Semantic enrichment of 3D city models for sustainable urban development

http://www.semcity.eu/

Sisi Zlatanova

COST Action TU0801, Berlin, 27-29 April, 2009

What is COST

“European Cooperation in Science and Technology” • • • • • One of the oldes programmes Network of scientists 2 times per year meetings 2 national representaties and almost unlimited number WG members No funding for research!

• • • • Funding for: Travel and accomodation during meetings Exchange of young researchers Schools Publication of Books

COST Action TU0801, Berlin, 27-29 April, 2009

COST Action TU0801 (until 2012)

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Create an integrative platform based on semantically enriched 3D city models,

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Use an ontology-based methodology that could be reused

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Assess the usability of the integrated platform for planning and decision-making.

Claudine Metral (Université de Genève, Département de systèmes d'information) Thomas Kolbe (Technical University Berlin)

COST Action TU0801, Berlin, 27-29 April, 2009

Semantically enrichment of 3D city models with urban knowledge

• • • • • • • • To assess the usability of enriched 3D city models, relatively to various urban issues.

To promote the creation and use of enriched 3D city models, especially for new Eastern EU members where such models can presently be hardly found.

To provide a contribution towards European standards relative to 3D city models.

To add value to current 3D city models through their ontological enrichment To provide a methodology for creating and maintaining enriched 3D city models.

To improve the consistency of high-accuracy, domain-oriented detailed models with 3D city models, and ensure their interoperability with related, existing, description frameworks or experiments.

To produce recommendations for future, funded research focused on more specific issues of urban modelling using simulation models.

To develop a network of cities interested in 3D city models, not only in Europe but also in other parts of the world.

COST Action TU0801, Berlin, 27-29 April, 2009

Expected benefits

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Improve return of investment in the 3D city models.

Improve integration of the diverse aspects of city development projects.

Improve decision processes on city management and development issues.

Improve usability of standards and models.

COST Action TU0801, Berlin, 27-29 April, 2009

Methodology

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Inventory of 3D models (CityGML, BIM etc.) Setting in prospect urban issues with 3D City models and urban ontologies Slection of existing 3D models and their use to derive urban indicators Case studies Semantic integration and interoperability Information integration and presentation Extension to European level Extention beyond Europe

COST Action TU0801, Berlin, 27-29 April, 2009

Working Groups

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WG1 – Identification and semantic analysis of issues and models (Urbano Fra) WG2 – Semantic integration and interoperability (me) WG3 – Information aggregation and presentation for decision processes (Roland Billen)

COST Action TU0801, Berlin, 27-29 April, 2009

WG 2: Semantic integration and interoperability

Chair: Sisi Zlatanova Vice Chair: Gilles Falquet Members: Balazs Hegedus, Jorge Posoda, Milena Stavric, Roland Billen, Mireille Batton-Hubert, Anne-Françoise Cutting-Decelle, Eliseo Clementini, Giovanni Rabino, Carsten Roensdorf, Mike Jackson, Claudine

Metral, Monica Sester, Lars Bodum, Thomas Kolbe, Barbara, Jaroslav Hofierka and Anna Erving COST Action TU0801, Berlin, 27-29 April, 2009

Goal

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Focus on: Integration, interconnection and interoperability issues when combining semantic information between urban 3D city models.

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Main output: recommendations for semantic information integration within 3D urban models

COST Action TU0801, Berlin, 27-29 April, 2009

Overview of the activities

Phase 1 (months 1-12): • • Critical analysis review of urban ontologies Identification of relevant case studies • Contribution to the first intermediate COST conference Phase 2 (months 13- 36): • • • • Enrichment of the case studies with the previously defined ontologies Contribution to the second intermediate conference Phase 3 (months 37-48) Synthesis and dissemination of the results of the COST Action, Finalisation of the expected outputs

COST Action TU0801, Berlin, 27-29 April, 2009

Activities Phase 1

1. Specifications for a city enrichment (above surface, on the surface, below surface) 2. Investigation of domain (theme) ontologies, information models, semantic schemes, standards 3. Investigation of 3D spatial (geometry and topology) models (research): 4. Identifying cities with 3D models and contacting them: Berlin, Rotterdam… 5. Identifying specific case studies with the cities 6. Contacts with groups: OGC, ISPRS, INSPRIRE, other projects (HUMBOLDT, ...) 7. (Organizing a training school)

COST Action TU0801, Berlin, 27-29 April, 2009

Semantic models (1)

Domain (theme) ontologies, information models, semantic schemas, standards: • • • Above ground: Towntology, Ontology Transportation Network (OTN), TransXML (Geographic Data File, Opal), CityGML, INSPIRE Themes (34 different spatial data themes), GIMODIG Design: BIM (IFC)

COST Action TU0801, Berlin, 27-29 April, 2009

Semantic models (2)

• • • • • • geological: utilities: GeoSciML, Geology Exchange Format (GEF) MultiSpeak (electricity), CIM (Common Information Model) (electricity), SDSFIE (DoD standard for facilities, infrastructure, environment, and civil works), Autodesk Topobase Electricity Model, ESRI Models (Electricity, Gas, ...), Vista (UK), IMKL (Dutch) marine: INSPIRE atmosphere: cadastre: Land Administration Model (LAM) specific ontologies for cities… etc.

COST Action TU0801, Berlin, 27-29 April, 2009

Investigation spatial models

3D spatial (geometry and topology) models (research): • Vector: 3D geometry models, 3D topology models, 3D networks, CSG, freeform surfaces • Raster: voxels, quadtree,

COST Action TU0801, Berlin, 27-29 April, 2009

Methods

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Get knowing each other Discussing the program later Discussing the methodology

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Subdivision in interest sub-groups

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Combination with STSM proposals

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Looking at similar projects and providing info from there

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Contacting other organsations Preparing an initial document by the end of october (hopefully)

COST Action TU0801, Berlin, 27-29 April, 2009

Discussion (what we want to do)

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Urban models Degree of coupling 3D Definition of a 3D city model Definition of semantic 3D city model

COST Action TU0801, Berlin, 27-29 April, 2009

Steps 1 brainstorming (in 2 months)

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Vision document (personal understanding) (all)

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Scope (models, scenarios, actors)

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Examples of tasks and queries utilizing combined information models Concepts, frameworks model to model transformation

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What do we do in the WG2?

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What makes urban model integration special?

Recommended readings (Gilles)

COST Action TU0801, Berlin, 27-29 April, 2009

Step 2: homework (in 2 months)

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Review of urban ontologies?

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Criteria to evaluate ontologies (Gilles, Sisi, Barbara)

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Cases with current 3D models (all)

COST Action TU0801, Berlin, 27-29 April, 2009