openstreetmap completeness for england 03/10
DESCRIPTION
Set of maps which show the completeness of OpenStreetMap when compared to Ordnance Survey Meridian 2 database. For more details, see povesham.wordpress.comTRANSCRIPT
OpenStreetMap Completeness for England – March 2010
Dr Muki Haklay Department of Civil, Environmental and Geomatic Engineering, UCL [email protected]
Methodology
• Data compared to Meridian 2 (Now available from OS OpenData)
• For methodology see http://wp.me/p7DNf-3x
Change in completeness Mar 2008 – Mar 2010
Change in completeness with attributes
England – March 2008
England – March 2009
England – October 2009
England – March 2010
Specific areas
The following slides provide time series of the following areas:-South West (around Exeter)-London -Birmingham and the midlands -Manchester and Liverpool and the North West -Newcastle upon Tyne and the North East
March 2008
March 2009
October 2009
March 2010
March 2008
March 2009
October 2009
March 2010
March 2008
March 2009
October 2009
March 2010
March 2008
March 2009
October 2009
March 2010
March 2008
March 2009
October 2009
March 2010
Completeness with attributes
• The test for completeness with attributes checks that roads and streets names have been completed
• Until the release of Ordnance Survey data in 1st April 2010, this was a good indication for ground survey of an area
England – March 2008
England – March 2009
England – October 2009
England – March 2010
March 2008
March 2009
October 2009
March 2010
March 2008
March 2009
October 2009
March 2010
March 2008
March 2009
October 2009
March 2010
March 2008
March 2009
October 2009
March 2010
March 2008
March 2009
October 2009
March 2010
Sources of information and further details
• OpenStreetMap data• Ordnance Survey Meridian 2 provided by the Ordnance Survey Research Unit
and OS OpenData. This data is Ordnance Survey (c) Crown Copyright and Database rights 2010
• OpenStreetMap data provided by CloudMade and GeoFabrik from http://downloads.cloudmade.com/ and http://download.geofabrik.de/osm/ (based on data from OpenStreetMap and licensed under the terms of the Creative Commons Attribution Share-Alike 2.0 licence). The data originates from the OpenStreetMap community (see http://www.openstreetmap.org)
• The maps in this file are (cc-by-sa) Muki Haklay• Further information and discussion of these results at
http://povesham.wordpress.com