
      ],
      "supportNote": "The Paper: 「分布在全市的如流量摄像头等在内的超10万路感知终端，正在采集整个城市的交通信息」 — more than 100,000 sensing terminals across the city, including flow cameras, are collecting the city's transport information.",
      "caveat": "Operator figure from a 2021 interview; the source does not break the count down by device type or say who owns the terminals.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-125edf5f5c42009f",
      "field": "snippet",
      "text": "99,000 video feeds",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-08f0fa0fea206176"
      ],
      "supportNote": "The Paper: 「目前，成都市已有9.9万条视频线路接入中心」 — 99,000 video lines are connected into the centre.",
      "caveat": "Operator figure, as of the July 2021 article; the source does not say how many of the feeds are live-monitored rather than merely connected.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-6aea7ad3f340a5da",
      "field": "snippet",
      "text": "It has been used to catch overcrowding on Metro Line 1 and add empty trains",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-f8b8f2e364cb5874"
      ],
      "supportNote": "The trade press reports the detection — 「地铁1号线骡马市站至倪家桥站区间早高峰小时最大断面客流累计已达10万人次以上，最大满载率超过130%」 — and the operational response: 「成都地铁在工作日早高峰采取开行大站空车到倪家桥站的组织方式」, running empty skip-stop trains to Nijiaqiao station at weekday morning peak.",
      "caveat": "The source describes extra empty trains inserted in short-turn operation past Nijiaqiao, not rerouting.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-6737e1ffb6d405e6",
      "field": "snippet",
      "text": "a companion driver app is credited with taxi drivers earning roughly 50 yuan more per day by steering them to demand hotspots",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-08f0fa0fea206176",
       "src-f8b8f2e364cb5874"
      ],
      "supportNote": "The app is TOCC's own 「司机小秘书」, which pushes the number of idle taxis, passenger waiting times and average order revenue for under-served areas and hubs to drivers. The Paper: 「使用者日均收入比未使用者高近50元」 (users earn nearly 50 yuan a day more than non-users, among roughly 5,000 drivers, about half the city's fleet). The trade press: 「使用APP驾驶员的日均收入比全市平均高50元左右」.",
      "caveat": "The two sources use different baselines — The Paper compares app users with non-users, the trade press with the citywide average. Neither is a controlled comparison, so self-selection by more active drivers is not excluded.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-ed01f1ff82a5947f",
      "field": "snippet",
      "text": "taxi queue complaints at Shuangliu International Airport reportedly fell about 90% after the center started managing dispatch there",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-08f0fa0fea206176"
      ],
      "supportNote": "The Paper: 「这让双流机场出租车投诉率下降了90%」 — the taxi complaint rate at Shuangliu airport fell by 90%, presented as the result of TOCC's dispatch coordination at the airport.",
      "caveat": "The source gives a complaint rate, not a count, and names neither a baseline period nor absolute numbers. It is the operator's own figure, relayed by TOCC director Luo Jian in a July 2021 interview; no independent audit is cited.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-2d6c3bc8a7b9f2e1",
      "field": "impact",
      "text": "300M+ new data records processed daily (315.1 billion records across 15 categories cumulative) from 100,000+ sensing terminals and 99,000 video feeds",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-08f0fa0fea206176",
       "src-f8b8f2e364cb5874"
      ],
      "supportNote": "Terminal and video counts are The Paper's: 「超10万路感知终端」 and 「9.9万条视频线路接入中心」; the daily volume is 「已超3亿条」; the cumulative total is the trade press's 「15大类，3151亿条交通数据」.",
      "caveat": "The two sources disagree on the daily figure (300 million collected, The Paper 2021, against 600 million new, 7its 2022), and on the category count (15 against the Alibaba Cloud write-up's 13/14). The cumulative total is since launch, not annual.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-ab5ea7ef5cfd4fd2",
      "field": "impact",
      "text": "taxi complaints at Shuangliu Airport down roughly 90%",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-08f0fa0fea206176"
      ],
      "supportNote": "The Paper: 「这让双流机场出租车投诉率下降了90%」 — a 90% fall in the airport taxi complaint rate, credited to TOCC's dispatch coordination.",
      "caveat": "A rate, not a count; no baseline period, no absolute numbers, no independent verification.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-9bc7ad146ff15900",
      "field": "impact",
      "text": "drivers using the companion app reportedly earn about ¥50/day more (all figures self-reported by the operator)",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-08f0fa0fea206176",
       "src-f8b8f2e364cb5874"
      ],
      "supportNote": "The trade press: 「使用APP驾驶员的日均收入比全市平均高50元左右」; The Paper gives the same order of magnitude against non-users. The self-reporting note is borne out by The Paper's framing: the figures are given by TOCC director Luo Jian in an interview, and the trade-press piece likewise relays the centre's own account.",
      "caveat": "Different baselines in the two sources (citywide average against non-users), no control group in either, and the earnings claim rests on the operator's own reporting of its own app.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
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      "field": "lesson",
      "text": "one airport's taxi queue, one overcrowded metro station",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-08f0fa0fea206176",
       "src-f8b8f2e364cb5874"
      ],
      "supportNote": "These are exactly the two cases the sources document: the Shuangliu airport taxi complaint drop (The Paper) and the Line 1 Luomashi–Nijiaqiao morning peak, 「最大满载率超过130%」, answered by extra empty skip-stop trains (7its).",
      "caveat": "The wider generalisation about citywide platforms is the atlas's editorial reading; the sources support only the two named cases, and both are the operator's own account.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     }
    ],
    "sources": [
     {
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      "title": "The Paper — Chengdu TOCC processes over 300 million transport data records daily",
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       "type": "descriptive-source-note",
       "value": "Founding year (2019), daily data volume, sensing terminal/video feed counts, taxi-complaint and driver-earnings figures, all attributed to the TOCC director.",
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      },
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     },
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      "title": "7its.com — Chengdu TOCC's 315.1 billion records visible on one screen",
      "url": "https://www.7its.com/index.php?m=home&c=View&a=index&aid=11293",
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      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
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      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Independent trade-press confirmation of the 315.1bn cumulative records / ~600M daily new entries, data source categories, and the Metro Line 1 overcrowding/driver-app examples.",
       "exact": false
      },
      "preservation": {
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     },
     {
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      "title": "Alibaba Cloud developer community — Chengdu TOCC smart-city build",
      "url": "https://developer.aliyun.com/article/780656",
      "publisher": {
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       "domain": "developer.aliyun.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
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      "temporal": {
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       "recordLastVerifiedAt": "2026-08-02",
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       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Independent technical write-up describing TOCC's data-intake scope, the big-data/application-platform architecture, and its role coordinating city-wide transport data.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     }
    ],
    "coverage": {
     "claimsTotal": 13,
     "claimsMapped": 13,
     "sourcesTotal": 3,
     "sourcesUsedByClaims": 3,
     "sourcesWithPublicationDate": 0,
     "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."
    ]
   }
  }
 ]
}