1001 Smart Cities
🇪🇸 Barcelona

Nova Xarxa Orthogonal Bus Network

🤖 AI-generated summary of the sources below · 🔎 Last verified · ◆ 11 sourced claims, none individually verified yet

This overview was generated with AI from the public sources listed below and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.

How this atlas is made · What “last verified” means · What “source-checked” means · The full record behind this page

✎ Updated 26 Aug 2026 Evidence grade changed: peer-reviewed → independent. What changed →

From 2012 to 2018 TMB laid an orthogonal grid over Barcelona's bus map: the Nova Xarxa, 28 high-frequency lines (17 vertical, 8 horizontal, 3 diagonal) running every 5-8 minutes on straightened routes, with interchange hubs wherever they cross. It replaced most of a 63-line direct-service network inherited from the previous century's trams; the finished city network has 97 lines, of which 28 are the grid. Major stops carry real-time next-bus panels and solar-powered info poles, plus touch-screen planners at key interchanges and the iBus app.

Live 📅 since 2012
Outcome🎯 Succeeded
Evidence📊 Independent
what does this mean?The strongest source is an independent non-academic evaluation: an audit office, a government or EU review, or an NGO. It grades who did the looking — not how well the project went. All four grades →
Run byTMB (Transports Metropolitans de Barcelona)
Scale🏙️ City-wide

📊 Impact

A UC Berkeley working paper using TMB's own fare-validation records found the grid growing faster than anything around it: 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% — while the city's overall transit ridership fell 2.1% and private vehicle trips 3.2% over the same years. The growth is carried by transfers, which the authors treat as the mechanism rather than the cost: 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. The final-phase figures of 44% and 66% are the authors' model, not a count.

🎓 Lesson

Transfers are normally counted as what a network redesign costs its riders. Barcelona built a grid that could only work if people accepted them, and then measured how many did: from about 11% of trips on the old radial map to 26% on the new one, while boardings on the same lines rose by roughly a third and the rest of the city's transit was flat or falling. The instrument that proved it was the fare-validation record the operator already held — no survey, no new sensor. What it cannot show is the rest of the map: the grid is 28 of 97 lines, and the completed-network figures are a projection.

🚲 MobilityPublic transportSensors & IoT

Sources

↗ TMB — New bus network: evolution (official)Phase-by-phase deployment from 1 October 2012 to autumn 2018; 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. The page carries no publication date; the 2016 date it shows is the day three lines began running.
↗ TMB — How to use the new bus network (official)Real-time arrival panels in shelters and on solar poles, touch-screen planners and the iBus real-time app.
↗ Badia, Argote-Cabañero & Daganzo — 'Network Effects in Bus Transit: Evidence from Barcelona's Nova Xarxa', UC Berkeley ITS Working Paper UCB-ITS-WP-2016-01Published 2016UC Berkeley Institute of Transportation Studies working paper, using TMB validation data: boardings on phase-1 lines up 20.3% then 9.5% (about 31.7% in all), phase-2 fixed lines up 24.2%, against a 2.1% fall in overall transit trips and 3.2% in private vehicle trips; 26% of trips involving a transfer at the end of 2015 (57% on V7) against about 11% on the old network; the 44% and 66% completed-network figures are model predictions. The authors published a journal version of the argument in 2017.
↗ Human Transit — 'Barcelona's Bus Network: Better Access, If You Change Buses' (2017)Published 17 April 2017Independent expert commentary on the same redesign, describing a high-frequency transfer-based grid and what it asks of riders.
Show your work What this page rests on and what it can’t tell you · all 11 claims with their sources · the forensic record

Evidence Passport · public beta 11 addressable claims, 4 source dossiers, one permanent baseline. The passport is unreviewed — an AI-assisted structural migration, not a human or expert endorsement. Every revision keeps a permanent copy under revision history.

Inspect the claims, one by one — verbatim text, sources and caveats for all 11

The text below is copied verbatim from the published record. Each claim names the source dossiers that carry it; caveats stay attached to the claim they qualify.

Claim 1 clm-2f086752b1a2f90e quantitative
28 high-frequency lines (17 vertical, 8 horizontal, 3 diagonal) running every 5-8 minutes on straightened routes, with interchange hubs wherever they cross
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
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
No claim-specific caveat recorded

Sources carrying this claim

  1. TMB — New bus network: evolution (official)
  2. Badia, Argote-Cabañero & Daganzo — 'Network Effects in Bus Transit: Evidence from Barcelona's Nova Xarxa', UC Berkeley ITS Working Paper UCB-ITS-WP-2016-01
Claim 2 clm-a40a80b2c0c1efbe quantitative
It replaced most of a 63-line direct-service network inherited from the previous century's trams
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
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
No claim-specific caveat recorded

Sources carrying this claim

  1. Badia, Argote-Cabañero & Daganzo — 'Network Effects in Bus Transit: Evidence from Barcelona's Nova Xarxa', UC Berkeley ITS Working Paper UCB-ITS-WP-2016-01
  2. TMB — New bus network: evolution (official)
Claim 3 clm-a7e69f666ea0b403 quantitative
the finished city network has 97 lines, of which 28 are the grid
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
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
No claim-specific caveat recorded

Sources carrying this claim

  1. TMB — New bus network: evolution (official)
Claim 4 clm-aab2075e2f80cbda descriptive
Major stops carry real-time next-bus panels and solar-powered info poles, plus touch-screen planners at key interchanges and the iBus app
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
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
No claim-specific caveat recorded

Sources carrying this claim

  1. TMB — How to use the new bus network (official)
Claim 5 clm-91ce8ef23be8af7c quantitative
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%
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
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
No claim-specific caveat recorded

Sources carrying this claim

  1. Badia, Argote-Cabañero & Daganzo — 'Network Effects in Bus Transit: Evidence from Barcelona's Nova Xarxa', UC Berkeley ITS Working Paper UCB-ITS-WP-2016-01
Claim 6 clm-a0c7ff3f3309bd13 quantitative
the city's overall transit ridership fell 2.1% and private vehicle trips 3.2% over the same years
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
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
No claim-specific caveat recorded

Sources carrying this claim

  1. Badia, Argote-Cabañero & Daganzo — 'Network Effects in Bus Transit: Evidence from Barcelona's Nova Xarxa', UC Berkeley ITS Working Paper UCB-ITS-WP-2016-01
Claim 7 clm-a713a36b8b6a9fe7 quantitative
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
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
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'; and 'The Nova Xarxa's current 26.3% value already exceeds by a wide margin the transfer percentages of the old bus network, which was about 11% … Melbourne 16%, or Boston 1.5%, London 13% and New York 3%.'
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Badia, Argote-Cabañero & Daganzo — 'Network Effects in Bus Transit: Evidence from Barcelona's Nova Xarxa', UC Berkeley ITS Working Paper UCB-ITS-WP-2016-01
Claim 8 clm-09ad639bc22615f8 quantitative
The final-phase figures of 44% and 66% are the authors' model, not a count
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The working paper: 'the model predicts that transfers will represent more than 44% of all trips in the final phase and almost 66% for line V7.'
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Badia, Argote-Cabañero & Daganzo — 'Network Effects in Bus Transit: Evidence from Barcelona's Nova Xarxa', UC Berkeley ITS Working Paper UCB-ITS-WP-2016-01
Claim 9 clm-b712b9b3e3963cbe quantitative
from about 11% of trips on the old radial map to 26% on the new one
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The working paper contrasts the Nova Xarxa's 26.3% transfer share with about 11% on the old bus network.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Badia, Argote-Cabañero & Daganzo — 'Network Effects in Bus Transit: Evidence from Barcelona's Nova Xarxa', UC Berkeley ITS Working Paper UCB-ITS-WP-2016-01
Claim 10 clm-9714ae52f6a7e94b descriptive
The instrument that proved it was the fare-validation record the operator already held
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The paper's analysis is built on monthly validation counts per line, from which it teases out demand and transfers using a two-parameter regression.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Badia, Argote-Cabañero & Daganzo — 'Network Effects in Bus Transit: Evidence from Barcelona's Nova Xarxa', UC Berkeley ITS Working Paper UCB-ITS-WP-2016-01
Claim 11 clm-adc2fe8bd761d66f quantitative
the grid is 28 of 97 lines, and the completed-network figures are a projection
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
TMB gives the finished network as 97 lines with 28 high-performance ones; the working paper labels the 44% and 66% completed-network transfer shares as model predictions.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. TMB — New bus network: evolution (official)
  2. Badia, Argote-Cabañero & Daganzo — 'Network Effects in Bus Transit: Evidence from Barcelona's Nova Xarxa', UC Berkeley ITS Working Paper UCB-ITS-WP-2016-01
Forensic record — source dossiers, gaps, hashes and the exact revision this page renders

This layer records what is known about each source, what is still missing, and the exact snapshot this page is rendering. A missing date, archive or hash stays visible as missing.

unreviewed Revision 2026-08-27-p1-quality-uplift effective 2026-07-25 · created 2026-08-26

Awaiting operator and domain-expert review; publication of this revision implies neither.

Erratum on this revision's envelope. The snapshot, its hash and its permanent link are untouched.

  • createdAt previously read 2026-08-27T22:00:00Z. The batching script that produced this revision advanced createdAt into the future to satisfy the strictly-increasing order the validator requires per entity. The value never recorded a real event; the corrected value is the moment the revision provably existed in the repository. Corrected to 2026-08-26T23:52:42Z on 2026-08-27; evidence: first appears in commit a8492f64da, committed 2026-08-26T23:52:42Z.
sha256:255e9ee58f8f2c45fb8e675fc5d9dc809e48cd7edd01f6ff55c34756f974685d
Revision history → Permanent version link → Machine-readable record → Evidence Constitution →
11
of 11 claims mapped
4
source dossiers
1
publication dates recorded
0
archives linked
0
exact locators
0
content captures hashed

Governance facts carried by the record

Operator
TMB (Transports Metropolitans de Barcelona)
Actor types
utility
Funding model
Not recorded
Funding description
Not recorded
Cost
Not recorded
Ownership
Not recorded
Decision rights
Not recorded
Exit conditions
Not recorded

4 source dossiers

TMB — New bus network: evolution (official) tmb.cat · 4 linked claims

Open original source ↗

Stable source ID
src-791a566049ee4b4d
Publisher
Name not classified · tmb.cat
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-07-25
Dossier created
2026-08-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Phase-by-phase deployment from 1 October 2012 to autumn 2018; 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. The page carries no publication date; the 2016 date it shows is the day three lines began running.

Descriptive only — not page/paragraph exact
Claims linked
TMB — How to use the new bus network (official) tmb.cat · 1 linked claim

Open original source ↗

Stable source ID
src-bbc43e0359316ed0
Publisher
Name not classified · tmb.cat
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-07-25
Dossier created
2026-08-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Real-time arrival panels in shelters and on solar poles, touch-screen planners and the iBus real-time app.

Descriptive only — not page/paragraph exact
Claims linked
Badia, Argote-Cabañero & Daganzo — 'Network Effects in Bus Transit: Evidence from Barcelona's Nova Xarxa', UC Berkeley ITS Working Paper UCB-ITS-WP-2016-01 escholarship.org · 9 linked claims

Open original source ↗

Stable source ID
src-91883de607b1b3c7
Publisher
Name not classified · escholarship.org
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-07-25
Dossier created
2026-08-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

UC Berkeley Institute of Transportation Studies working paper, using TMB validation data: boardings on phase-1 lines up 20.3% then 9.5% (about 31.7% in all), phase-2 fixed lines up 24.2%, against a 2.1% fall in overall transit trips and 3.2% in private vehicle trips; 26% of trips involving a transfer at the end of 2015 (57% on V7) against about 11% on the old network; the 44% and 66% completed-network figures are model predictions. The authors published a journal version of the argument in 2017.

Descriptive only — not page/paragraph exact
Claims linked
Human Transit — 'Barcelona's Bus Network: Better Access, If You Change Buses' (2017) humantransit.org · background

Open original source ↗

Stable source ID
src-4360ed5e8b987e1e
Publisher
Name not classified · humantransit.org
Type / language
web-page · language not classified
Published
2017-04-17
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-07-25
Dossier created
2026-08-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Independent expert commentary on the same redesign, describing a high-frequency transfer-based grid and what it asks of riders.

Descriptive only — not page/paragraph exact
Claims linked
Background source; no baseline claim points here
Known limits of this passport
  • 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.

Continue exploring

Compare this project

🇰🇷 Owl Bus (Night Bus) — Big-Data Route Design · Seoul Data-shaped bus service: Seoul mined call records for night routes (2013); Barcelona re-gridded its whole network on demand (2012-18). 🇸🇬 Beeline Crowd-Sourced Bus Platform · Singapore Both reshaped buses around demand: Singapore crowd-sourced Beeline express routes (2015-19); Barcelona re-gridded its network (2012-18). 🇺🇸 METRO's 2015 System Reimagining Bus Network Redesign · Houston Both rebuilt a bus network into a high-frequency grid using ridership data instead of route tinkering — Barcelona first, Houston in 2015.

Explore the wider context

🚦 Asphalt or algorithms🚌 Public transport guide🏙️ Barcelona city profile🚲 Mobility projects📖 Adaptive traffic signals📖 Air quality index (AQI)📖 Automated speed enforcement (speed cameras)
📎 Cite this project

1001 Smart Cities (2026). “Nova Xarxa Orthogonal Bus Network” — Barcelona, Spain. The Smart City Atlas. https://1001smartcities.org/projects/barcelona-nova-xarxa-bus/ (last verified 2026-07-25). Data: CC BY 4.0.

The underlying data is free to reuse with attribution — see the open data page.

🚩 Report an error · 🔔 Follow changes to this entry (RSS)

✉️ Get the next source-checked smart-city project in your inbox

One short email a week: the Landmark, one Insight, the new cities. No spam, one-click unsubscribe. About the newsletter · RSS