1001 Smart Cities

Permanent project revision

Bengaluru Adaptive Traffic Control System

Revision 2026-08-26-p1-quality-uplift · effective 2026-08-26

Superseded. A later revision exists: 2026-08-27-correction-run →

unreviewed

Created the first structured Evidence Passport with 8 claims and 6 source dossiers.

sha256:a1a5a1edd09ac64628ffbe5edb1b82df35c5ff575154ca10725328a94a816dd7
All revisions → Current entity page →

Change set

  • add /evidencePassport — Added claim-level evidence mapping and source dossiers.
  • add /revisionHistory — Established a permanent, hash-addressed baseline revision.
8
of 8 claims mapped
6
source dossiers
6
publication dates recorded
0
archives linked
0
exact locators
0
content captures hashed

Claims, one by one

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-a505847bd082eb21 quantitative
Since 2024 Bengaluru Traffic Police has been replacing fixed-time signals with camera-fed adaptive control, reaching 169 junctions by April 2025 — 155 existing junctions upgraded and 14 new ones — and moving into operations and maintenance
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Trade case study: by April 2025 the system had been deployed at 169 traffic junctions and transitioned into its operations and maintenance phase, phase one having upgraded 155 existing junctions and installed 14 new ones.
Caveat
The detailed account of the deployment is written by Arcadis, the project's own integrator.

Sources carrying this claim

  1. Indian Infrastructure — Case study of the Bengaluru Adaptive Traffic Control System (6 Apr 2026)
  2. PTI via ThePrint — Bengaluru police unveil adaptive traffic control system (9 Oct 2024)
Claim 2 clm-8847a0db00bdbc08 descriptive
It runs C-DAC's CoSiCoSt software with Arcadis IBI Group as integrator
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Trade case study: CoSiCoSt (Coordinated Signal Control Strategy), developed by C-DAC, is the technological backbone, with Arcadis IBI Group among the stakeholders defining the project.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Indian Infrastructure — Case study of the Bengaluru Adaptive Traffic Control System (6 Apr 2026)
  2. PTI via ThePrint — Bengaluru police unveil adaptive traffic control system (9 Oct 2024)
Claim 3 clm-374dd08183cf706e quantitative
in September 2025 the state cleared 56.45 crore rupees for 110 more junctions
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Report on the Karnataka cabinet decision of 25 September 2025: adaptive traffic signals at 110 junctions in Bengaluru for 56.45 crore rupees.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Deccan Herald — cabinet clears adaptive signals at 110 junctions (25 Sep 2025)
  2. PTI via The Week — Karnataka cabinet decisions, 25 September 2025
Claim 4 clm-80b6a73c07d1f38e descriptive
Ambulances and other emergency vehicles can claim signal priority through GPS tracking
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Trade case study: the Emergency Vehicle Priority System enables ambulances and other emergency responders to receive signal priority at intersections, using GPS-based tracking.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Indian Infrastructure — Case study of the Bengaluru Adaptive Traffic Control System (6 Apr 2026)
Claim 5 clm-bf3bbbce5ed0b854 descriptive
no measured corridor result either: the trade case study describes reduced travel time as a project aim rather than a finding
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Trade case study: B-ATCS 'aims to reduce travel time, lower vehicular emissions and enhance the overall commuting experience' — stated as an objective, with no before-and-after measurement given.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Indian Infrastructure — Case study of the Bengaluru Adaptive Traffic Control System (6 Apr 2026)
Claim 6 clm-11d56049b9cac43b quantitative
TomTom's 2025 index put Bengaluru second in the world for congestion at 74.4%, with peak traffic averaging 16.6 km/h and 168 hours lost per commuter a year
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Independent report on the TomTom Traffic Index 2025: Bengaluru ranked second among the world's most congested cities, average congestion level 74.4 per cent, commuters taking 15 minutes to travel 4.2 km at peak at an average 16.6 km/h, an annual loss of 168 hours per commuter.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Down To Earth — Bengaluru among the world's slowest cities (27 Jan 2026)
Claim 7 clm-cc204fd6269aead4 quantitative
in the year the system entered full operation Bengaluru ranked second in the world for congestion, at 16.6 km/h in the peak
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The system moved into full operations in April 2025; the TomTom index for 2025 ranks Bengaluru second in the world, at an average peak speed of 16.6 km/h.
Caveat
The two facts sit in the same year; neither source tests one against the other, and no causal claim is made here.

Sources carrying this claim

  1. Down To Earth — Bengaluru among the world's slowest cities (27 Jan 2026)
  2. Indian Infrastructure — Case study of the Bengaluru Adaptive Traffic Control System (6 Apr 2026)
Claim 8 clm-e8ff6f6346c09d07 descriptive
at several junctions the new signals jumped from green to red with no amber phase
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Local daily, 8 September 2025: Bengaluru's AI traffic signals cut out amber, with traffic experts noting the yellow light should ideally stay for six seconds before turning red.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Deccan Herald — City's AI traffic signals cut out amber (8 Sep 2025)

Source dossiers and revision state

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 2026-08-26-p1-quality-uplift effective 2026-08-26 · 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 2026-08-27T06:00:00Z. 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 2026-08-26T14:54:36Z on 2026-08-27; evidence: first appears in commit a70cba917d, committed 2026-08-26T14:54:36Z.
sha256:a1a5a1edd09ac64628ffbe5edb1b82df35c5ff575154ca10725328a94a816dd7
Revision history → Permanent version link → Machine-readable record → Evidence Constitution →
8
of 8 claims mapped
6
source dossiers
6
publication dates recorded
0
archives linked
0
exact locators
0
content captures hashed

Governance facts carried by the record

Operator
Bengaluru Traffic Police
Actor types
city-government
Funding model
public
Funding description
Not recorded
Cost
Not recorded
Ownership
Not recorded
Decision rights
Not recorded
Exit conditions
Not recorded

6 source dossiers

PTI via ThePrint — Bengaluru police unveil adaptive traffic control system (9 Oct 2024) theprint.in · 2 linked claims

Open original source ↗

Stable source ID
src-c20311da5d28f457
Publisher
Name not classified · theprint.in
Type / language
web-page · language not classified
Published
2024-10-09
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-26
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

Launch report: scope of the upgrade, C-DAC CoSiCoSt software and Arcadis IBI Group as integrator. The host answers automated retrieval with a stub page, so no publication date is recorded.

Descriptive only — not page/paragraph exact
Claims linked
PTI via The Week — Karnataka cabinet decisions, 25 September 2025 theweek.in · 1 linked claim

Open original source ↗

Stable source ID
src-5352de612634972a
Publisher
Name not classified · theweek.in
Type / language
web-page · language not classified
Published
2025-09-25
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-26
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

Cabinet approval for adaptive signals at 110 further Bengaluru junctions at 56.45 crore rupees from the state road safety fund.

Descriptive only — not page/paragraph exact
Claims linked
Indian Infrastructure — Case study of the Bengaluru Adaptive Traffic Control System (6 Apr 2026) indianinfrastructure.com · 5 linked claims

Open original source ↗

Stable source ID
src-605eb923fd8cfa35
Publisher
Name not classified · indianinfrastructure.com
Type / language
web-page · language not classified
Published
2026-04-06
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-26
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

Trade case study of 6 April 2026, bylined 'By Arcadis' — written by the project's own integrator. Gives 169 junctions by April 2025 (155 existing upgraded, 14 new), the move into operations and maintenance, C-DAC's CoSiCoSt as the core technology, the emergency-vehicle priority function, and reduced travel time stated as a project aim rather than a measured result.

Descriptive only — not page/paragraph exact
Claims linked
Down To Earth — Bengaluru among the world's slowest cities (27 Jan 2026) downtoearth.org.in · 2 linked claims

Open original source ↗

Stable source ID
src-07a013e49d01e232
Publisher
Name not classified · downtoearth.org.in
Type / language
web-page · language not classified
Published
2026-01-27
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-26
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 counterweight from the TomTom Traffic Index 2025: Bengaluru second most congested in the world, average congestion level 74.4%, 15 minutes to travel 4.2 km at peak, average speed 16.6 km/h, 168 hours lost per commuter a year.

Descriptive only — not page/paragraph exact
Claims linked
Deccan Herald — City's AI traffic signals cut out amber (8 Sep 2025) deccanherald.com · 1 linked claim

Open original source ↗

Stable source ID
src-e0cfa1c86c1cd9fe
Publisher
Name not classified · deccanherald.com
Type / language
web-page · language not classified
Published
2025-09-08
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-26
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

Documented operational complaint: signals jumping green to red without an amber phase at several junctions. Site returns 403 to automated fetching; existence, date and content confirmed via search.

Descriptive only — not page/paragraph exact
Claims linked
Deccan Herald — cabinet clears adaptive signals at 110 junctions (25 Sep 2025) deccanherald.com · 1 linked claim

Open original source ↗

Stable source ID
src-0cf977a9ce564e77
Publisher
Name not classified · deccanherald.com
Type / language
web-page · language not classified
Published
2025-09-25
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-26
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

Report on the Karnataka cabinet decision: adaptive traffic signals at 110 Bengaluru junctions for 56.45 crore rupees, funded from the state road safety fund.

Descriptive only — not page/paragraph exact
Claims linked
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.