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<pre><span style="color:black">On Fri, 11 Feb 2022 at 07:52, Alan Mackie wrote:<o:p></o:p></span></pre>
<pre><span style="color:black">> On Wed, 2 Feb 2022 at 21:55, Andy Mabbett wrote:<o:p></o:p></span></pre>
<pre><span style="color:black">> <o:p></o:p></span></pre>
<pre><span style="color:black">> > On Wed, 2 Feb 2022 at 09:34, TomTom OSM wrote:<o:p></o:p></span></pre>
<pre><span style="color:black">> > <i><br>> > > To create the leads, our experienced GIS engineers compare the</i><o:p></o:p></span></pre>
<pre><i><span style="color:black">> > > geometry of the TomTom map to OSM. This geometry has been internally<o:p></o:p></span></i></pre>
<pre><i><span style="color:black">> > > validated by TomTom mappers.<o:p></o:p></span></i></pre>
<pre><i><span style="color:black">> ><o:p></o:p></span></i></pre>
<pre><i><span style="color:black">> > I think this is the sticking point: you were asked "How have these<o:p></o:p></span></i></pre>
<pre><i><span style="color:black">> > missing roads been validated?" and your reply is "[they have] been<o:p></o:p></span></i></pre>
<pre><i><span style="color:black">> > internally validated".<o:p></o:p></span></i></pre>
<pre><i><span style="color:black">> ><o:p></o:p></span></i></pre>
<pre><i><span style="color:black">> > So: *How* have they been validated? On-the-ground survey? Aerial<o:p></o:p></span></i></pre>
<pre><i><span style="color:black">> > imagery? Google Maps?<o:p></o:p></span></i></pre>
<pre><i><span style="color:black">> ><o:p></o:p></span></i></pre>
<pre><i><span style="color:black">> I actually found the speculation about GPS traces more encouraging than<o:p></o:p></span></i></pre>
<pre><i><span style="color:black">> the subsequent communication about "up to date imagery sources".<o:p></o:p></span></i></pre>
<pre><i><span style="color:black"><o:p> </o:p></span></i></pre>
<pre><i><span style="color:black">> My initial concern was undrivable "roads" that look good from the air. GPS<o:p></o:p></span></i></pre>
<pre><i><span style="color:black">> traces would at least suggest that someone finds them driveable. Saying<o:p></o:p></span></i></pre>
<pre><i><span style="color:black">> that GPS data isn't used renews my concern that OSM in the region could<o:p></o:p></span></i></pre>
<pre><i><span style="color:black">> degrade to "yet another bunch of remote guesswork".<o:p></o:p></span></i></pre>
<p class="MsoNormal"><span style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">Thank you for your additional comments and questions, Andy and Alan.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">We do not have GPS traces for these countries. Instead, our engineers make extensive use of Bing and Digital Globe imagery to validate the leads.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">Our editors use Maxar, Esri and Bing imagery to verify the roads they are creating.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">If you have any further questions or comments, just let me know.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">Marjan<o:p></o:p></span></p>
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