Urban and regional infrastructures regain interdisciplinary interest in course of the ‘infrastructural turn’. Contemporary questions exceed beyond engineering and technology but reach into social, political, economic, and ecological spheres.
Therefore, the ARL:Univie International Summer School 2021 “Urban and Regional Infrastructures” invited international young researchers to Vienna to discuss the state-of-the-art of infrastructure-related research. The special issue in European Journal on Spatial Development is an outcome of the summer school. It compiles the contributions and opens up the discussion on the present role, effects and future challenges of urban and regional infrastructures to an interdisciplinary planning-oriented scientific community.