Citygml and the Streets of New York -
A Proposal for Detailed Street Space Modelling

Beil, Christof; Kolbe, Thomas H.

doi:10.5194/isprs-annals-iv-4-w5-9-2017

Cited by 31 publications

(48 citation statements)

References 7 publications

(5 reference statements)

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“…In addition, the new class Marking allows for adding road markings to the road surface and the classes Hole and HoleSurface can be used to represent, for instance, roadway damages or manholes including their surfaces. For further information and examples on the new Transportation module please refer to Beil and Kolbe (2017).…”

Section: Transportation Modulementioning

confidence: 99%

CityGML 3.0: New Functions Open Up New Applications

Kutzner

Chaturvedi

Kolbe

2020

PFG

106

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The development of the next major version 3.0 of the international OGC standard CityGML is nearing its end. CityGML 3.0 will come up with a variety of new features and revisions of existing modules that will increase the usability of CityGML for more user groups and areas of application. This includes a new space concept, a revised level-of-detail (LOD) concept, the representation of time-dependent properties, the possibility to manage multiple versions of cities, the representation of city objects by point clouds, an improved modelling of constructions, the representation of building units and storeys, an improved representation of traffic infrastructure as well as a clear separation of the conceptual model and the data encodings that allow for providing further encoding specifications besides GML. This paper gives an overview of these new and revised concepts, and illustrates their application through selected use cases. KeywordsCityGML 3.0 · 3D city models · Space concept Zusammenfassung CityGML 3.0: Neue Funktionen eröffnen neue Anwendungen. Die Entwicklung der nächsten Hauptversion 3.0 des internationalen OGC-Standards CityGML nähert sich dem Ende. CityGML 3.0 wird mit einer Vielzahl an neuen Funktionen und der Überarbeitung bestehender Module aufwarten, die die Benutzerfreundlichkeit von CityGML für weitere Benutzergruppen und Anwendungsbereiche verbessern. Dazu gehören ein neues Space-Konzept, ein überarbeitetes Level-of-Detail (LOD)-Konzept, die Darstellung von zeitabhängigen Eigenschaften, die Möglichkeit, mehrere Versionen von Stadtmodellen gleichzeitig zu verwalten, die Darstellung von Stadtobjekten durch Punktwolken, eine verbesserte Modellierung von sonstigen Bauwerken, die Darstellung von Gebäudeeinheiten und Etagen, eine verbesserte Darstellung der Verkehrsinfrastruktur sowie eine klare Trennung des konzeptuellen Modells von der Datenhaltung, die es erlaubt, neben GML weitere Datenformate bereitzustellen. Dieser Artikel gibt einen Überblick über die neuen und überarbeiteten Konzepte und veranschaulicht ihre Anwendung anhand ausgewählter Beispiele.

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Section: Transportation Modulementioning

confidence: 99%

CityGML 3.0: New Functions Open Up New Applications

Kutzner

Chaturvedi

Kolbe

2020

PFG

106

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“…Two specifications that are relevant for this paper are CityGML [18], which defines a model for 3D city models, and LandInfra/InfraGML [19][20][21], which defines models for land and civil engineering infrastructure facilities, including road infrastructure. A model for detailed modelling of streets by extending CityGML is described in [49].…”

Section: Citygml and Landinfra/infragmlmentioning

confidence: 99%

Information Exchange between GIS and Geospatial ITS Databases Based on a Generic Model

Jetlund

Onstein

Huang

2019

IJGI

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This study aims to improve interoperability between Geographic Information Systems (GIS) and geospatial databases for Intelligent Transport Systems (ITS). Road authorities maintain authoritative information for legal and safe navigation in GIS databases. This information needs to be shared with ITS databases for route planning and navigation, and for use in combination with local knowledge from vehicle sensors. Current solutions for modelling and exchanging geospatial information in the domains of GIS and ITS have been studied and evaluated. Limitations have been pointed out related to usability in the GIS domain and flexibility for representing an evolving real world. A prototype for an improved information exchange model has been developed, based on ISO/TC 211 standards, Model Driven Architecture (MDA), and concepts from the studied solutions. The prototype contains generic models for feature catalogues and features, with implementation schemas in the Geography Markup Language (GML). Results from a case study indicated that the models could be implemented with feature catalogues from the ITS standard ISO 14825 Geographic Data Files (GDF) and the INSPIRE Transport Networks specification. The prototype can be a candidate solution for improved information exchange from GIS databases to ITS databases that are based on the Navigation Data Standard. maintain geospatial information representing the road network, regulations, events, conditions, and road equipment, often in applications and databases from the domain of Geographic Information Systems (GIS). Furthermore, road authorities may have geospatial information for rural areas where fewer vehicles have travelled, as well as Building Information Models (BIM) with geospatial information representing new roads before the roads are opened. Meanwhile, mapping authorities, of course, maintain base maps of roads and the surrounding environment in GIS databases.The research question in this study is how to improve existing methods for exchange of geospatial information from road and mapping authorities' GIS databases to geospatial ITS databases, illustrated by the three right-headed horizontal arrows in Figure 1. Materials and Methods Research DesignThe research described in this paper was based on five steps, illustrated in Figure 3. The state of the art of solutions for information modelling and exchange, in and between the domains of GIS and ITS, was studied and evaluated in step one and two. A prototype for an improved information exchange model was developed in step three. Schema files for implementing the prototype in the GML format were derived from the UML models in step four, following the conversion rules from ISO 19136 [16] and by using the conversion software ShapeChange [26]. Finally, the model was tested and demonstrated in a case study with different feature catalogues in step five.

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“…The CityGML LOD concept is well defined for buildings, bridges, tunnels, and to some extent for roads (Beil et al, 2017;Labetski et al, 2018). However, there is no clear definition of LODs for terrain/relief, vegetation, land use, water bodies, and generic city objects in CityGML Benner et al, 2013;Kumar et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

An Improved Lod Framework for the Terrains in 3d City Models

Kumar

Labetski

Ledoux

et al. 2019

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci.

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<p><strong>Abstract.</strong> The Level of Detail (LOD) concept in CityGML 2.0 is meant to differentiate the multiple representations of semantic 3D city models. Despite the popularity and general acceptance of the concept by the practitioners and stakeholders in 3D city modelling, there are still some limitations. While the CityGML LOD concept is well defined for buildings, bridges, tunnels, and to some extent for roads, there is no clear definition of LODs for terrain/relief, vegetation, land use, water bodies, and generic city objects in CityGML. In addition, extensive research has been done to refine the LOD concept of CityGML for buildings but little is known on requirements and possibilities to model city object types as terrain at different LODs. To address this gap, we focus in this paper on the terrain of a 3D city model and propose a framework for modelling terrains at different LODs in CityGML. As a proof of concept of our framework, we implemented a software prototype to generate terrain models with other city features integrated (e.g. buildings) at different LODs in CityGML.</p>

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Citygml and the Streets of New York - A Proposal for Detailed Street Space Modelling

Cited by 31 publications

References 7 publications

CityGML 3.0: New Functions Open Up New Applications

CityGML 3.0: New Functions Open Up New Applications

Information Exchange between GIS and Geospatial ITS Databases Based on a Generic Model

An Improved Lod Framework for the Terrains in 3d City Models

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