How to get a list of streets for a certain populated place?

General talk
1

I am very new with OpenStreetMaps and my feeling is that the learning curve is much too steep.:slight_smile:

What I need concretely, is as follows:
I am trying to extract lists of street names by names of populated places from OpenStreetMap / Overpass using e.g. the following Python code:


import requests

overpass_url = "http://overpass-api.de/api/interpreter"
overpass_query = """
[out:json];
  area
[name="Fulda"];
way(area)[highway][name];
out;
"""

response = requests.get(overpass_url, params={'data': overpass_query})
data = response.json()

In this way I can get more or less everything I need, but the problem is how to avoid the ambiguity with the place names: there is a city in Germany called Fulda and a number or places in the US. The code above returns streets in all of them. Is there a possibility to modify the query so that it filters for just one certain country, e.g. Germany?

PS. I have already asked on Stackoverflow, but got no answer, so I hope here it would be a more appropriate place to ask. TIA, :slight_smile:

2

Maybe that website can help:

Overpass area query by ID instead of by NAME
https://wiki.openstreetmap.org/wiki/Overpass_API/Overpass_QL#By_area_.28area.29

3

Hi R0bst3r,
thanks a lot, but this entails my next beginner’s question: how should I get the Area ID if I know the name of the populated place and the country? E.g. “Fulda” and “Germany” (or as an ISO country code, “de” or “ger”)? I have played around trying to obtain something like a place id using queroes like

https://nominatim.openstreetmap.org/search?format=json&city=Fulda&country=de

; in the response, you have both osm_id and place_id, but none of them relates to the city (and could thus be used as the area code suggested above) - is that correct?

4

You can query using more unique identifiers, for example wikipedia or wikidata tag.

Can you link which object you want to search inside?

5

Hello Mateusz,
and thanks. For instance, the city of Fulda in Germany (not the hamlets of the same name in the US). How can I obtain the wikidata tag? And how do I use it in an Overpass query? Fulda is just an example; I am interested in many places in Europe that have their namesakes in the US and elsewhere. TIA, Stan

6

You can get the “relation” id for are of Fulda, Germany by searchin on osm.org.
Link: https://www.openstreetmap.org/relation/454863
So your area ID is 454863.

On this relation you can also find wikidata, regionalschluessel, admin_level etc.

You will also get more help in the subforums, maybe in the german? https://forum.openstreetmap.org/viewforum.php?id=14

7

Hi R0bst3r,
and thanks for your reply. It is really interesting. I understand now that that ID is the so called ‘osm_id’, e.g. if I run the query

https://nominatim.openstreetmap.org/search?format=json&city=Fulda&country=de

I get it there. Thanks a lot, this really helps.

PS. Besten Dank aus Potsdam :slight_smile: Ich bevorzuge Englisch als Websprache: man erreicht mehr Leute :slight_smile: :slight_smile:

8

Still a last (hopefully) question:
What query do I need exactly to send to get the streets ??


[out:json];
way(area:454863)[highway][name];
out;

This one does not work, nor do my other attempts. The page ‘https://wiki.openstreetmap.org/wiki/Overpass_API/Overpass_QL#By_area_.28area.29’ may be a great resource for OSM pundits, but not for an average user (who only needs to use it).
I would be thankful for all hints. Stan.

9

Even if it is too late: this works if it is what you expected?

[out:json];
area[name="Bonn"];
way(area)[highway][name];
out;
10

Thanks R0bst3r,
the thing is: there are two places named Bonn: the one upon Rhein and one in Ohio. How can I get the streets only in one of them?

11

Take a look at https://dev.overpass-api.de/overpass-doc/en/full_data/area.html

12

@PHerison: What section exactly do you mean? If that ‘Area inside an Area’, replacing ‘London’ to ‘Bonn’ and ‘England’ to ‘Germany’ brings an empty response. Thanks a lot!