1001 Smart Cities

Permanent project revision

DIGI-V Intelligent Traffic Control

Revision 2026-08-22-evidence-baseline · effective 2026-07-15

Current revision. This is the snapshot used by the live entity page.

unreviewed

Created the first structured Evidence Passport with 8 claims and 3 source dossiers.

sha256:61266a5f1fb7ec4ccc06443c67ab6bb8fb062144cc069bee7cdc9dc86fe4ccf7
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
3
source dossiers
2
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-01e440f37a5cc446 descriptive
traffic lights on Wiesbaden's main road network were fitted with new control and sensor technology
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The city's official DIGI-V page describes the project as the 'Digitalisierung und intelligente Vernetzung aller Ampelanlagen im Hauptstraßennetz Wiesbadens' — the digitalisation and intelligent networking of all signal systems in Wiesbaden's main road network — matching the claim that signals on the main road network were fitted with new control/sensor technology.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Landeshauptstadt Wiesbaden (authority)
Claim 2 clm-9d49c1a08a6d4e66 descriptive
feeding an adaptive control centre that adjusts signals in real time
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The city page states: 'Alle gesammelten Daten laufen zentral zusammen und werden in Echtzeit analysiert. Dadurch können die Ampelschaltungen flexibel an die aktuelle Verkehrssituation angepasst werden.' (All collected data come together centrally and are analysed in real time, allowing signal timings to be flexibly adapted to the current traffic situation.)
Caveat
The source describes centralised, real-time data processing that feeds signal adjustments; it does not itself use the term 'control centre'.

Sources carrying this claim

  1. Landeshauptstadt Wiesbaden (authority)
Claim 3 clm-6d0ea03355f59419 quantitative
to ease congestion and cut NO2
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The city's page states the project's aim as 'Weniger Staus, saubere Luft und mehr Lebensqualität durch intelligente Ampeln, Echtzeitinfos und innovative Technik' (less congestion, cleaner air and more quality of life through smart signals, real-time information and innovative technology), and describes 'Pförtnerampeln' (gatekeeper signals) at strategic entrances to the city centre that 'sorgen dafür, dass der Verkehrsfluss gezielt reguliert wird, sodass Überlastungen und Staus deutlich reduziert werden' (ensure traffic flow is specifically regulated so that overloads and congestion are significantly reduced).
Caveat
This is the operator's stated goal, not an independently measured, achieved reduction. The page frames elevated NOx levels as historical background ('Lange Zeit hatte Wiesbaden regelmäßig Probleme mit erhöhten Stickoxid-Werten') and lists NO2 monitoring as a system function, but no listed source reports a measured before/after change in NO2 or congestion attributable to DIGI-V.

Sources carrying this claim

  1. Landeshauptstadt Wiesbaden (authority)
Claim 4 clm-460efa3de31679c9 descriptive
One of Germany's most extensive urban traffic digitalisations
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Both the operator and its delivery partner describe the project in superlative terms, though not with this exact wording. The city's page states: 'Als erste Stadt Deutschlands hat Wiesbaden seine Verkehrsinfrastruktur so umfangreich digitalisiert' (As the first city in Germany, Wiesbaden has digitalised its traffic infrastructure this comprehensively). Siemens Mobility's press release calls it 'unique in Germany so far'.
Caveat
This is a self-description by the operator and its supplier, not an independently verified comparison against other German cities' traffic-digitalisation projects. Neither source actually uses the phrase 'most extensive', and no third-party ranking or study is cited to substantiate the comparison.

Sources carrying this claim

  1. Landeshauptstadt Wiesbaden (authority)
  2. Siemens Mobility (partner)
Claim 5 clm-434036ae58b55b8a quantitative
commissioned in 2021
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The federal funder's page lists the DIGI-V project duration as '01.05.2018 – 31.08.2021', consistent with the project being commissioned/completed in 2021.
Caveat
The source gives a funding period ending 31 August 2021, not an explicit commissioning or go-live date; no listed source gives an exact operational start date.

Sources carrying this claim

  1. Bundesministerium für Verkehr (funder)
Claim 6 clm-f1c42b905e098ba2 quantitative
digitalised in a ~EUR30M project
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The federal funder's page lists the DIGI-V project volume as '32.950.739 €' (€32,950,739).
Caveat
The source's precise figure (€32.95M) is roughly 10% higher than the entry's rounded '~EUR30M' — a closer rounding would be about €33M.

Sources carrying this claim

  1. Bundesministerium für Verkehr (funder)
Claim 7 clm-b268d1c2fc5eed9a quantitative
(EUR15M federal)
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The federal funder's page states the federal funding share for DIGI-V as 'davon 16.475.369 € Förderanteil durch BMV' (of which €16,475,369 is the BMV funding share).
Caveat
The precise federal contribution (€16.475M) is roughly 10% higher than the entry's rounded 'EUR15M' — a closer rounding would be about €16.5M.

Sources carrying this claim

  1. Bundesministerium für Verkehr (funder)
Claim 8 clm-d302417a41f236fd descriptive
one of Germany's most extensive urban traffic digitalisations
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
As in the snippet, the operator and its delivery partner both describe the project as exceptional. The city's page states: 'Als erste Stadt Deutschlands hat Wiesbaden seine Verkehrsinfrastruktur so umfangreich digitalisiert.' Siemens Mobility's press release calls it 'unique in Germany so far'.
Caveat
This is a self-description by the operator and its supplier, not an independently verified comparison against other German cities' traffic-digitalisation projects. Neither source uses the phrase 'most extensive', and no third-party ranking or study is cited.

Sources carrying this claim

  1. Landeshauptstadt Wiesbaden (authority)
  2. Siemens Mobility (partner)

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 2026-08-22-evidence-baseline effective 2026-07-15 · created 2026-08-22

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

sha256:61266a5f1fb7ec4ccc06443c67ab6bb8fb062144cc069bee7cdc9dc86fe4ccf7
Revision history → Permanent version link → Machine-readable record → Evidence Constitution →
8
of 8 claims mapped
3
source dossiers
2
publication dates recorded
0
archives linked
0
exact locators
0
content captures hashed

Governance facts carried by the record

Operator
Landeshauptstadt Wiesbaden
Actor types
city-government
Funding model
public
Funding description
German federal (BMVI) + city
Cost
≈€30M (€15M federal)
Ownership
Not recorded
Decision rights
Not recorded
Exit conditions
Not recorded

3 source dossiers

Landeshauptstadt Wiesbaden (authority) wiesbaden.de · 5 linked claims

Open original source ↗

Stable source ID
src-83ec696e306cfaa6
Publisher
Name not classified · wiesbaden.de
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-07-15
Dossier created
2026-08-22
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Official project page by the city/authority behind DIGI-V.

Descriptive only — not page/paragraph exact
Claims linked
Siemens Mobility (partner) press.siemens.com · 2 linked claims

Open original source ↗

Stable source ID
src-e3a1a9fed339c496
Publisher
Name not classified · press.siemens.com
Type / language
web-page · language not classified
Published
2018-12-14
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-07-15
Dossier created
2026-08-22
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Delivery partner (traffic unit now Yunex Traffic) press release on the contract.

Descriptive only — not page/paragraph exact
Claims linked
Bundesministerium für Verkehr (funder) bmv.de · 3 linked claims

Open original source ↗

Stable source ID
src-0d432cddcc2c5d1f
Publisher
Name not classified · bmv.de
Type / language
web-page · language not classified
Published
2020-11-17
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-07-15
Dossier created
2026-08-22
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Federal funder page confirming 227 signals, 400+ devices, ~EUR30M volume / EUR15M federal grant.

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.