What's the easiest way to search for nodes by relation role?

Help and support
1

Taginfo can be used to find various lists, such as of objects’ roles within relations. I can sort that by “member nodes” to see which of these roles are applied to nodes within relations. What I don’t know how to easily do is to search by that relation role - I can see there are 37 “role=giudepost” somewhere, but where?

2

I’m not an Overpass expert but this worked to me (they are mostly in Czechia + 4 near Stuttgart btw):

[out:json];
relation["type"="route"]->.routes;
(
  node(r.routes:"giudepost");
);
out body;
>;
out skel qt;
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