DE-2.2 :: Settlement Area Management and Environmental Compensation

Inner development in gaps in the built-up areas, brownfield regeneration, densification and replacement constructions are measures that confront municipalities with a number of challenges. These challenges include the establishment of new forms of cooperation between planning and environmental agencies, the adaption of planning and administrational processes to current demands and at the same time the development of management strategies in cooperation with private land owners. There are often conflicting goals in the revitalization of land regarding regulations related to nature and species protection and the potential presence of biotopes on degraded and abandoned land. The research questions resulting from these considerations are:
• How can the requirements of nature protection, especially species protection, be weighted and integrated in inner urban areas?
• How can the requirements of soil protection be integrated into the weighting of planning decisions, especially in sight of brownfield redevelopment with the aim of reducing the consumption of land in outskirt areas as well as soil-related compensation measures? (Stronger consideration of hemeroby concepts and climate impacts of natural sites)
• What scales and standards are to be used in the evaluation/weighting of spatial decision processes and conflicts? (especially in relation to the environmental medium of soil and (bio) agriculture)
• Development of uniform scales for compensation actions
Furthermore, through the new delineation of new settlement areas, an effect of “double compensation“ can currently be observed, which is characterized by the urban consumption of soil on the one hand and through the compensation measures undertaken on agricultural land on the other hand. Alternative mechanisms of compensation which do not create an effect of double soil consumption should be developed.
It is also important to better understand the integrated impacts of settlement reconstruction and land recycling and close existing research deficits in these areas. Research questions of interest here are:
• How can “settlement efficiency” be defined and quantitatively improved?
• What effects does demographic change have on the delineation of new single family housing districts and how can the current reconstruction of the settlement from the 1960s and 70s (west Germany/Europe) minimize the consumption of land?
• What risks and cost factors have to be considered in the preparation of land parcels for construction and what impact do these have on the cost factors and structures for land recycling? (deconstruction cost, planning safety and approach to restrictions, for example the long-term ground water treatment)
• What impacts can be achieved through instruments of loss prevention, such as in the regulation for the reduced liability for contaminations for new investors in the new federal states and what effects could be expected from the expansion of these instruments?