Goal: Collect and upload city boundaries.

_Note: You do not have to find and upload boundaries for NUTS2, NUTS3 and the countries, as we already have them in the system:

City boundaries

  1. Determine which city boundaries you want to select. Keep in mind that the boundaries you choose will play a crucial role for your circularity assessment (and data collection process). Consider whether you want to have your waste facilities, extraction sites, processing plants, and other economic activities in- or outside of your boundary, because it will drastically change the circularity assessment of your city.
  2. Locate the city boundaries in the form of shapefiles and upload them to the sublayer.

Tip: You may have found different file types or a geoservice (WMS or WFS) and are not sure which to use. WFS is the way to go, because those are the vector files and have shape files. WMS on the other hand is "raster" data, which doesn't help us.

Tip: You may have found a file and are not sure if it is correct. Try to open it in QGIS. Often, if you can open a file in QGIS, you can export from there into the shapefile format. (Here is a tutorial on how to save it in QGIS.)


  • select json data, which gives you something like in this example.
  • In your browser, click file > save page as and then add .json at the end of the file;
  • Finally, you can convert from Json to ESRI shapefile with a tool like

Also, some geospatial data pages have a WFS tool, which helps you to export in the right format, like for example, the QGIS WFS tool from PDOK.

The video describes how to obtain and upload boundaries. It gives tips on how to find them, for example, by checking OpenStreetMap and Wikipedia first before finding the official websites.