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Weather, environment, and disasters

DIW factory noise measurement.

Department of Industrial Works factory-noise measurement method and compliance formula for 24-hour average sound level, background noise, disturbance noise, and maximum sound level from factory operations.

Public Official PDF regulation and measurement-method document Free public On legal or standards change Open source
Runtime role

Catalog only

Access class

Public

Access type

Official PDF regulation and measurement-method document

Free status

Free public

Cadence

On legal or standards change

Last verified

2026-05-11

Access class note

Public web, file, catalog, or documented endpoint access with no paid gate implied in the source profile.

Used in layers

page reference only

Useful fields

station ID, station type, area type, timestamp, LAeq 1h, LAeq 24h, Lmin, Lmax, L90, preliminary flag, complaint category, standard used, airport or road context, barrier geometry, confidence

Reliability rating

High for official context; validate endpoint availability before automation.

Runtime truth

Runtime role

Catalog only

Production ready

Not yet

Entity scope

No runtime entity scope yet.

Observation scope

No live observation ingestion yet.

Decision scope

Not wired into active decisions yet.

Runtime note

Profiled in the atlas and public pages, but not yet connected to live graph computation.

How this helps travel recommendations

Turns noise data into source-backed decisions about hotel quietness, roadside exposure, airport-neighborhood caution, nuisance-complaint routing, factory or construction risk, and how much confidence to place in a station versus a proxy.

Endpoint and API notes

Department of Industrial Works factory-noise measurement method and compliance formula for 24-hour average sound level, background noise, disturbance noise, and maximum sound level from factory operations.

Open the source endpoint or documentation. Return to the Thailand data atlas.

Developer reference

Best endpoint

Use Noise4Thai and PCD CSV for ambient station truth, ECAP for complaint routing, CAAT and AOT materials for airport-noise context, DIW for factory measurement methods, Labour guidance for workplace exposure, and OSM only for noise barriers and source-proxy enrichment.

Recommended refresh

Refresh weekly or when the catalog metadata changes; many agency catalogs update irregularly.

Travel scoring role

Turns noise data into source-backed decisions about hotel quietness, roadside exposure, airport-neighborhood caution, nuisance-complaint routing, factory or construction risk, and how much confidence to place in a station versus a proxy.

Comparable / backup source

PCD Noise4Thai, PCD CSV, ECAP, NSO, CAAT, AOT, DIW, Labour, OSM, and any project-specific airport or EIA reports that stay publicly accessible.

Example request

# Source landing/download page; inspect linked resources before automation.
curl -L "https://www.diw.go.th/webdiw/wp-content/uploads/2021/07/law-fac-env-07012554.pdf"

Failure modes

  • There is no complete national live noise map for Thailand.
  • Ambient station readings do not prove a legal nuisance case by themselves.
  • Daily noise data can be preliminary and should not be treated as litigation-grade evidence.
  • Airport, factory, construction, nightlife, and workplace noise often live in reports, complaints, or private monitoring rather than public APIs.
  • Station coverage is sparse relative to neighborhood-level hotel or condo decisions.
  • Noise barriers and source proxies explain risk but are not measured dBA observations.
  • Batch files can change schema, naming, encoding, or publication cadence.

Last checked and source confidence

Last checked: 2026-05-11.

Source confidence: Treat this profile as strongest for the exact role named above. It is weaker when the source is stretched into live availability, legal proof, or traveler-fit decisions it does not directly prove.