Beiträge in Tagungsbänden:

K. Hagen, B. Gasienica-Wawrytko, W. Loibl, S. Pauleit, R. Stiles, T. Tötzer, H. Trimmel, M. Köstl, W. Feilmayr:
"Smart Environment for Smart Cities: Assessing Urban Fabric Types and Microclimate Responses for Improved Urban Living Conditions";
in: "PLAN IT SMART CLEVER SOLUTIONS FOR SMART CITIES; 19. internationale Konferenz zu Stadtplanung und Regionalentwicklung in der Informationsgesellschaft GeoMultimedia 2014", herausgegeben von: CORP-Kompetenzzentrum für Stadtplanung und Regionalentwicklung; Eigenverlag des Vereins CORP, Lechergasse 4, 2320 Schwechat, AT, 2014, ISBN: 978-3-9503110-7-5, Paper-Nr. 573-581, 9 S.

Urban areas are particularly vulnerable to the impacts of climate change; they are also the chosen living
environment of a significant majority of Europe`s population. Global warming increasingly influences the
urban climate and affects the future health and well-being of the urban population. The urban climate is
mainly influenced by the urban form and the open space structure, which significantly modify the regional
climatic conditions, and thereby directly affect the (thermal) comfort of the citizens. At the same time, urban
open spaces are generally becoming more important as a result of their role in helping to support sustainable
urban development from an ecological, social and economic point of view. Thus the future quality of life
within cities is highly dependant on the "smart" treatment of its open space structure.
The objective of the present study within the ACRP 3rd call was to better understand the way in which the
small scale structure of the urban fabric contributes differentially to heat island effects and other urban
climate phenomena, and to use this information to develop specific strategies for counter-acting and
mitigating these effects on a local basis. A major focus has been laid on the urban morphology and in
particular the urban landscape, and on understanding its interaction with urban microclimate. The aim was to
identify climate sensitive urban patterns - using the example of Vienna - and to suggest concrete open space
design measures to counteract the overheating effect during hot summer days. On the basis of a grid used by
Statistik Austria (quadrants of 500 m x 500 m) an urban fabric typology for the city of Vienna has been
generated taking into account aspects of urban climate and urban structure with regard to terrain, open space
and built structure, which influence the microclimatic conditions and parameters. The derived "urban fabric
types" have been analysed, characterised, and a sample of the most critical types formed the basis for further
investigation of potential open space design measures aimed at counteracting the overheating. This was
undertaken using the microclimate simulation programme ENVI-met 4.0. The evaluation of the data
generated has focused on thermal comfort and on its most relevant climate factors and has taken the form of
maps, mean values and diurnal variations. Based on the evaluation of the simulation results and with regard
to results of a previous project, a general catalogue of open space design measures has been compiled.
Representative packages of measures have been defined for each sample quadrant, highlighting their specific
conditions based on their open space patterns and climate sensitivity, and focused at obtaining the optimal
influence on thermal comfort amelioration.

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