<div dir="ltr"><div dir="ltr">On Wed, 20 Nov 2019 at 06:18, Joseph Eisenberg <<a href="mailto:joseph.eisenberg@gmail.com">joseph.eisenberg@gmail.com</a>> wrote:</div><div dir="ltr"><br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">It looks like the original question is about man-made earth slopes,<br></blockquote><div><br></div><div>That's how I interpreted the original question.</div><div> <br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
however, and these are usually tagged man_made=embankment, with the<br>
line at the top of the slope as previously mentioned.<br></blockquote><div><br></div>Things get messy in the interface between OSM, the real world, and how we think</div><div class="gmail_quote">about things.  I generally think of embankments in connection with railways, where</div><div class="gmail_quote">they raise the level of the track.  They're not to stop things passing from one side to</div><div class="gmail_quote">the other, just a cheap alternative to a bridge or other structure.  However, the slopes</div><div class="gmail_quote">discussed here are designed to stop bullets passing from one side to another, so they're</div><div class="gmail_quote"> functioning as walls.  Then again, I've mapped several archaeological sites with</div><div class="gmail_quote"> earthen walls which are referred to by archaeologists as embankments.</div><div class="gmail_quote"><br></div><div class="gmail_quote">Note also that, in civil engineering, retaining walls made of earth are a thing.  See</div><div class="gmail_quote"> this video explaining mechanically stabilized earth walls:</div><div class="gmail_quote"> <a href="https://www.youtube.com/watch?v=0olpSN6_TCc">https://www.youtube.com/watch?v=0olpSN6_TCc</a></div><div class="gmail_quote"><br></div><div class="gmail_quote">-- <br></div><div class="gmail_quote">Paul</div><div class="gmail_quote"><br></div></div>