[OSM-talk] quality of drawn way

[Abigail Brady]

On 5/10/07, Steve Chilton <S.L.Chilton at mdx.ac.uk> wrote:
> Does anyone have any hard facts about relative accuracies of NPE and
> Landsat, or is it variable and unquantifiable?

>From my experience using landsat and NPE to pick out features in an
area in which I have GPS trails, landsat is quite well aligned with
those trails, and NPE is variably off.  As a rule, I've been tracing
railway lines and canals and rivers off landsat, using NPE just as a
guide to what the shape ought to be (and thus which features I should
pick out).

-- 
Abi