lingsplanen (1996) nævner anvendelse af bæredygtighedsindikatorer til at beskrive den nuværende til stand og måle fremskridt. ###>The Aalborg Charter emphasises the need to use in dicators of 'an urban systems sustainability' for policy-making and controlling efforts, while the Lisbon action plan (1996) mentions the use of sustainability indicators for describing the present state and measuring development.