>>>>> "sp" == Stephan Plepelits <[email protected]> writes:
> I don't think we have something like that, as - see above - the big > question here remains: what is an urban area and what is a rural one? sp> Statistics Austria provides maps with "urban areas" for Austria. Their sp> definition, either: sp> - a built-up area with cleary visible road classification sp> - a group of houses sharing a place name sp> - a group of houses where the distance between each house is less than 200m sp> (Statistics Austria 2010, p. 1023). This is an interesting definition, and in areas where building outlines have been imported into OSM, some automated work to identify such boundaries would be possible. An alternative source of such data, for Europe, is available from the Corine land cover programme, which analyzes satellite imagery in different wavelengths to classify land use, using supervised machine learning techniques. They provide shapefiles of "continous urban fabric" and "discontinuous urban fabric". <http://www.eea.europa.eu/data-and-maps/data/clc-2006-vector-data-version> -- Eric Marsden _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
