GeoZones

Simple geospatial and administrative reference. The purpose of this dataset is to provide a common geospatial and administrative repository based on opendata datasets. The goal is to be easily embedded in applications for self-completion, for example. There is no universality objective (levels are not comparable across countries) or absolute accuracy (most source datasets have an accuracy of 100 m). Nor is there any desire to reproduce the complexity of the graph of the territories. The data is produced in GeoJSON/WGS84. ## Model There are two types of objects: — levels — the zones ### Levels/Levels They allow the various known levels of the reference framework to be modelled and their theoretical relationships. Their name is transducible. ### Zones An area is the association of a unique identifier with geographical polygon, a level and a name. It has less a single code for the level. It may have several known identifiers, which are not necessarily unique. The name is optionally transducible (*ex:* European Union, World) The following attributes are exported to the GeoJSON: — **ID**: A unique identifier according to the specification [GeoID](https://github.com/etalab/geoids) — **code**: The unique identifier for a given date of the zone for its level — **Level**: The Identifier of the connecting level — **name**: The display name of the area in English *(maybe translated)* — **population**: Approximate/estimated population *(optional)* — **Area**: Estimated/approximative area in km² *(optional)* — **Wikidata**: Associated Wikidata node *(optional)* — **Wikipedia**: A reference to Wikipedia *(optional)* — **DBpedia**: A reference to DBPedia *(optional)* — **Flag**: A reference to the DBPedia flag *(optional)* — **blazon**: A reference to the DBPedia blazon *(optional)* — **Keys**: a dictionary of the different codes known for this area — **parents**: an unordered list of identifiers of the different known parents — **Ancestors**: list of possible ancestors — **Successors**: list of possible successors — **validity**: a validity period (object with ‘start’/‘end’ attributes) *(optional)* # # construction This dataset is built with the [GeoZones] tool(https://www.data.gouv.fr/fr/reuses/geozones/) whose code is [published on Github](https://github.com/etalab/geozones). You can find the [detail of French specificities](https://github.com/etalab/geozones/blob/master/LISEZMOI.md) on the repository. ## Possible future improvements ### Fields — Overall weight = f(population, area, level) ### Deliverables — Different details — Localised JSON — Translations into JSON (as an alternative hard format PO/MO current) — Level statistics (number of zones, coverage of attributes...) Historical ## — **30/04/2015**: first version — **15/04/2016**: adding the URLs of the coats/flags and an export using [msgpack](http://msgpack.org/) to reduce the size of the generated archive — **19/04/2016**: correction version providing a finer cutting of common shapes — **09/06/2016**: correction version adding parents for the municipalities of Corsica/DROM-COM and calculating the population for the districts — **15/06/2017**: version including data from [GeoHisto](https://github.com/etalab/geohisto) and using [GeoIDs](https://github.com/etalab/geoids), integrates 2017 data (COG, OSM). — **28/08/2017**: Addition of EPCIS history from [GeoHisto](https://github.com/etalab/geohisto). — **08/05/2019**: Switch to COG 2019, fix bugs, add the key ‘geonames’, switch to Wikidata, cantons and iris are no longer exported