journal of air transportation vol 9 no 2 2004 an application the methodology for assessment sustainability transport system milan janic otb research institute built environment technical university delft netherlands abstract and operationalization concept a sustainable is recognised as important but complex operational policy task this paper represents academic effort to properly address problem assessing in particular presents based on indicator related dimensions s performance considered from aspects actors involved specific cases are selected illustrate proposed introduction what according numerous definitions should be whose absolute consumption non renewable energy resources fossil fuels emission greenhouse gases do not increase over time these criteria unsustainable daly 1991 whitelegg 1993 nevertheless since also acts
