The dark blue polygons on the map indicate areas that are currently being used for car parking.
Click on the ■
icons on the map to select an area.
The Parkulator calculates the area of the selected region being used for parking, and tells you how many houses could have been built in the space instead.
Click on the buttons to jump to different cities.
Click the square at the top-left of the map to get started.
Want more cities? Ask me at @thomasforth on twitter.
Use Chrome or Firefox (no IE support yet).
Parking polygons are extracted from OpenStreetMap and are the copyright of the OSM contributors.