<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class=""><br class=""></div><div class="">In Saudi Arabia a wadi is a mostly dry riverbed that carries water very infrequently (maybe a couple of times year).</div><div class=""><br class=""></div><div class="">Within most sandy bottomed wadi’s is at least one track (typically 4wd).</div><div class=""><br class=""></div><div class="">The exact location of the track within the wadi will change due to occasional flooding events.</div><div class=""><br class=""></div><div class="">I’ve read the discussion summary at <a href="http://wiki.openstreetmap.org/wiki/Talk:Tag:waterway=wadi" class="">http://wiki.openstreetmap.org/wiki/Talk:Tag:waterway%3Dwadi</a> but</div><div class="">I’m still not clear exactly how to tag this feature?</div><div class=""><br class=""></div><div class="">It seems:</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>- waterway=wadi</div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>- intermittent=yes</div><div class=""><br class=""></div><div class="">is ok.</div><div class=""><br class=""></div><div class="">But how to indicate can be vehicle track?</div><div class=""><br class=""></div><div class="">Is it ok to mark a track in the “rough” vicinity (i.e.: the track path will change between flooding events)?</div><div class=""><br class=""></div><div class="">Should the wadi “line” be marked in the centre between the edges?</div><div class=""><br class=""></div><div class="">Would these tags be ok for a: “sandy bottomed wadi; 4wd only"</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>waterway = wadi</div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>intermittent = yes</div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>highway = track</div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>tracktype = grade4</div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>4wd_only = yes</div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>surface = unpaved</div><div class=""><br class=""></div><div class="">Suggestions welcome.</div><div class=""><br class=""></div><div class=""> -Greg</div><div class=""><br class=""></div><div class="">--</div></body></html>