National road access

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This dataset provides a geographic mapping of Switzerland's national road network, based on classifications from the Federal Roads Office (ASTRA), the federal authority responsible for national roads and motorways. Published through the Canton of Valais geoportal, it forms part of broader cantonal geodata infrastructure. The dataset can be used to identify and locate national roads within Switzerland, supporting spatial analysis, infrastructure planning, and integration with other geographic information systems at cantonal or federal level.Mapping of the national roads according to the Federal Office for Roads (ASTRA)

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Data schema (14 fields)

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Field	Type	Description
OBJECTID	oid	Internal unique identifier for the record.Internal unique identifier for the record.
ID	integer	Unique identifier of the road axis segment.Unique identifier of the road axis segment.
Propriétaire	string	Owner of the road, e.g. federal (CH).Owner of the road, e.g. federal (CH).
Numero_axeNumero axe	string	Code identifying the national road axis.Code identifying the national road axis.
nom_axeNom axe	string	Name of the road axis or section.Name of the road axis or section.
Position	string	Position indicator for the road segment.Position indicator for the road segment.
Date_importDate import	date	Date the data was imported.Date the data was imported.
Nom_segment_axeNom segment axe	string	Name of the sub-segment within the axis.Name of the sub-segment within the axis.
Nbr_segment_axeNbr segment axe	double	Number of this segment within the axis.Number of this segment within the axis.
Nbr_total_axeNbr total axe	double	Total number of segments in the axis.Total number of segments in the axis.
longueur_axeLongueur axe	double	Total length of the road axis, in metres.Total length of the road axis, in metres.
Nbr_PR_segmentNbr pr segment	double	Number of reference points (PR) in the segment.Number of reference points (PR) in the segment.
longueur_segmentLongueur segment	double	Length of the segment, in metres.Length of the segment, in metres.
Shape__LengthShape length	double	Geometric length of the feature, in metres.Geometric length of the feature, in metres.

Schema captured from arcgis 1 month ago.

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Sample data (3 records)

Record 1ID: 134088 · nom_axe: Aire de ravitaillement du Gd. St-Bernard

{
  "ID": 134088,
  "nom_axe": "Aire de ravitaillement du Gd. St-Bernard",
  "OBJECTID": 1,
  "Position": "=",
  "Numero_axe": "N9_RGDS",
  "Date_import": 1777420800000,
  "longueur_axe": 1370.223,
  "Nbr_total_axe": 12,
  "Propriétaire": "CH",
  "Shape__Length": 545.7366340910287,
  "Nbr_PR_segment": 3,
  "Nbr_segment_axe": 4,
  "Nom_segment_axe": "S4",
  "longueur_segment": 377.983
}

Record 2ID: 134126 · nom_axe: 28 Sierre-Ouest

{
  "ID": 134126,
  "nom_axe": "28 Sierre-Ouest",
  "OBJECTID": 2,
  "Position": "=",
  "Numero_axe": "N9_SIEO",
  "Date_import": 1777420800000,
  "longueur_axe": 1884.613,
  "Nbr_total_axe": 15,
  "Propriétaire": "CH",
  "Shape__Length": 715.8620282831902,
  "Nbr_PR_segment": 4,
  "Nbr_segment_axe": 4,
  "Nom_segment_axe": "S1",
  "longueur_segment": 495.533
}

Record 3ID: 134131 · nom_axe: 35 Brig-Zentrum

{
  "ID": 134131,
  "nom_axe": "35 Brig-Zentrum",
  "OBJECTID": 3,
  "Position": "=",
  "Numero_axe": "N9_BRIZ",
  "Date_import": 1777420800000,
  "longueur_axe": 810.668,
  "Nbr_total_axe": 7,
  "Propriétaire": "CH",
  "Shape__Length": 475.45689307476914,
  "Nbr_PR_segment": 3,
  "Nbr_segment_axe": 2,
  "Nom_segment_axe": "S3",
  "longueur_segment": 328.255
}

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

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