<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Sep 2, 2020 at 4:52 AM Robert Whittaker (OSM lists) <<a href="mailto:robert.whittaker%2Bosm@gmail.com">robert.whittaker+osm@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">On Tue, 1 Sep 2020 at 21:33, Mike Thompson <<a href="mailto:miketho16@gmail.com" target="_blank">miketho16@gmail.com</a>> wrote:<br>
> In specifying access constraints for the roads it manages, the US Forest service makes a distinction between ATVs, highway vehicles, and "OHVs > 50"."<br>
> The first two categories correspond to the tags motorcar=* and atv=* I think, but I have not been able to find an existing tag that corresponds to "OHVs > 50"." There is an ohv=* tag, but it seems to apply to all OHVs regardless of width as well as motorcycles.<br>
<br>
Have you looked at conditional access restrictions:<br>
<a href="https://wiki.openstreetmap.org/wiki/Conditional_restrictions" rel="noreferrer" target="_blank">https://wiki.openstreetmap.org/wiki/Conditional_restrictions</a> ?<br>
<br>
If ohv=* is understood as an access tag (though it doesn't appear at<br>
<a href="https://wiki.openstreetmap.org/wiki/Key:access" rel="noreferrer" target="_blank">https://wiki.openstreetmap.org/wiki/Key:access</a> ), then you could e.g.<br>
do something like ohv = no + ohv:conditional = yes @ (width > 50") to<br>
allow OHVs only if they are wider than 50".<br></blockquote><div>A variation on that might work:</div><div>if OHV > 50" is not allowed => ohv = yes + ohv:conditional = no @ (width > 50")</div></div><div class="gmail_quote"><br></div></div>