In the city of Karviná, in your example, these two industrial buildings are much larger in reality than imported:
http://osm.org/go/0LZc_9WgW?m= http://osm.org/go/0LZc_2625?m= But they can be corrected in JOSM easily. And it is not a big deal. An excellent stadium and a soccer pitch are not mapped here: http://osm.org/go/0LZeTNDQl-?m= , it is not like some shed missing. But in general, the map of Karviná is impressive. Sometimes municipal databases were created in 90s, with obsolete equipment, by employees who could not care less. But sometimes they are of good or medium quality. An import can be reviewed and corrected with satellite imagery or a survey. So both approaches are mutually-reinforcing. brgds Oleksiy On 24.10.2014 12:48, Paweł Paprota wrote: > ... did an awesome import of addresses > and buildings. Now compare it with the Polish side: > > http://www.openstreetmap.org/#map=16/49.8719/18.5786 > ....
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