[OSM-talk] People's Map

[Ed Avis]

Pieren <pieren3 <at> gmail.com> writes:

>>http://wiki.openstreetmap.org/wiki/Aerial_photography_funding_appeals
>
>The wiki says about this supplier:
>About $17 per sq km for basic 2 meter resolution photography.

Does that mean that each pixel covers an area roughly 2m by 2m?  If so this is
not any better than the Yahoo aerial imagery that OSM can already use for many
countries.  (It could still be worth buying for places not covered by Yahoo.)

The aerial photographs used by People's Map are from getmapping.com (in fact, it
seems to be run by the same people somehow) and those have a resolution of
either 25cm or 12.5cm.  That's the kind of detail that would really help with
mapping those council estates and car parks.

<http://www2.getmapping.com/Support/Aerial-Photography-Coverage-%281999-to-2003%29>

At this detail level they will sell a 10km * 10km area for 1850 GBP.  At least
nine such areas would be required to cover inner London (the area of a 'Mini
A-Z').  However, this price is for '1 to 10 hard copies' - I don't know how much
they would want in exchange for providing photos that can be used in OSM.  Since
OSM is a competitor to People's Map, they might ask a lot.

-- 
Ed Avis <eda at waniasset.com>