<div dir="ltr"><div dir="ltr"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">The approved OSM tag for <a href="https://wiki.openstreetmap.org/wiki/Key:surface" target="_blank">surface=gravel</a> refers to railway ballast, not the fine crushed rock or natural surface that usually occurs on unpaved roads in Australia. However we call the fine unpaved surface "gravel" in common parlance, and many unpaved roads that don't constitute gravel as described in the OSM wiki have been tagged as gravel here, erroneously depending on your point of view.<br></blockquote><div><br></div><div>This is a matter of interest to me too. I spend a substantial amount of time running+riding on fire trails in NSW (all highway=track), and the surface type is useful and indeed used in a number of the route planners I use. I have changed a few roads back to 'unpaved' from 'gravel' due to the rule of following the description in the surface= guidelines rather than the name. </div><div><br></div><div>My question then however, is exactly what to tag the tracks beyond "unpaved".</div><div><br></div><div>There are definitely sections that are somewhat regularly graded and appear to have extra aggregate/fine gravel added. From the surface= wiki, these most closely align with surface=compacted. But fine_gravel is potentially an option too. Many of these are 2wd accessible when it is dry. (Typically smoothness=bad.)</div><div><br></div><div>There are also others, usually less travelled, which are bare rock, clay, dirt, sand, whatever was there. Is it best just to leave these as surface=unpaved, and add a smoothness=very_bad or horrible tag? None of the surface= tags really seem to apply.</div></div></div><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 23 Feb 2021 at 16:45, Little Maps <<a href="mailto:mapslittle@gmail.com">mapslittle@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">
<span></span>Hi Brian and co, in Victoria and southern NSW where I've edited a lot of roads, highway=track is nearly totally confined to dirt roads in forested areas, as described in the Aus tagging guidelines, viz: " highway=track Gravel fire trails, forest drives, 4WD trails and similar roads. Gravel roads connecting towns etc. should be tagged as appropriate (secondary, tertiary or unclassified), along with the surface=unpaved or more specific surface=* tag."<br><br><div>In your US-chat someone wrote, "...in the USA, "most" roads that "most" people encounter (around here, in my experience, YMMV...) are surface=paved. Gravel or dirt roads are certainly found, but they are less and less common." By contrast, in regional Australia, most small roads are unpaved/dirt/gravel. <br></div><div><br></div><div>In SE Australia, public roads in agricultural areas that are unpaved/dirt/gravel/etc are usually tagged as highway=unclassified (or tertiary etc), not highway=track. There are some exceptions in some small regions (for example in the Rutherglen area in NE Victoria) where really poor, rough 'double track' tracks on public road easements have systematically been tagged with highway=track rather than highway=unclassified. See here for example: <a href="https://www.openstreetmap.org/#map=13/-36.1424/146.3683" target="_blank">https://www.openstreetmap.org/#map=13/-36.1424/146.3683 </a>. However, this is not the norm in SE Australia and across the border in southern NSW, this type of road is nearly always tagged as unclassified, as it is elsewhere in Victoria. In SE Australia, my experience is that tracks are tagged in the more traditional way, and not as has been done in the USA. <br></div><div><br></div><div>If I could ask you a related question, what do you US mappers call "gravel"? The approved OSM tag for <a href="https://wiki.openstreetmap.org/wiki/Key:surface" target="_blank">surface=gravel</a> refers to railway ballast, not the fine crushed rock or natural surface that usually occurs on unpaved roads in Australia. However we call the fine unpaved surface "gravel" in common parlance, and many unpaved roads that don't constitute gravel as described in the OSM wiki have been tagged as gravel here, erroneously depending on your point of view. How do you use the surface=gravel tag in the USA? Cheers Ian</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Feb 23, 2021 at 2:49 PM Brian M. Sperlongano <<a href="mailto:zelonewolf@gmail.com" target="_blank">zelonewolf@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hello all,<div><br></div><div>Recently, there was a discussion on the talk-us list regarding how we use the tag highway=track. That discussion begins here:</div><div><div><a href="https://lists.openstreetmap.org/pipermail/talk-us/2021-February/020878.html" target="_blank">https://lists.openstreetmap.org/pipermail/talk-us/2021-February/020878.html</a><br><br>During that discussion, someone suggested that Australian mappers may also be using the highway=track tag in a similar way to US mappers. Hence this message :)</div><div><br></div><div>I've recently made edits to the wiki page for highway=track describing how the tag is used in the USA:</div><div><br><a href="https://wiki.openstreetmap.org/wiki/Tag:highway%3Dtrack#Usage_in_the_United_States" target="_blank">https://wiki.openstreetmap.org/wiki/Tag:highway%3Dtrack#Usage_in_the_United_States</a><br><br></div><div>If there is similarly a local variation in how this tag is used, I would encourage the Australian community to document their usage as well. </div><div><br></div><div>Brian Sperlongano</div><div>Rhode Island, USA</div></div></div>
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