A new study by the GIScience Research Group of the University of Heidelberg (http://giscience.uni-hd.de) that compares the evolution of the crowdsourcing project OpenStreetMap (OSM) with the commercial dataset from TomTom/Teleatlas has just been published. It is available fulltext as Open Access at http://www.mdpi.com/1999-5903/4/1/1/ and covers the years 2009 to 2011 in Germany. As shown earlier […]