OpenStreetMap (OSM) Data#

Overpass Turbo#

Overpass Turbo is a web-based data export tool for OSM. By running a query, you can download the data and import it into your project. You can either run it by writing your query on the left or by using the wizard which will assist you in writing your queries. Example
To search for schools in your bounding box or search area you can either write the query yourself or get it build by the wizard.
1. Check Tagging Guidelines
Search for it in the OSM wiki and/or taginfo. In our example it is: amenity=school
2. Write or build the query
Either use the wizard by tiping in amenity=school in Heidelberg or write your own query (f. e. for your bounding box):
Wizard:

../../_images/en_wizard_overpassturbo.png

Fig. 203 Screenshot of the Wizard in overpass turbo#

../../_images/en_wizard_result.png

Fig. 204 Screenshot of the result#

Query:

[out:json];  
(  
  node ["amenity"="school"](49.35,8.553,49.481,8.756);
  way ["amenity"="school"](49.35,8.553,49.481,8.756);
  relation ["amenity"="school"](49.35,8.553,49.481,8.756);
);
out;

Bounding Box
To query with a bounding box you need a special format. Specify it like so:

  • s (southern limit in decimal degrees, lowest latitude)

  • w (western limit in decimal degrees, lowest longitude)

  • n (northern limit in decimal degrees, highest latitude)

  • e (eastern limit in decimal degrees, highest longitude)

    • for example:

node ["key"="value"] (s, w, n, e);
         out;

Tip

For more information on the query language check out the Language Guide.

3. Download the data
One can export the results in various ways.

By exporting the data as f.e. GeoJSON you can later on import them in your QGIS project.

../../_images/en_overpass_turbo_data.png

Fig. 205 Screenshot of how to export data in overpassturbo#

By exporting the query as map, you can share your current view as link or image.

../../_images/en_overpass_turbo_map.png

Fig. 206 Screenshot of how to export map in overpassturbo#

By exporting your query you can get the text or convert it to an OverpassXML or OverpassQL formated query.

../../_images/en_overpass_turbo_query.png

Fig. 207 Screenshot of how to export query in overpassturbo#

Tip

For more information, check out the wiki.

Ohsome tools#