Road noise – zones exceeding limit values over 24h (Lden indicator)Bruit routier - Zones où les valeurs limites sont dépassées, sur 24h (indicateur Lden)

Bruit routier - Zones où les valeurs limites sont dépassées, sur 24h (indicateur Lden)Road noise – zones exceeding limit values over 24h (Lden indicator)

APIJoinable5/7Query nowOpen workbench Subscribe🇫🇷France

Website Docs

This API provides access to a dataset from a Strategic Noise Map covering road traffic noise for the Aix-Marseille-Provence metropolitan area (France). It identifies zones where noise limit values are exceeded over a 24-hour period, using the Lden indicator. The data was produced by Impédance Ingénierie on behalf of Métropole Aix-Marseille-Provence. Geometric shapes on the underlying map have been simplified. The dataset is local in scope and is published under a restriction: it must not be republished elsewhere, per an administrative note attached to the source record.--------------------------Ce jeu ne doit pas être republié ------------------ (voir commentaire dans la partie Admin) Cartographie de Bruit Stratégique Donnée produite par Impédance ingénierie pour le compte de la métropole Aix-Marseille Provence Sur la carte, les formes géographiques ont été sim...

environment

⬇ Export CSV List records Select & filter Run verified request Read the docs

Trust score

How is this computed?

fair

Weighted across five axes. Tap a ring for what it measures.

Data schema (20 fields)

Filterable via the API (18)

idnom_donneecodeinseenom_communecodectcodecommdatemajsourceanneecodedeptautoriteidcourbetypesourceindicetypeisophonevalidedebst_area_shst_perimet

Click a field to see example values.

Fill	Field	Type	Description
100%	id	double	Unique identifier for the record.Unique identifier for the record.
100%	nom_donneeNom donnee	text	Name of the dataset or noise study the record belongs to.Name of the dataset or noise study the record belongs to.
100%	codeinsee	text	INSEE code identifying the municipality.INSEE code identifying the municipality.
88.5%	nom_communeCommune name	text	Name of the municipality concerned.Name of the municipality concerned.
100%	codect	text	Code identifying the territorial sub-division (CT).Code identifying the territorial sub-division (CT).
100%	codecomm	text	Code identifying the municipality or commune grouping.Code identifying the municipality or commune grouping.
100%	datemaj	text	Date the record was last updated.Date the record was last updated.
100%	source	text	Organisation that produced the noise data.Organisation that produced the noise data.
100%	annee	text	Year the noise mapping study refers to.Year the noise mapping study refers to.
100%	codedept	text	Code of the department where the area is located.Code of the department where the area is located.
—	autorite	text	Identifier (e.g. SIREN) of the authority responsible for the data.Identifier (e.g. SIREN) of the authority responsible for the data.
—	idcourbe	double	Identifier of the noise contour curve.Identifier of the noise contour curve.
—	typesource	text	Category of noise source type (e.g. road type C).Category of noise source type (e.g. road type C).
—	indicetype	text	Type of noise indicator used, e.g. Lden.Type of noise indicator used, e.g. Lden.
—	isophone	double	Noise level threshold in decibels for the contour line.Noise level threshold in decibels for the contour line.
—	validedeb	text	Start date from which the data is considered valid.Start date from which the data is considered valid.
—	geo_shapeShape	geo_shape	Geographic polygon outlining the noise exceedance zone.Geographic polygon outlining the noise exceedance zone.
—	geo_point_2dGeo Point	geo_point_2d	Geographic coordinates of the zone's representative point.Geographic coordinates of the zone's representative point.
—	st_area_shSt area sh	double	Surface area of the shape, in square metres.Surface area of the shape, in square metres.
—	st_perimetSt perimet	double	Perimeter length of the shape, in metres.Perimeter length of the shape, in metres.

Schema captured from opendatasoft 3 days ago.

Query the data

Pick columns and a sort, then fetch a live preview straight from the source. Choose an API-filterable column (marked ▾) under “Where” to pick from its list of values.

Where=

Sort by

Sample data (5 records)

Record 1id: 550 · annee: 2021

{
  "id": 550,
  "annee": "2021",
  "codect": "Null",
  "source": "IMPEDANCE INGENIERIE",
  "datemaj": "11/06/2020",
  "autorite": "814 732 707",
  "codecomm": "Null",
  "codedept": "13",
  "idcourbe": 550,
  "isophone": 68,
  "codeinsee": "Null",
  "geo_shape": "[large value omitted]",
  "validedeb": "11/06/2021",
  "indicetype": "Lden",
  "nom_donnee": "Bruit routier type C LDEN - sur 24h (étude de bruit Impédance Ingénierie)",
  "st_area_sh": 280700.96575,
  "st_perimet": 24181.567461,
  "typesource": "C",
  "nom_commune": null,
  "geo_point_2d": {
    "lat": 43.53541659595946,
    "lon": 5.10310090648894
  }
}

Record 2id: 1060 · annee: 2021

{
  "id": 1060,
  "annee": "2021",
  "codect": "CT1",
  "source": "IMPEDANCE INGENIERIE",
  "datemaj": "11/06/2020",
  "autorite": "814 732 707",
  "codecomm": "131213",
  "codedept": "13",
  "idcourbe": 1060,
  "isophone": 68,
  "codeinsee": "13213",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            5.429675015452464,
            43.339012047481866
          ],
          [
            5.429636953141165,
            43.339001292336995
          ],
          [
            5.429624258847695,
            43.33900436758236
          ],
          [
            5.429637847986454,
            43.33902251268848
          ],
          [
            5.429705989329293,
            43.33900676151788
          ],
          [
            5.429675015452464,
            43.339012047481866
          ]
        ]
      ]
    },
    "properties": {}
  },
  "validedeb": "11/06/2021",
  "indicetype": "Lden",
  "nom_donnee": "Bruit routier type C LDEN - sur 24h (étude de bruit Impédance Ingénierie)",
  "st_area_sh": 8.33955000036,
  "st_perimet": 16.6366226265,
  "typesource": "C",
  "nom_commune": "Marseille 13e  Arrondissement",
  "geo_point_2d": {
    "lat": 43.339010584588806,
    "lon": 5.429659150017423
  }
}

Record 3id: 911 · annee: 2021

{
  "id": 911,
  "annee": "2021",
  "codect": "CT2",
  "source": "IMPEDANCE INGENIERIE",
  "datemaj": "11/06/2020",
  "autorite": "814 732 707",
  "codecomm": "132032",
  "codedept": "13",
  "idcourbe": 911,
  "isophone": 68,
  "codeinsee": "13032",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            5.330521803194759,
            43.57969220826395
          ],
          [
            5.33086410963972,
            43.57958719542927
          ],
          [
            5.330872493066007,
            43.579564961963285
          ],
          [
            5.330400184766532,
            43.5797281237273
          ],
          [
            5.330521803194759,
            43.57969220826395
          ]
        ]
      ]
    },
    "properties": {}
  },
  "validedeb": "11/06/2021",
  "indicetype": "Lden",
  "nom_donnee": "Bruit routier type C LDEN - sur 24h (étude de bruit Impédance Ingénierie)",
  "st_area_sh": 68.3080499963,
  "st_perimet": 87.7020883079,
  "typesource": "C",
  "nom_commune": "Éguilles",
  "geo_point_2d": {
    "lat": 43.57965348262115,
    "lon": 5.330615498371426
  }
}

Record 4id: 617 · annee: 2021

{
  "id": 617,
  "annee": "2021",
  "codect": "CT3",
  "source": "IMPEDANCE INGENIERIE",
  "datemaj": "11/06/2020",
  "autorite": "814 732 707",
  "codecomm": "132051",
  "codedept": "13",
  "idcourbe": 617,
  "isophone": 68,
  "codeinsee": "13051",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            5.131606275653091,
            43.59777632739548
          ],
          [
            5.131602505934339,
            43.59777820155222
          ],
          [
            5.131607292349494,
            43.59778035785086
          ],
          [
            5.131606275653091,
            43.59777632739548
          ]
        ]
      ]
    },
    "properties": {}
  },
  "validedeb": "11/06/2021",
  "indicetype": "Lden",
  "nom_donnee": "Bruit routier type C LDEN - sur 24h (étude de bruit Impédance Ingénierie)",
  "st_area_sh": 0.09649999982,
  "st_perimet": 1.49772128952,
  "typesource": "C",
  "nom_commune": "Lançon-Provence",
  "geo_point_2d": {
    "lat": 43.5977778846404,
    "lon": 5.131605831479406
  }
}

Record 5id: 293 · annee: 2021

{
  "id": 293,
  "annee": "2021",
  "codect": "CT2",
  "source": "IMPEDANCE INGENIERIE",
  "datemaj": "11/06/2020",
  "autorite": "814 732 707",
  "codecomm": "132071",
  "codedept": "13",
  "idcourbe": 293,
  "isophone": 68,
  "codeinsee": "13071",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            5.293940497191375,
            43.41722485912917
          ],
          [
            5.294602274699358,
            43.41686531883637
          ],
          [
            5.295346375984279,
            43.41631025394162
          ],
          [
            5.294758074528285,
            43.41650884732265
          ],
          [
            5.292963626015197,
            43.41780770367233
          ],
          [
            5.293940497191375,
            43.41722485912917
          ]
        ]
      ]
    },
    "properties": {}
  },
  "validedeb": "11/06/2021",
  "indicetype": "Lden",
  "nom_donnee": "Bruit routier type C LDEN - sur 24h (étude de bruit Impédance Ingénierie)",
  "st_area_sh": 3333.00944994,
  "st_perimet": 523.281714306,
  "typesource": "C",
  "nom_commune": "Les Pennes-Mirabeau",
  "geo_point_2d": {
    "lat": 43.4168979770406,
    "lon": 5.294360369125102
  }
}

Live sample captured at profiling time — values may have changed upstream.

Verification Status

Using the API

Configuration

Base URL: https://data.ampmetropole.fr/api/explore/v2.1/catalog/datasets/bruit-routier-type-c-lden-sur-24h-etude-de-bruit-impedance-ingenierie

License

Licence Ouverte 2.0 (France / Etalab)Open

✓ Redistributable
✓ Attribution required

Query examples

curl -s 'https://data.ampmetropole.fr/api/explore/v2.1/catalog/datasets/bruit-routier-type-c-lden-sur-24h-etude-de-bruit-impedance-ingenierie/records?limit=20' -H 'Accept: application/json'

First 20 records of the dataset as JSON.

Uses the Opendatasoft Explore v2.1 syntax — supports select, where, group_by and order_by.

Full API documentation ↗

Rate limits

5 000 req/day

per ipmeasured

observed 3 days ago

Dataset

Volume & freshness

Records

2.0k

2046

Last upstream update

8 months ago

2026-03-12

License

No license declared upstream.

○ Documentation○ Data dictionary○ Versioning

Source: opendatasoft

Machine-readable & source

JSON

Embed this badge in a README or wiki — it always shows the latest verification state and quality tier.