<div dir="ltr"><div>Hi</div><div><br></div><div>I agree with aqueduct as a system composed of bridges, tunnels, pipes and canal (not only a bridge crossing a valley).<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Le ven. 31 mai 2019 à 16:10, Mateusz Konieczny <<a href="mailto:matkoniecz@tutanota.com">matkoniecz@tutanota.com</a>> a écrit :<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><div></div><div>I think that in this case, with only<br></div><div><br></div><div>usage=headrace<br></div><div>waterway=canal<br></div><div><br></div><div>tags even a perfect renderer would have a trouble.<br></div></div></blockquote><div><br></div><div>That's right</div><div>It misses a structure</div><div>Tunnel and bridge can eventually help respectively for underground and overhead situations.</div><div>Another key or value have to be determined to describe overground lining (and other possibilities)</div><div><br></div><div>If the canal have a constant width, it can be added with width=* referring to water width at its surface<br></div></div></div>