Urban planning models in the context of urban expansion in an era of reurbanization, sustainability and participatory planning

该子项目考察了哪些空间和功能模型塑造了当前的城市扩张项目，以及在此过程中制定和传播了哪些社会政治和专业需求。一方面，重点在于当前模型与早期阶段模型的不同程度。在此背景下，将调查哪些城市发展创新找到了当前城市扩张项目的方式。另一方面，子项目在前人指导原则研究的基础上，结合城市规划实践对其进行深化。为此，我们将系统地分析在不同的场地条件下，城市设计元素在多大程度上被应用，它们如何与房地产和用户需求相协调，以及它们在过程中如何被修改，或者在必要时在实际实施中被抛弃。作为对城市规划理论形成的贡献，本文将展示城市规划实践中规划愿景的产生、社会讨论和实施之间的基本作用机制和联系。

The subproject examines which spatial and functional models shape current urban expansion projects and which socio-political and professional demands are formulated and propagated in the process. On the one hand, the focus is on the extent to which current models differ from those of earlier phases. In this context, it will be investigated which urban development innovations find their way into current urban expansion projects. On the other hand, the subproject builds on previous research on guiding principles and deepens it with a view to urban planning practice. For this purpose, it will be systematically analyzed to what extent urban design elements are applied at all under different site conditions, how they are reconciled with real estate and user demands, and how they are modified in the process or, if necessary, abandoned in the practical implementation. As a contribution to the formation of urban planning theory, fundamental mechanisms of action and connections between the emergence, social discussion and implementation of planning visions in urban planning practice are to be demonstrated.