[Imports] Akros Global Health, offset?

[Bjoern Hassler]

Dear all,

I'm looking at this buildings import,
https://wiki.openstreetmap.org/wiki/Northern_Zambia_Buildings_Import

For the buildings It includes buildings near Fiwila, -13.9710, 29.6019,
Zambia.

As well as East (e.g. -13.9762965, 29.5746642) and West (e.g. -13.970185,
29.6203484) of Fiwila.

In Fiwila, the import matches Bing/DG imagery, and the road matches those
too. Hwoever, East and West, there is a clear offset of about 20m East-West.

The wiki page doesn't say how the data was collected. The wiki page states
"The main goal of this work is to not only do a large import of buildings
(268k records) into Zambia, but set an example for how Akros and other
organizations can *use field based operations *to contribute back to
OpenStreetMap. *Data was verified by Akros Global Health contributors with
assistance from the USAID GeoCenter's Remote Sensing Program*." (my bold).

So any thoughts on whether I should go by the Akros data (and offset
Bing/DG) or whether I should adjust the Akros import (in that area) to
match bing?

Many thanks!
Bjoern
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