Permanent project revision

Stockholm Congestion Charging Zone

Revision 2026-08-20-source-dates · effective 2026-07-17

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

unreviewed

Created the first structured Evidence Passport with 1 claim and 3 source dossiers.

sha256:29b45a53ec59d3d8ca858c992217531dd48b3e54e355752d9d76b436476667cc

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.

1: of 1 claims mapped
3: source dossiers
1: publication dates recorded
1: 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-7639f11a1af8e42b quantitative

Cordon traffic fell about 22% during the Jan–Jul 2006 trial, against a 10–15% target, cutting queue times 30–50%.

Published field: impact · verbatim
Mapping: mapped · no interpretation or interpolation added by this passport
What the mapping says: The snippet states the 2006 trial cut cordon traffic far more than forecast before the charge was made permanent in 2007.
Caveat: No claim-specific caveat recorded

Sources carrying this claim

Eliasson et al. 2009, Transportation Research Part A (peer-reviewed)

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 2026-08-20-source-dates effective 2026-07-17 · created 2026-08-20

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

sha256:29b45a53ec59d3d8ca858c992217531dd48b3e54e355752d9d76b436476667cc

Revision history → Permanent version link → Machine-readable record → Evidence Constitution →

1: of 1 claims mapped
3: source dossiers
1: publication dates recorded
1: archives linked
0: exact locators
0: content captures hashed

Governance facts carried by the record

Operator: Transportstyrelsen (Swedish Transport Agency)
Actor types: national-government
Funding model: public
Funding description: Not recorded
Cost: Not recorded
Ownership: Not recorded
Decision rights: Not recorded
Exit conditions: Not recorded

3 source dossiers

Transportstyrelsen (Swedish Transport Agency) transportstyrelsen.se · background

Open original source ↗

Stable source ID: src-44bd0e07574ccdc2
Publisher: Name not classified · transportstyrelsen.se
Type / language: web-page · language not classified
Published: 2025-12-29
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-07-17
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
National authority that administers the Stockholm congestion tax, including current hours and charge amounts.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Wikipedia — Stockholm congestion tax en.wikipedia.org · background

Open original source ↗

Stable source ID: src-34f3f735ca7211ea
Publisher: Name not classified · en.wikipedia.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: 2026-07-17
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: No archived copy linked
Content hash: No captured content hash
Locator: Open the recorded source note
Encyclopedia article with the full timeline: 2006 trial, September 2006 referendum, and 2007 permanent introduction.
Descriptive only — not page/paragraph exact
Claims linked: Background source; no baseline claim points here

Eliasson et al. 2009, Transportation Research Part A (peer-reviewed) sciencedirect.com · 1 linked claim

Open original source ↗

Stable source ID: src-e47e95217674bb83
Publisher: Name not classified · sciencedirect.com
Type / language: web-page · language not classified
Published: Not recorded
Updated: Not recorded
Source last checked: No source-level check date
Record last verified: 2026-07-17
Dossier created: 2026-08-20
Retrieved copy: No local capture recorded
Archive: Open archived copy ↗ · 2024-04-20
Content hash: No captured content hash
Locator: Open the recorded source note
Independent peer-reviewed evaluation confirming the ~22% cordon-traffic cut and 30–50% shorter queues in the 2006 trial.
Descriptive only — not page/paragraph exact
Claims linked: clm-7639f11a1af8e42b

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.