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Old revisions are immutable; corrections create a new revision and preserve the previous permalink.", "entity": { "type": "project", "id": "barcelona-nova-xarxa-bus", "title": "Nova Xarxa Orthogonal Bus Network", "canonicalUrl": "https://1001smartcities.org/projects/barcelona-nova-xarxa-bus/" }, "currentRevisionId": "2026-08-27-p1-quality-uplift", "revisions": [ { "id": "2026-08-20-source-dates", "createdAt": "2026-08-20T19:29:52Z", "effectiveAt": "2026-07-25", "changeType": "baseline", "summary": "Created the first structured Evidence Passport with 1 claim and 4 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:b6d7975779070455bd26c2ab2c93e4aed868569446159d79658157c6299b5dd2", "snapshot": { "asOf": "2026-07-25", "projectFingerprint": "sha256:2bd466d3471a836b4d4da4cc6b4d075937b7b8d386e565fe3bf88e387e65d4f2", "assurance": { "status": "unreviewed", "scope": "evidence-passport-revision", "statement": "AI-assisted structural preparation. 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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": "succeeded", "evidenceGrade": "independent", "timeline": { "started": 2012, "ended": null } }, "governance": { "operator": "TMB (Transports Metropolitans de Barcelona)", "actorTypes": [ "utility" ], "fundingModel": null, "fundingDescription": null, "cost": null, "ownership": null, "decisionRights": null, "exitConditions": null }, "claims": [ { "id": "clm-2f086752b1a2f90e", "field": "snippet", "text": "28 high-frequency lines (17 vertical, 8 horizontal, 3 diagonal) running every 5-8 minutes on straightened routes, with interchange hubs wherever they cross", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-791a566049ee4b4d", "src-91883de607b1b3c7" ], "supportNote": "TMB describes the interchange hubs as 'the points where vertical, horizontal and diagonal bus routes intersect, in both directions'; the working paper: 'The Nova Xarxa will be formed by 8 horizontal lines, 17 vertical and 3 diagonal.'", "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-a40a80b2c0c1efbe", "field": "snippet", "text": "It replaced most of a 63-line direct-service network inherited from the previous century's trams", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-91883de607b1b3c7", "src-791a566049ee4b4d" ], "supportNote": "The working paper: 'Barcelona's old urban bus network had 63 direct-service lines with many centripetal routes … The new bus network, the Nova Xarxa, will serve the whole city with 28 lines and replace most of the old bus network so that only 20 secondary routes of the old network will be retained.' TMB: 'Up until 2012 the Barcelona bus network was the heir to the tram network of the previous century.'", "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-a7e69f666ea0b403", "field": "snippet", "text": "the finished city network has 97 lines, of which 28 are the grid", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-791a566049ee4b4d" ], "supportNote": "TMB: 'The completion of the final phase finished in autumn 2018, when the Barcelona bus network comprise 97 lines: 43 urban and inter-city lines, 26 Bus de Barri or neighbourhood buses and 28 high performance lines.'", "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-aab2075e2f80cbda", "field": "snippet", "text": "Major stops carry real-time next-bus panels and solar-powered info poles, plus touch-screen planners at key interchanges and the iBus app", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-bbc43e0359316ed0" ], "supportNote": "TMB's guide to using the network describes the real-time arrival panels in shelters and on solar poles, the touch-screen planners and the iBus app.", "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-91ce8ef23be8af7c", "field": "impact", "text": "boardings on the first-phase lines rose 20.3% when phase 2 opened and another 9.5% at phase 3, about 31.7% in all, and the phase-2 lines that were not extended grew 24.2%", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-91883de607b1b3c7" ], "supportNote": "The working paper: 'the aggregate boardings on Phase 1 lines increased 20.3% from Phase 1 to Phase 2 and by another 9.5% from Phase 2 to Phase 3 … The fixed lines that remained grew by 24.2% from Phase 2 to Phase 3', and 'the number of boardings for the lines of Phase 1 grew by about 31.7% as Phases 2 and 3 were completed.'", "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-a0c7ff3f3309bd13", "field": "impact", "text": "the city's overall transit ridership fell 2.1% and private vehicle trips 3.2% over the same years", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-91883de607b1b3c7" ], "supportNote": "The working paper: 'Barcelona's overall transit ridership (including Metro, light rail and all bus services) and private vehicle demand levels remained approximately unchanged … The line decreases by 2.1% in a very narrow band … the dashed line, which decreases by 3.2% between 2011 and 2014.'", "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-a713a36b8b6a9fe7", "field": "impact", "text": "26% of Nova Xarxa trips involved one at the end of 2015, and 57% on line V7, against about 11% on the old network and 1.5% in Boston, 3% in New York, 13% in London and 16% in Melbourne", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-91883de607b1b3c7" ], "supportNote": "The working paper: 'at the end of 2015, the percentage of trips that involved a transfer was approximately 26%, and it reached a maximum of 57% for line V7'; 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28 high-performance lines (17 vertical, 8 horizontal, 3 diagonal); interchange hubs where the axes cross; the finished network comprising 97 lines, of which 43 are urban and inter-city, 26 neighbourhood buses and 28 the grid. 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