Query OSM nodes not member of way in Overpass

Question

How can I query OSM nodes that are not member of ways? I want to get the nodes which tagged with (traffic_calming=bump) and not member of any ways.

Answer 1

Here is a different approach which I based on the Orphaned nodes example:

[bbox:{{bbox}}];
rel; > -> .r;
way; > -> .w;
(( node["traffic_calming=bump"]; - node.r; );  - node.w; );
out meta;

Answer 2

Querying for nodes which are not part of a way is covered by the city limit street signs example:

[bbox:{{bbox}}];
node[traffic_calming=bump] -> .allnodes;
way[highway](bn.allnodes);
node(w)[traffic_calming=bump] -> .waynodes;
(.allnodes; - .waynodes;);
out;