Gebäudescharfe Schätzung des Heizwärmebedarfs anhand des semantischen 3D-Stadtmodells Wiens

This article deals with the estimation of the energy demand for residential buildings in the city of Vienna. As first step, the energy demand for space heating is computed on the basis of the guidelines issued by the Austrian Institute of Construction Engineering and starting from a CityGML-based semantic 3D city model which acts as information hub containing integrated and harmonised spatial and non-spatial data. The article describes all relevant steps implemented so far, presents the first results and discusses planned enhancements and the future steps.