<div dir="ltr">I must comment here as I believe those two tags describe a situation quite common in Alaska. Many many smaller waterways cross under a highway in a special large diameter pipe called a culvert. The water flows through the culvert, both are below the roadbed and consequently they do not share or should not share any nodes. I map them using tunnel=culvert and the additional tag of layer=-1. The situation is exactly analogous to when a waterway flows under a bridge except in this case the bridge gets a layer=1 tag. A railway level crossing is quite different because the two ways do cross on the same layer. Here tagging a node is correct.<div><br></div><div>I cannot think of a situation where one would tag a culvert as a node unless it's to indicate an entrance to a very long, invisible culvert. </div><div><br></div><div>My 2 cents.</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Oct 25, 2015 at 7:12 PM, Georg Feddern <span dir="ltr"><<a href="mailto:osm@bavarianmallet.de" target="_blank">osm@bavarianmallet.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<div>Hello,<span class=""><br>
<br>
Am 25.10.2015 um 11:44 schrieb Gerd Petermann:<br>
</span></div><span class="">
<blockquote type="cite">
<div style="font-size:12pt;color:#000000;background-color:#ffffff;font-family:Calibri,Arial,Helvetica,sans-serif">
<p>I do not fully agree here. In Germany, I often see a traffic
sign "Vorsicht Düker"</p>
<p>(~ "Attention! Culvert") next to these culverts.</p>
<p>I am not sure why I should pay attention, but it seems that
some</p>
<p>people think that the traffic on the road should notify it.</p>
<p>Maybe because it also often means that there is a <br>
</p>
<p>barrier=fence along the road.<br>
</p>
<p><br>
</p>
<p>In fact I thought that these signs are the explanation for
the <br>
</p>
<p>use of tunnel=culvert on a node.</p>
<br>
</div>
</blockquote>
<br></span>
please be careful:<br>
A "Düker" is not a normal "culvert"!<br>
At a culvert the water is flowing on the same level in the culvert,
normally with airy room above water level in the culvert.<br>
At a "Düker" the water is "pressured" on a level below the normal
water level through the "Düker", so there is no room above water
level.<br>
The normal road traffic has not to obey these sign - but any street
work or use (crawling ;) ) at the waterside.<span class="HOEnZb"><font color="#888888"><br>
<br>
Georg<br>
</font></span></div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr">Dave Swarthout<br>Homer, Alaska<br>Chiang Mai, Thailand<br>Travel Blog at <a href="http://dswarthout.blogspot.com" target="_blank">http://dswarthout.blogspot.com</a></div></div>
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