[OSM-talk] Bing tracing mistakes (was Night of the living maps 07.02.2012 - a 'virtual' global mapping party)

[Matthias Meißer]

Hi,
I hope it's ok to move the discussion on a more general topic, so 
hopefully we can get the original thread for organisazion stuff.

Am 27.01.2012 11:54, schrieb Martin Koppenhoefer:
> 2012/1/27 Nick Whitelegg<Nick.Whitelegg at solent.ac.uk>:
>> Good idea but - I would like to urge some degree of caution on this in the
>> UK.
>
>
> +1, actually not only there.

Absolutely, this happened in the beginning even to myself. But lessons 
learned and I guess a lot of people in the community are able to take a 
critical at aerial imagery and add just things that they understand. 
This is why I suggested not to bring in to much new mappers, as well.

>
>
>> So if you're deriving footpaths or tracks from aerial imagery, please only
>> add them if it is *absolutely obvious* that they are paths or tracks.
>
>
> adding (and removing) stuff based on aerial imagery without local
> knowledge is always a problem. On the German list Sven Geggus wrote
> about a new house he had inserted from the construction drawing which
> he had himself georeferenced, and later someone deleted that and
> remapped a house from Bing which was demolished 3 years ago...
>
> So be careful and edit preferably in empty zones (which worldwide
> aren't hard to find).

Exactly this is the point! Be crititcal and if you aren't sure consult 
third party sources or let it be and add just a OSMBug.
I hope I got it right in the wiki and put enough/the right hints. Feel 
free to improve it.

bye
Matthias