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Attribute derivation from OSM
NetAScore allows to derive indicators for bikeability and walkability index computation from OpenstreetMap network data. By default, OSM data is automatically queried using the overpass turbo API. See also Configuration of the settings for additional options.
Since OSM is maintained by volunteers via open collaboration, attributes might be mapped in various ways. For interpretation of OSM attributes to derive indicator values NetAScore follows the recommended tagging schemes as shown in the OSM wiki, but tries to also cover frequently used alternative specifications.
While some of the NetAScore categories may overlap with OSM categories, there may be some differences. Therefore, please make sure to read the NetAScore indicator descriptions for further information.
More Information about the exact derivation of individual attributes will follow soon!
For now, please refer to the general definition of indicators in Attributes and Indicators and check the source code at sql/templates/osm_attributes.sql.j2.