[OSM-talk] On the ground rule on the wiki

[Anthony]

On Mon, May 31, 2010 at 12:05 PM, Andrew <wynndale at lavabit.com> wrote:

> If anything is unclear on the ground the mapper needs to provide a source.
> That
> way other mappers can judge whether the source is legitimate.
>

That's a great point.  I hate fixing an area of map which is already in
place and coming across information which I can't verify.  Do I copy the
information blindly, assuming that the previous contributor must have
verified it, or do I delete it?  If everything is either "on the ground" or
has a link to a source, this would greatly simplify that dilemma.

Not completely, though.  It's sometimes quite difficult to verify road
names, especially when the road can't be reached by foot.  I guess the
safest thing to do then is delete the names and let someone else go back and
add them, especially if the roads have been significantly changed (I'm
thinking of the Tampa Airport Interchange Project which I see Nathan has
gone in and cleaned up quite nicely).

And then there's the road designations of primary/secondary/etc.  Not only
is that not "on the ground", it's not even verifiable.  In those cases I
just guess.  Or mark it as "highway=road" (see
http://www.openstreetmap.org/browse/way/47280788).
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