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*** Presented by Jochen Topf at State of the Map 2013
*** For the video of this presentation please see http://lanyrd.com/2013/sotm/scpkrr/
*** Full schedule available at http://wiki.openstreetmap.org/wiki/State_Of_The_Map_2013
OpenStreetMap currently does not have a polygon or area data type. Instead areas are usually modelled as closed ways or multipolygon relations (plus some other approaches for special cases). This diversity in solutions for essentially the same problem makes editing and using OSM data much harder than it needs to be. Especially multipolygon relations are difficult to work with and they are quite brittle, leading to a lot of broken data in OSM. The talk will show the problems we currently have when editing and using OSM data. It will describe approaches for a solution with their advantages and disadvantages and the changes necessary to the core database, editors, and applications using OSM data.