<div dir="ltr"><div class="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div style="font-size:12.8px">Dear all,</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">I'm looking at this buildings import, </div><div style="font-size:12.8px"><span style="font-size:12.8px"><a href="https://wiki.openstreetmap.org/wiki/Northern_Zambia_Buildings_Import">https://wiki.openstreetmap.org/wiki/Northern_Zambia_Buildings_Import</a></span><br></div><div style="font-size:12.8px"><span style="font-size:12.8px"><br></span></div><div style="font-size:12.8px"><span style="font-size:12.8px">For the buildings It includes buildings near Fiwila, -13.9710, 29.6019, Zambia.</span></div><div style="font-size:12.8px"><span style="font-size:12.8px"><br></span></div><div><span style="font-size:12.8px">As well as East (e.g. -13.9762965, 29.5746642) and West (e.g. -13.970185, 29.6203484) of Fiwila. </span><br></div><div><span style="font-size:12.8px"><br></span></div><div style="font-size:12.8px">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.</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">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 <b>use field based operations </b>to contribute back to OpenStreetMap. <b>Data was verified by Akros Global Health contributors with assistance from the USAID GeoCenter's Remote Sensing Program</b>." (my bold).</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">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?</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">Many thanks!</div><div style="font-size:12.8px">Bjoern</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px"><br></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
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