[CityGML SWG] Integration of utility networks into CityGML

[Greg Buehler]

Posted by: on 2013-09-02 06:50:14
Document Title: City Geography Markup Language (CityGML) Encoding Standard Version: 2.0
Proposal: Currently CityGML lack a rich information model for multiple and different underground structures such as gas, power, freshwater, and wastewater utility networks. Complex analyses or simulations such as collision detection (e.g. excavator vs. pipe), determination of explosion impact determination of damaged objects), and simulations predicting, for example, the spread of water in a flood scenario above and below the ground require the 3D topographic representation and description of the components of the utility network of a city. Due to the fact that the different types of infrastructure of the city lie above and in between each other the embedding into the 3D space plays an important role. Furthermore, 3D visual inspection helps in getting a better understanding of the spatial relations of the networks relative to each other. Network analyses such as the calculation of slope or slope change becomes possible. Thus, it is conceivable that a 3-
dimensional description of the city as well as a suitable 3D description of the underlying utility network has to be realized. The 3D objects of the network must be integrated into the 3D space of the city and thus they can be queried in the context of a disaster management.