Semantic Modelling of 3D Multi-Utility Networks for Urban Analyses and Simulations

Abstract

Current data models for representing, exchanging, and storing utility networks often meet the needs of specific domains only, i.e. they do not consider the integration of different network systems, mutual relations between networks and the embedding into 3D urban space. These important prerequisites for urban analyses and simulations are met by the CityGML extension Utility Network ADE. Originally developed for disaster management, this article presents the further development of the ADE by new and revised concepts that result from an extensive analysis of relevant use cases. A catalogue of requirements is presented, current data models are evaluated against these requirements, and the recent developments and refinements of the ADE are explained in detail. This includes the concepts of inter-feature links and network links, the linking of network components with city objects, the modelling of functional characteristics, a refined network components module, and a new electricity network package. In addition, an overview of projects that successfully have applied the ADE is provided.

Semantic 3D City Modeling and BIM

“…This is realized by the three main parts: (1) the core thematic model with well-defined LoDs, classes, spatial and thematic attributes, and relations; (2) Gener-icCityObjects and generic attributes allow the extension of CityGML data on the fly; and (3) ADEs facilitate the systematic extension of the CityGML data model by new classes, attributes, and relations for specific application domains. Many ADEs have already been developed by different communities; for example, the Energy ADE (Nouvel et al 2015) to support energetic analyses of buildings or the Utility Network ADE (Kutzner et al 2018) supporting the simultaneous representation and analysis of multiple supply and disposal networks. A comprehensive discussion of existing CityGML ADEs is provided by Biljecki et al (2018).…”

I-Urban Revitalization: Conceptual Modeling, Implementation, and Visualization Towards Sustainable Urban Planning Using Citygml

“…According to a literature review by Biljecki et al (2018), 44 ADEs currently exist that support not only different applications, such as the Utility Network ADE for representing multi-utility networks (Kutzner et al, 2018) and the Energy ADE for urban energy modelling (Nouvel et al, 2015), but also applicationindependent tasks, such as the IMGeo ADE that harmonizes CityGML with the Dutch National Spatial Data Infrastructure (Van den Brink et al, 2013). However, the literature review also shows that no ADEs exist to date that support sustainable urban development as intended by the municipalities in Japan.…”

Digital Modelling of Underground Volumes, Including the Visualization of Confidence Levels for the Positioning of Subsurface Objects

“…Olde Scholtenhuis et al [19] propose adding a fuzzy utility zone to the utility network application domain extension (ADE) [20]. This zone integrates precision information to the positioning of objects.…”