<div dir="ltr"><div><div><div><div><div>Hi Aun,<br><br></div>JOSM's validator warnings are just that, warnings. Some of them can be safely ignored. Of course if the route_master relation doesn't really add information, I'd say it's fine to omit it.<br><br></div>Here are some examples:<br><a href="https://www.openstreetmap.org/relation/3614368/history">https://www.openstreetmap.org/relation/3614368/history</a><br><a href="https://www.openstreetmap.org/relation/3612781/history">https://www.openstreetmap.org/relation/3612781/history</a><br><br></div>The tags on both relations are quite different. I like to have both of them, because I want to compare with data from the operators and then it's good to have all of them "behave" in the same way. The route_master to describe the line, the route relations to describe the itineraries for all the variations.<br><br></div>We have a few more of those with only one route relation. For example the one going in the other direction on our ring road or some school buses for students that only go from the station to the campus on Sunday evening. On Friday they have enough possibilities with the standard offered lines.<br><br><br></div>Polyglot<br></div><div class="gmail_extra"><br><div class="gmail_quote">2017-05-12 20:51 GMT+02:00 Aun Johnsen <span dir="ltr"><<a href="mailto:lists@gimnechiske.org" target="_blank">lists@gimnechiske.org</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">When is a route_master relation needed? For the area I am mapping, several of the routes are circular without any variations. That means I make 1 relation for each route, but adding a route master, I get a alert that I am uploading relations with only one member. I can understand the use of route_master where going and return route have different relations, or routes with several variations (I have routes with up to 10 variations in my area, but few of the variations are mapped until now as I focus on main routes).<br>
<span class="HOEnZb"><font color="#888888"><br>
Aun Johnsen<br>
</font></span><span class="im HOEnZb"><br>
> On May 12, 2017, at 15:38, <a href="mailto:tagging-request@openstreetmap.org">tagging-request@openstreetmap.<wbr>org</a> wrote:<br>
><br>
> Many lines on the London underground/overground/etc aren't well ordered,<br>
> there isn't a route master, etc etc. The node examples I provided are from<br>
> the Central line, that I've been working on.<br>
<br>
<br>
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