Towards quality metrics for OpenStreetMap

Volunteered Geographic Information (VGI) is currently a "hot topic" in the GIS community. The OpenStreetMap (OSM) project is one of the most popular and well supported examples of VGL Traditional measures of spatial data quality are often not applicable to OSM as in many cases it is not possible to access ground-truth spatial data for all regions mapped by OSM. We investigate to develop measures of quality for OSM which operate in an unsupervised manner without reference to a "trusted" source of ground-truth data. We provide results of analysis of OSM data from several European countries. The results highlight specific quality issues in OSM. Results of comparing OSM with ground-truth data for Ireland are also presented.

[1]  Jörgen Skågeby Semi-public end-user content contributions - A case-study of concerns and intentions in online photo-sharing , 2008, Int. J. Hum. Comput. Stud..

[2]  A. Zipf,et al.  A Comparative Study of Proprietary Geodata and Volunteered Geographic Information for Germany , 2010 .

[3]  Miriam J. Metzger,et al.  The credibility of volunteered geographic information , 2008 .

[4]  Dick C. A. Bulterman,et al.  Is It Time for a Moratorium on Metadata? , 2004, IEEE Multim..

[5]  Carmen Brando,et al.  Quality in User Generated Spatial Content: A Matter of Specifications , 2010 .

[6]  Gary J. Hunter,et al.  WHAT COMMUNICATES QUALITY TO THE SPATIAL DATA CONSUMER , 2007 .

[7]  Michael F. Goodchild,et al.  NeoGeography and the nature of geographic expertise , 2009, J. Locat. Based Serv..

[8]  Ricky Jacob,et al.  Using OpenStreetMap to deliver location-based environmental information in Ireland , 2009, SIGSPACIAL.

[9]  Esther M. Arkin,et al.  An efficiently computable metric for comparing polygonal shapes , 1991, SODA '90.

[10]  M. Haklay How Good is Volunteered Geographical Information? A Comparative Study of OpenStreetMap and Ordnance Survey Datasets , 2010 .

[11]  Michael F. Goodchild,et al.  A general framework for error analysis in measurement-based GIS , 2004, J. Geogr. Syst..

[12]  Alexander Zipf,et al.  Generating web-based 3D City Models from OpenStreetMap: The current situation in Germany , 2010, Comput. Environ. Urban Syst..

[13]  Miriam J. Metzger,et al.  behaviors on the perceived credibility of web-based information The role of site features, user attributes, and information verification , 2007 .