Fig. 2
(Source: 1. http://www.ecoquartiers-geneve.ch/index.php?page=vauban-2. https://commons.wikimedia.org/wiki/File:Urban_Gardening_vor_dem_Theater_Freiburg.jpg–3. http://familypedia.wikia.com/wiki/Freiburg_im_Breisgau4. https://freiburg-vauban.de/en/quartier-vauban-2/–5. http://flatironbike.com/2013/04/04/sustainable-transportation-in-freiburg/)
The principle of equity postulated in the concept of sustainable development in the interventions realized in Freiburg GE