Proximity search - node with tag1 near node with tag2

Question

Is there a way to search for a node situated within a given distance from at least one other node with a given tag?

Applications:

find benches near a body of water (seriously)
brothel near police (for fun)
swingerclub near place_of_worship
stripclub near kindergarten

Answer 1

Thankfully, the Overpass API supports an around operator. One needs to be careful with queries that return many nodes, and the query likely to return the fewest nodes should be first. Bounding boxes help.

Here's an example for the second query:

<query type="node">
  <has-kv k="amenity" v="brothel"/>
  <bbox-query {{bbox}}/>
</query>
<query type="node">
  <around radius="1000"/>
  <has-kv k="amenity" v="police"/>
</query>

<print/>

You can see it live for Berlin:

alt text

Proximity search - node with tag1 near node with tag2

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