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<p class="MsoNormal">Hi all,</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I had a look at how many street addresses are missing from OSM, which was rather simple thanks to the `ref:linz:address_id` tag which exists on most address points.</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Here are some stats:</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">- 1.9 million address points in OSM are still ‘perfect’ since the initial import in 2017.</p>
<p class="MsoNormal">- about 39,000 addresses in OSM almost perfectly match LINZ's data, but are just missing the `ref:linz:address_id` tag (the majority of these are in Te Anau and Napier where they were merged with buildings and the ref was removed)</p>
<p class="MsoNormal">- about 17,000 addresses have been modified by LINZ, so the OSM data is now out-of-date (e.g. spelling corrected, suburb changed)</p>
<p class="MsoNormal">- <300 addresses have been duplicated by mappers, so there are now two nodes with the same `ref:linz:address_id` tag</p>
<p class="MsoNormal">- And finally, 161,000 new addresses are totally missing from OSM.</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I'm a regular OSM contributor (username kylenz) and I've been thinking about how this dataset could be updated.</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Since the original import in 2017, the RapiD editor has emerged, which is a modified version of the iD editor, designed to speed up importing data in a controlled manner.</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I've created a detailed wiki page over at <a href="https://wiki.openstreetmap.org/wiki/Import/New_Zealand_Street_Addresses_(2021)">
https://wiki.openstreetmap.org/wiki/Import/New_Zealand_Street_Addresses_(2021)</a> which documents a proposal to use a custom version of the RapiD editor to import the new addresses, and to fix incorrect data in addresses. I've also created a quick proof-of-concept
which you can try out here: <a href="https://linz-addr.kyle.kiwi">https://linz-addr.kyle.kiwi</a> -
<b>NOTE:</b> it deliberately does not let you upload changesets (yet).</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I'd love to hear thoughts and feedback on this proposal, not least from those involved in the original import.</p>
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