| 1R | First-rank (largest) settlement within a country |
| CA | Catchment area |
| DEGURBA | Degree of urbanisation |
| EU | European Union |
| GAUL | Global Administrative Unit Layer |
| GHSL | Global Human Settlement Layer |
| GHS-POP | GHSL gridded population estimates |
| GIS | Geographic information system |
| GTFS | General Transit Feed Specification |
| HEI | Higher education institution |
| JRC | European Commission Joint Research Centre |
| N1R | Not the largest settlement within a country (i.e., not 1R) |
| NSO | National statistical office |
| POI | Point of interest |
| PTR | Public transport |
| RC | Regional centre |
| RST | Rural and small town |
| SDG | United Nations Sustainable Development Goal |
Getting to Services in Towns and Villages
Preparing Regions for Demographic Change
