<div dir="auto">Chipseal, asphalt, and concrete are three very different paving materials, with very different characteristics and behavior.<div dir="auto"><br></div><div dir="auto">From a road engineering perspective, being able to query our inventory database for exactly how much of each we have in a given area is absolutely critical.</div><div dir="auto"><br></div><div dir="auto">For OSM it's probably less critical, but if you're going to tag any more detailed than a true/false for "paved", then no, those values don't overlap at all. I can think of plenty of OSM-related uses of that information, at least.</div><div dir="auto"><br></div><div dir="auto">Chuck</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Jan 23, 2021, 11:52 Mateusz Konieczny via Talk-us <<a href="mailto:talk-us@openstreetmap.org">talk-us@openstreetmap.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div>I was helping a newbie mapper from US (on Discord) and discovered<br></div><div><a href="https://en.wikipedia.org/wiki/Chipseal" target="_blank" rel="noreferrer">https://en.wikipedia.org/wiki/Chipseal</a><br></div><div><a href="https://wiki.openstreetmap.org/wiki/Tag:surface%3Dchipseal" target="_blank" rel="noreferrer">https://wiki.openstreetmap.org/wiki/Tag:surface%3Dchipseal</a><br></div><div><br></div><div><a href="https://wiki.openstreetmap.org/w/index.php?title=Tag:surface%3Dchipseal&oldid=1388275" target="_blank" rel="noreferrer">https://wiki.openstreetmap.org/w/index.php?title=Tag:surface%3Dchipseal&oldid=1388275</a><br></div><div>(how surface=chipseal looked until today)<br></div><div><br></div><div>Is it something considered as substantially different from regular asphalt concrete?<br></div><div><br></div><div>Is surface=chipseal valid value or pointless duplicate of surface=asphalt?<br></div><div><br></div><div>Is it something that should be eliminated or used more widely?<br></div><div><br></div><div>Should it be documented at <a href="https://wiki.openstreetmap.org/wiki/Key:surface" target="_blank" rel="noreferrer">https://wiki.openstreetmap.org/wiki/Key:surface</a><br></div><div>or considered as deprecated?<br></div><div><br></div><div>Asking on talk-us first as it appears to be common especially in rural USA.<br></div> </div>
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