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Linked Data Service: linking geodata

Linked Data

Linked data refers to using the Web to connect related data that were not previously linked. The data are identified, shared and referenced by Uniform Resource Identifier (URI). The Resource Description Framework (RDF) and the underlying standards like SPARQL are used to encode and link the data.


RDF is a W3C standard enabling to formulate statements about Web resources. Resources are described via statements composed of a subject a predicate and an object, thus RDF statements are called triples. The subject and the predicate in a triple are usually URIs, while the object can be either an URI or a literal value. RDF triples are stored in a Triples Store and exposed via a so called SPARQL Endpoint.

The main benefits of this approach are:

  • Data is given a context (the resources are semantically tagged)
  • Data is linked
  • Data is on the web (findable and reusable)


Query and browse the data

Data can be queried with SPARQL. SPARQL is the query language for RDF, the same way SQL is for relational databases.

The link to the SPARQL Endpoint of the Federal Spatial Data Infrastructure is below in “Further information”. Example queries are available in the documentation of the SPARQL Endpoint. is the Linked Data interface of the Federal Spatial Data Infrastructure that acts as a frontend to the SPARQL: data can be browsed in HTML format with a standard web browser.


Example queries


Available datasets

The following datasets of the Federal Spatial Data Infrastructure are currently available as Linked Data:

 Title Description
 swissBOUNDARIES 3D The administrative units and national boundaries of Switzerland and the Principality of Liechtenstein. Details

Public transport stops


Public transport stops in Switzerland, as well as other locations of operational or structural importance in public transportation (Operating points). Details

Generalized borders G1





On the basis of the more precise boundaries set by the Directorate of Cadastral Surveying and the Federal Office of Topography, the FSO makes available annually updated (from 2001) digital municipal boundaries of Switzerland at various levels of generalization. The generalization level G1 is most appropriate for cartographic visualizations at a scale between 1:300'000 and 1:600'000. Details
Statistics on hydropower plants (WASTA)
The statistics on hydropower plants (WASTA) contain data concerning the Swiss hydropower plants with an output of at least 300 kW. This includes technical data relating to aspects such as power output and expected production levels. Details
Road traffic accidents The data set of road accident locations describes the anonymized, localized individual data of road traffic accidents. Available data includes the type and severity of the accident, the time of the accident and the location and road type of the accident. The road accident locations are available throughout Switzerland in this model from 2011 onward. The data for a calendar year are available in the spring of the following year. However, individual digital data in various forms have been available since 1992. Details
Swiss National Forest Inventory The Swiss National Forest Inventory (NFI) records the current state and the changes of the Swiss forest.Here are published: the protection forest regions, the production regions and the economic regions. Details c/o
Bundesamt für Landestopografie
KOGIS (Koordination, Geoinformation und Services )
Seftigenstrasse 264
CH - 3084 Wabern
0041 58 469 03 15
0041 58 469 04 59


Bundesamt für Landestopografie
KOGIS (Koordination, Geoinformation und Services )
Seftigenstrasse 264
CH - 3084 Wabern