Location of subscriber (NRA) and optical (NRO) connection nodes in OpenStreetMap

Daily extract of the **connection nodes** subscribers (NRA) and optical (NRO) in metropolitan France present in the OpenStreetMap (OSM) open and collaborative database [1].

The layer is available in [MAGOSM](https://magosm.magellium.com/)
— accessible via public WMS and WFS services
— viewable, searchable and downloadable via the carto portal
— analysable over the last 30 days via the Change Tracking Portal

**Data model**
The OSM attributes used to filter the data are:

* Telecom =exchange
* Telecom =central_office
* man_made=telephone_office

We find in the layer all the objects concerned whether they are mapped in the form of a node, path or relationship in OSM. For polygons and multi-polygons, the geometry provided corresponds to the centroid, the original geometry is available in EWKT format via the attribute ‘osm_original_geom’ and the original type in a column ‘osm_type’.

Additional OSM attributes have been selected to enrich the main tags.
All attributes prefixed by “osm” (e.g. osm_user, osm_id...) are common properties similar to meta-data on the OSM object.

More information about:

* the ** hospital-specific data model** on the OSM Wiki page — EN:Tag:telecom=exchange [2]
* the **general OSM data model** is documented on the OSM Wiki page — Map Elements [3].
* the **modes and frequencies of use and combination of different attributes** within the OSM community on the TagInfo France service [4]

[1] https://wiki.openstreetmap.org/wiki/FR:Page_principale
[2] https://wiki.openstreetmap.org/wiki/FR:Tag:telecom%3Dexchange
[3] https://wiki.openstreetmap.org/wiki/FR:%C3%89l%C3%A9ments_cartographiques
[4] https://taginfo.openstreetmap.org/tags/?key=telecom&value=exchange#overview

**Credits**
© OpenStreetMap contributors http://www.openstreetmap.org/copyright

This data is produced collaboratively under ODbL license which requires identical sharing and attribution mention “© OpenStreetMap contributors under ODbL license” in accordance with http://osm.org/copyright