<div dir="ltr">First off, I'm not mapping stop_area relations very often, only in case of ambiguity. A stop near to a side street, but the bus passes on the main street, or in bus stations where everything is very near to the other objects.<div><br></div><div>JOSM's PT_Assistant plugin uses them to figure out which stop_position + way adjacent to a highway=bus_stop node, if they are available. Usually it's possible to determine it geographically. It also only works if the stop_area relation contains pairs of stop_position / bus_stop nodes. If someone simply throws all stop_position nodes, bus_stop nodes and platform ways into them for stops on both sides of a street, or all stops in a bus station, they are useless for that purpose.</div><div><br></div><div>Since, at that level, I'm using them to pair stop objects, I also have a hierarchy of stop_area relations in some places. (bus stations adjacent to railway or metro stations). At some point I was using stop_area_group for that, but JOSM doesn't recognise that.</div><div><br></div><div>I don't know of any external app that uses them.</div><div><br></div><div>Polyglot</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Aug 1, 2019 at 9:13 AM Joseph Eisenberg <<a href="mailto:joseph.eisenberg@gmail.com">joseph.eisenberg@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">I'm trying to find out if the type=public_transport +<br>
public_transport=stop_area relation or *=stop_area_group relation is<br>
used by any developer or database user.<br>
<br>
These relations are supposed to group together features like all the<br>
platforms in a bus station or train station. However, it seems like<br>
these relations may not be necessary or useful for routing<br>
applications.<br>
<br>
Has anyone looked into them or know of any current use cases?<br>
<br>
Joseph<br>
<br>
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