Fig. 1From: CityGML Application Domain Extension (ADE): overview of developmentsExcerpt of the UML diagram of the Noise ADE, depicting the augmentation of CityGML Building with noise related attributes not standardly available in CityGML. The prefix noise indicates attributes and objects that are associated with the Noise ADE. Source: OGC CityGML 2.0 standard [1]Back to article page