IDBECommon conceptual framework and roadmap of collaboration in

Spatial Standards for the Digital Built Environment

GeoBIM: 3D GIS in China

Mei Xue: “In my opinion, what matters most in the integration with BIM data is the semantic divergence and difference rather than the accuracy of data.Interoperability is the keyword of GIS-BIM integration for which cross-functional knowledge, experience and communication are crucial.”

https://www.gim-international.com/content/article/3d-gis-in-china-2

Future City Pilot (FCP), Phase 1• OGC in collaboration with bSI• Accelerate standards process, requirements based• 6/8 months project• Pilot interoperability arrangements in Geo and BIM

• Quid IFC and CityGML?

• House rules:• Pre-market conditions• Non competitive• Non operational environment• Research

• In an interoperable environment using Open Standards

Scenario’s• Static 3D city models are ‘easy’ to make

• Maintaining a city model is harder• Need for validation of new components of the model

• Model validation (e.g urban planning rules)• Connection with temporal data (e.g TimeSeriesML)

• Parts of a city planning tools

• Dynamic data to be linked to 3D models• Flooding, solar potential / irradiation …• Sensors, IoT (e.g SensorThings)

Graphics: IGN France

Scenario’s

• Integration of city information with Dynamic model• Goal: reduce winter death (urban services)• Building humidity is related to illness • Integrate sensor readings with city model

• Using CityGML and Sensor Web Enablement : “Dynamizer” Graphics: Greenwich and OSGB

Use case: Urban Planning and combined use of 3D urban data (BIM + Geo)• Evaluation of BIM project in CityModel• Assessing Urban planning Rules for validation• Inputs

• BIM IFC project• CityModel: CityGML (according to French IGN REF3DNAT profile LOD1/2/3• IGN National Reference data: Parcels, Roads, …

• Outputs• BIM project converted in CityGML

• Rennes Metropole / Bruz: provision of CityGML model from IGN Airborne imagery

• Use case contractor: University Of Melbourne

IFC to CityGML

• creates CityGML objects and assigns the information from corresponding ifc model elements• creates the Building feature based on information from IfcBuilding element• extracts the geometry of the room from IfcSpace element• extracts the geometry of the room from IfcSlab element• extracts the geometry of the roof from IfcRoof element• creates the exterior MultiSurface boundary geometry of the building from the IfcWall element and tests for openings (will

not include windows and doors, slabs)• tests if the openings are Windows or Doors type. Will not include them in the boundarySurface and creates the window

and door CityGML objects• tests for the existence of Roof/surface. Will not include them in boundarySurface and will create the roofSurface object• adds floorSurface from IfcSlab to the boundary of the project• creates Door object from IfcDoor• creates FloorSurface from IfcSlab• creates RoofSurface as a MultiSurface BoundarySurface• creates Window from IfcWindow and adds attributes

Scenario 2• Building Humidity in Social Housing

– Relate sensor readings with a City Model– Dynamize

• Dynamizers– Integrating Sensors with Semantic 3D City Models(Greenwich – London, Technische Universität Mûnchen)

Open Geospatial Consortium FCP1 video https://www.youtube.com/watch?v=aSQFIPwf2oM

OGC Boulder workshop: June 2015

We have been discussing geospatial/BIM integration over the years• OWS4: IFC web services and building data• CEN Paris 2010ish • Boulder 3D summit 2011 • Seoul 2012• Barcelona 2015 – ISO/TC59 update

We discussed indoor• IndoorGML• CityGML CRs and v3.0 development• CityGML/Indoor/LandInfra ad hocs

Space

Natural Asset

Linear Structure

Structure

BuildingFacility / Built

World

Sub-SystemsSystem

Level

Site

Real Property Asset

Country

State / Province

County

Region

Node

Segment

Room

Space

System

Level

Sub-Systems

Room

Water / Sea

Land / Parcel

Underground

Air / Space

Overlay

Overlay

Components

Components

City

Traditional CAD/BIM

Traditional GIS

CONTINUUM OF SCALES

Continuum of scales

Image: T. Kolbe, 2007

CityGML – data model for city data integration and 3D

An Observation PostA Vertical Obstruction

A Navigation Beacon

What is this?

Shared understanding

Kindly offered by Mark McInerneyAssistant Director, Defence Spatial Standards Office, DIGO, Australia

Integrated Digital Built Environment

White paper headlines

• Ensure that for domains in which OGC and bSI standards overlap (have touch points) that the conceptual models are identical

• Thereby to ensure that data can be seamlessly translated from an OGC standard to a bSI standard and vice versa

• Thereby offering the users trust and continuity of data between geospatial and construction domain

Three levels of coordination

1. Management (to meet 3 times p.a.). Include responsibility to develop business /operating models to suite joint initiatives.

2. Planning (to meet 4 times p.a.) To be between the Principal leads of OGC and the Infrastructure Room Steering Committee of bSI with liaison with the Management level.

3. Development (to meet 3/4 times p.a.) To be effected by working groups as appropriate under the guidance/ direction of the Planning level.

Real world Virtual model

Social/Experience

Evolving application areas

Energy

Emergencies and

Resilience

EnvironmentTransport

Built Environment

Scenario planning (example policy modelling – big data)

Simulation (example 5G planning and asset utilisation)

Supply-Demand optimisation(example: reduce congestion)

Evolving need for built environment data

Geospatial / BIM

BUILDING/INFRASTRUCTURE LIFECYCLE

Use of Geo und BIM technologies:

Courtesy of Bart de Lathouwer, © 2015 Open Geospatial Consortium

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Copyright © 2015 Open Geospatial Consortium

From command and control to

Connect and collaborate

We’ll achieve- empowerment/engagement- integration/interoperability- cost savings/efficiencies- Better/safer environment

The Integrated Digital Built Environment

PIM

Environment

Modelling

Built AssetModelling

• data capture• regional analysis• scenario modelling• forecasting

Understanding & Managing the Natural & Built Environment

Planning, Design, Construction & Operation of Built Assets

Geospatial Modelling(OGC: GML schema / W3C: RDF triples)

Digital Engineering(bSI: IFC schema, MVD & bSDD)

provides contextreturns as-built data• design modelling

• performance analysis• simulation• construction

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HOW TO BUILD A DATA PLATFORM FOR THE BUILT ENVIRONMENT

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