<div dir="ltr">I don't see a problem with adding tags that enable validation to be performed, even if it means some redundancy in the data. But I may have misinterpreted the roundtrip tag myself.<div><br></div><div>Jo</div></div><div class="gmail_extra"><br><div class="gmail_quote">2018-05-25 11:52 GMT+02:00 Peter Elderson <span dir="ltr"><<a href="mailto:pelderson@gmail.com" target="_blank">pelderson@gmail.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Isn't that should-be tagging for the validator? I don't know if that's less frowned-upon than tagging for the renderer... <div>Besides, if you derive the tag from your tagging tool, couldn't the validator do that directly?</div></div><div class="gmail_extra"><div><div class="h5"><br><div class="gmail_quote">2018-05-25 11:15 GMT+02:00 Jo <span dir="ltr"><<a href="mailto:winfixit@gmail.com" target="_blank">winfixit@gmail.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">I tend to use roundtrip=yes when (after fixing) a route relation gets this double way icon next to the ways, instead of a single vertical line (JOSM only ofc).<div><br></div><div>If we all start using it that way, we could create a validator rule for checking the relation is still 'all right'.<br><div><br></div><div>Polyglot</div></div></div><div class="m_2481321244280769329HOEnZb"><div class="m_2481321244280769329h5"><div class="gmail_extra"><br><div class="gmail_quote">2018-05-25 11:10 GMT+02:00 Johnparis <span dir="ltr"><<a href="mailto:okosm@johnfreed.com" target="_blank">okosm@johnfreed.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Interesting. <div><br></div><div>Similarly, a route that is not closed can be a roundtrip. The start and end points might be several meters apart, even on different roads, yet serve the same destination. There are a few (very few) examples I have found in the Paris area. Here's one. It's not marked roundtrip=yes but probably should be:<div><br></div><div><a href="https://www.openstreetmap.org/relation/8140184" target="_blank">https://www.openstreetmap.org/<wbr>relation/8140184</a><br></div><div><br></div><div>I agree that this tag seems to be of very limited usefulness, though I confess to having used it on occasion.</div><div><br></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div class="m_2481321244280769329m_-8650081333079152095h5">On Fri, May 25, 2018 at 10:55 AM, Warin <span dir="ltr"><<a href="mailto:61sundowner@gmail.com" target="_blank">61sundowner@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="m_2481321244280769329m_-8650081333079152095h5">
<div text="#000000" bgcolor="#FFFFFF"><span>
<div class="m_2481321244280769329m_-8650081333079152095m_-5808504647183057509m_962521401168746793moz-cite-prefix">On 25/05/18 15:48, Peter Elderson
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">What is the use of the key:roundtrip?
<div>Explanations just say
<table class="m_2481321244280769329m_-8650081333079152095m_-5808504647183057509m_962521401168746793gmail-wikitable" style="font-size:13.3px;margin:1em 0px;background:rgb(249,249,249);border:1px solid rgb(170,170,170);border-collapse:collapse;color:rgb(0,0,0);font-family:sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial" width="100%" border="1" cellspacing="0" cellpadding="2">
<tbody>
<tr>
<td style="padding:0.2em 0.4em;border:1px solid rgb(162,169,177)"><tt dir="ltr" class="m_2481321244280769329m_-8650081333079152095m_-5808504647183057509m_962521401168746793gmail-mw-content-ltr" style="font-family:monospace,Courier;font-size:1em;direction:ltr;background:rgb(238,238,255);line-height:1.6"><a href="https://wiki.openstreetmap.org/wiki/Key:roundtrip" title="Key:roundtrip" style="text-decoration:none;color:rgb(11,0,128);background:none" target="_blank">roundtrip</a>=yes/no</tt></td>
<td style="padding:0.2em 0.4em;border:1px solid rgb(162,169,177)">(optional) Use roundtrip=no to
indicate that a route goes from A to B. Use
roundtrip=yes to indicate that the start and finish of
the route are at the same location (circular route).</td>
</tr>
</tbody>
</table>
It seems rather pointless to tag an obvious a-b route with
roundtrip=no, or an abvious roundtrip with roundtrip=yes. </div>
<div>Why would you tag an a-b route as roundtrip=yes, or a
closed route as roundtrip=no?<br clear="all">
</div>
</div>
</blockquote>
<br></span>
A route that is 'closed' can be a non round trip. <br>
For example the bus only does one circuit then goes on to another
route elsewhere. This can be done to provide services to both that
route and to other parts of the community with other routes. <br>
There may not be enough demand for a continuous circuit to be
viable. <br>
</div>
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<br></blockquote></div><br><br clear="all"><div><br></div></div></div><span class="">-- <br><div class="m_2481321244280769329gmail_signature" data-smartmail="gmail_signature">Vr gr Peter Elderson</div>
</span></div>
</blockquote></div><br></div>