Greening Aspang: Towards a sustainable and climate optimized new city quarter in Vienna, Austria


T he new city quarter EUROGATE I+II on the so-called Aspangründe is one of the flagship projects in the city of Vienna to demonstrate, how the use of green infrastructure as an integrated tool in the whole planning process can reduce urban heat stress.

Within the Smart Cities Initiative of the Austrian Energie- und Klimafond, different scientists from ENVI_MET, the TU Wien and the BOKU Wien come together to solve the question, if and how we can bring back nature into the urban space to improve quality of lifeand urban microclimate.

In the project, the team of ENVI_MET analysed different heat stress situations during a typical summer and the resulting thermal conditions at the close urban streets. The results of the ENVI_MET model have then been linked to the building physics model WUFI operated at the TU Wien to analyse the impact of the outdoor microclimate on the building thermal performance and energy demands.

In close collaboration with urban planners, architects and – last not least – local residents, different greening scenarios have been developed for the Aspangstraße. These scenarios have then been analysed using computer modelling to find out the best amount and location for different kinds of urban green, ranging from classical street trees over façade greening to roof top gardens.

Using only passive green strategies, the local air temperature inside the urban streets could be deceased 2 kelvin and more both during the day, and – most important for a good sleep quality – in summer nights.

The results of the project will be presented at the final symposium on the 25th of September at the TU Vienna.
  • client : Aspangründe
  • skills : Nature Based Solutions, Smart Cities, Urban Green Infrastructure
  • date : 09/03/2016
  • project url :