1001 Smart Cities

Permanent project revision

LärmLAB Noise & Environment Network

Revision 2026-08-27-claims-and-sources · effective 2026-08-02

Superseded. A later revision exists: 2026-08-27-source-dating →

unreviewed

Created the first structured Evidence Passport with 9 claims and 3 source dossiers.

sha256:8a87dc2dbc7725d9c2d04d03431a8980a3f135483557d53a6deeb88b0815541d
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.
9
of 9 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-837e2b4fbe337e7d quantitative
LaermLAB has installed 67 noise and environmental sensors across eight East Hesse municipalities since 2024
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The March 2026 report states there are 67 stations distributed across the region and names the eight participating municipalities; the council release of 22 May 2025 describes the project as running since 2024 with those municipalities.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Hessenschau (press)
  2. Stadt Bad Hersfeld (authority)
Claim 2 clm-1094faf201fb56e7 descriptive
at points the Technische Hochschule Mittelhessen identified as noise hotspots along the existing railway, federal roads and motorways; some stations also count vehicles
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The council release states THM selected measurement locations identified as noise hotspots, including along the existing railway, federal roads and motorways, and that stations record noise and environmental data as well as vehicle counts.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Stadt Bad Hersfeld (authority)
Claim 3 clm-4e0e8fed3d1b321b descriptive
The measured sound levels are meant to be compared with, or fed into, Deutsche Bahn's simulation calculations for the planned Fulda-Gerstungen high-speed line
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The council release states the recorded sound-level values can be compared with Deutsche Bahn's simulation calculations or incorporated into them, to identify and plan the need and extent of noise-protection measures.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Stadt Bad Hersfeld (authority)
Claim 4 clm-01ec839c6e9b1128 descriptive
the research team is developing AI to tell reliably whether the noise at a station comes mainly from rail or from road
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The March 2026 report states the researchers want to develop an AI far enough that it can reliably distinguish whether the noise registered at a station comes mainly from rail or from road; the council release describes AI differentiating and assigning sounds as part of the project.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Hessenschau (press)
Claim 5 clm-8a0f6adf0ecea6f5 quantitative
At just under 90% of the network's measurement points, noise levels exceed WHO recommendations by day or by night, and at some houses the readings are up to 20 dB above the WHO recommendation
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The March 2026 report quotes the lead researcher: at just under 90% of the measurement points the recommended values are exceeded by day or at night, and at some houses the readings are up to 20 decibels above the WHO recommendation.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Hessenschau (press)
Claim 6 clm-c494b9552100b247 quantitative
In one garden on the project the researchers regularly measure more than 65 dB; the lead researcher notes that a rise of three decibels counts as a doubling of sound pressure
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The report describes a resident's garden where the researchers regularly measure more than 65 decibels, and quotes the researcher explaining that an increase of three decibels is physically a doubling of the sound level.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Hessenschau (press)
Claim 7 clm-9b7e210724f6d100 descriptive
Germany gives no legal right to noise protection along existing roads and railways — limits bind only for new construction or substantial change
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The March 2026 report states, citing LaermLAB, that there is no legal entitlement to noise protection on existing roads and railways in Germany, and that limits must be observed only for new construction or substantial changes.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Hessenschau (press)
Claim 8 clm-05a928dd2164715e quantitative
those limits follow the federal immission-control law, roughly 59 dB by day and 49 dB at night in residential areas, not the WHO recommendations this project measures against
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The same passage states the limits follow the federal immission-control law rather than WHO recommendations, giving about 59 decibels by day and 49 at night in residential areas.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Hessenschau (press)
Claim 9 clm-648614d1db6ed25f descriptive
separating rail noise from road noise is what lets a municipality argue with a railway rather than with a total
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The report quotes the researcher saying that being able to distinguish the source lets municipalities discuss the matter better with the railway.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Hessenschau (press)

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 2026-08-27-claims-and-sources effective 2026-08-02 · created 2026-08-27

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 2026-09-03T09:00:00Z. 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 2026-08-27T04:04:32Z on 2026-08-27; evidence: first appears in commit dc30e21e77, committed 2026-08-27T04:04:32Z.
sha256:8a87dc2dbc7725d9c2d04d03431a8980a3f135483557d53a6deeb88b0815541d
Revision history → Permanent version link → Machine-readable record → Evidence Constitution →
9
of 9 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
Stadt Bad Hersfeld, with Technische Hochschule Mittelhessen (THM Gießen) and [ui!] GmbH
Actor types
city-government, research, private
Funding model
grant
Funding description
Not recorded
Cost
€1.13M (state grant)
Ownership
Not recorded
Decision rights
Not recorded
Exit conditions
Not recorded

3 source dossiers

Smarte Region Hessen – Best Practice (reference) smarte-region-hessen.de · background

Open original source ↗

Stable source ID
src-1dda39cf3deba289
Publisher
Name not classified · smarte-region-hessen.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
2026-08-02
Dossier created
2026-09-03
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

A best-practice database page rather than a dated article.

Descriptive only — not page/paragraph exact
Claims linked
Background source; no baseline claim points here
Stadt Bad Hersfeld (authority) bad-hersfeld.de · 3 linked claims

Open original source ↗

Stable source ID
src-e97361b2b8069030
Publisher
Name not classified · bad-hersfeld.de
Type / language
web-page · language not classified
Published
2025-05-22
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-02
Dossier created
2026-09-03
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Official page by the city or public authority behind the project.

Descriptive only — not page/paragraph exact
Claims linked
Hessenschau (press) hessenschau.de · 7 linked claims

Open original source ↗

Stable source ID
src-12a65fe09eab473c
Publisher
Name not classified · hessenschau.de
Type / language
web-page · language not classified
Published
2026-03-14
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-02
Dossier created
2026-09-03
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

News coverage of the project.

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.