<div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><font face="arial, sans-serif">The problem with a relation like this which tries to represent an area for a part of a mountain range (the "<span style="white-space:pre-wrap">Mürzsteg Alps") is not centimeter precision, but that it cannot be mapped accurately to even the nearest kilometer. </span></font></div><div dir="ltr"><span style="white-space:pre-wrap"><font face="arial, sans-serif"><br></font></span></div><div dir="ltr"><font face="arial, sans-serif"><span style="white-space:pre-wrap">Look at this area:</span> <a href="https://www.openstreetmap.org/relation/2247685#map=14/47.5438/15.3067&layers=C">https://www.openstreetmap.org/relation/2247685#map=14/47.5438/15.3067&layers=C</a></font></div><div dir="ltr"><font face="arial, sans-serif"><br></font></div><div><font face="arial, sans-serif">The currently defined area of the mountain range follows the river in the southwest, but then suddenly crosses the valley in a nearly straight line to the primary highway, and then follows this through a village, crossing a ridge and a stream on the way. </font></div><div><font face="arial, sans-serif"><br></font></div><div><font face="arial, sans-serif">There is no physical object that can be followed along that straight-line way.</font></div><div><font face="arial, sans-serif"><br></font></div><div><font face="arial, sans-serif">This leads to silly situations where half of a village in a valley is considered part of this mountain range, while the rest of the village on the other side of the main street is in a different "mountain range": <a href="https://www.openstreetmap.org/relation/2247474">https://www.openstreetmap.org/relation/2247474</a></font></div><div><font face="arial, sans-serif"><br></font></div><div><font face="arial, sans-serif">Boundaries like this are not verifiable because they cannot be confirmed to be correct, except by appealing to a semi-official authority, "the definition made by the local alpine club" (<a href="https://de.wikipedia.org/wiki/de:Alpenvereinseinteilung%20der%20Ostalpen?uselang=de#/media/Datei:AVE_Ostalpen.png" target="_blank">https://de.wikipedia.org/wiki/de:Alpenvereinseinteilung%20der%20Ostalpen?uselang=de#/media/Datei:AVE_Ostalpen.png</a>) - which in this case has defined an area which is convenient for their uses, but does not represent a physical reality. </font></div><div><font face="arial, sans-serif"><br></font></div><div><font face="arial, sans-serif">-- Joseph Eisenberg</font></div></div></div></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Dec 28, 2020 at 2:41 AM Martin Koppenhoefer <<a href="mailto:dieterdreist@gmail.com">dieterdreist@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><br>
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sent from a phone<br>
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> On 28. Dec 2020, at 11:10, Florian Kratochwil <<a href="mailto:florian@kratochwil.at" target="_blank">florian@kratochwil.at</a>> wrote:<br>
> <br>
> So, in my opinion, mountain ranges are verifiable, it is just difficult to verify because you have to look at many different sources, maybe even ask many people.<br>
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yes, mountain ranges are verifiable, but their borders are also fuzzy, and regardless how many sources you look at, you won’t be able to draw a border with centimeter precision (OpenStreetMap’s precision given by the coordinate precision). I.e. mapping mountain ranges as areas is inappropriate and unsuitable.<br>
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Cheers Martin <br>
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