[talk-au] Openstreetmap Quality Issues

[David Bannon]

I agree. Armchair mapping is useful for features difficult to survey and 
perhaps appropriate for (eg) roads not yet surveyed but it should never 
be applied to overwrite features already present, features probably 
accuratly mapped already.

The OSM wiki page on Armchair mapping used to make that clear, I have 
not looked at it recently....

David

On 19/10/13 12:07, Neil Penman wrote:
> I did that after the first revert.  However it didn't help :).  I 
> think it important to try to develop a culture that existing map data 
> should not be changed unless you know you are improving it.  If the 
> map shows a road network that differs from the Satellite in a way that 
> may be due to design then either you should contact the previous 
> mapper before changing it or you should get on your bike and head out 
> to the site to verify that the satellite imagery is in fact correct.
>
>
> On Sat, Oct 19, 2013 at 11:58 AM, John Henderson <snowgum at gmx.com 
> <mailto:snowgum at gmx.com>> wrote:
>
>     On 19/10/13 11:20, Neil Penman wrote:
>
>         Unfortunately the culture seems to have become that any accurate
>         local mapping should be replaced with unthinking tracing over
>         the top
>         of obsolete satellite imagery.
>
>
>     I find that it sometimes helps to add an appropriately-worded note to
>     the nodes or ways in question:
>     http://wiki.openstreetmap.org/wiki/Key:note
>
>     John
>
>
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