developing 3d national data model for kingdom of bahrain
DESCRIPTION
Presented at GeoBusiness 2014 In an effort involving six key government agencies in Bahrain, Ordnance Survey International has developed a national 3D data model for the Kingdom. It enables all topographic, cadastral, hydrographic, urban planning, roads, electricity, water, telecom and oil data to be integrated in 3D. The model is based on open geospatial standards and is entirely vendor neutral. A prototype implementation proved that it was easy to connect GIS tools from six different software vendors to a central data model that implemented the data model. Following a comprehensive as-is analysis, a national standards profile utilising relevant ISO, OGC, IHO as well as aeronautical standards, together with implementation best practise, was agreed. This made use of methodologies and guidance suggested by the European INSPIRE initiative. Based on data requirements from all agencies, a comprehensive national model consisting of 136 feature classes was developed and implemented in a non-production database as a reference.TRANSCRIPT
Debbie Wilson
Senior Information Architect
28 May 2014
3D National Data Model for Kingdom of Bahrain
SLRB’s Vision
SLRB’s vision is to provide trusted high quality land information services, expertise and to be a model for Government sector
management through investing in excellence to support the future needs of The Kingdom of Bahrain.
موثوقة وخبرات خدمات تقديم هي رؤيتناوأن األراضي، معلومات في عالية جودة ذات
للمؤسسات اإلدارة في نموذجا نكونلدعم التميز في االستثمار عبر الحكومية . البحرين لمملكة المستقبلية االحتياجات
Strategic Vision
National 3D Data Model Project pre-cursor project that shall underpin key SLRB strategic projects:
Strategic Vision
National 3D Data Model Project pre-cursor project that shall underpin key SLRB strategic projects: •3D Data Capture
Strategic Vision
National 3D Data Model Project pre-cursor project that shall underpin key SLRB strategic projects: •3D Data Capture•As-Built Survey
Strategic Vision
National 3D Data Model Project pre-cursor project that shall underpin key SLRB strategic projects: •3D Data Capture•As-Built Survey•Underground Utilities
Strategic Vision
National 3D Data Model Project pre-cursor project that shall underpin key SLRB strategic projects: •3D Data Capture•As-Built Surveyr•Underground Utilities•Sand Search
National Information Infrastructure
Need for intelligent data across all information themes
Location as a key differentiator for: • Data sharing across government • Better government services • Economic growth
Public – Private Initiative
SLRB lead the development of the National 3D Data Model with collaboration from Public and Private Sector stakeholders
What is 3D?
Features with geometries containing 3 coordinate dimensions (latitude, longitude, elevation)
What is 3D?
Features with 2D or 3D coordinate geometries that can be extruded based on height/depth property
What is 3D?
Objects represented using multi-surface/solid geometries or implicit geometries/3D symbols
What is 3D?
Objects built up from other 3D features
Objectives
• Develop a 3D National Data Model at all levels of detail encompassing themes relating to requirements of all stakeholders:– Topographic Mapping– Land Administration– Hydrographic Survey– Utilities – Infrastructure– Local Governance and Spatial Planning– Agriculture, Aquaculture and Environment
• Develop a CityGML Application Domain Extension (ADE) for Bahrain
Modelling Approach
• Open Standards• Re-use and extend
18 themes (236 feature classes)
Supports 2D
Supports 3D (LOD 0 – LOD 3)
Modelling Approach
Harmonisation between domains:
Example: FeederPillar, PowerBox, SignalController
Cabinet
Modelling Approach
• Achieving harmonisation = lots of stakeholder engagement
Bahrain CityGML ADE
• Contains extensions to:– CityGML Core: support identify & lifecycle management– Buildings: to include sub-divisions such as building units,
floors/stories– Land Administration: added Strata Parcel feature for vertical land
parcels– Other themes – extended to add additional properties and
defined Bahrain specific code lists
• Utilities – there is an existing draft CityGML ADE but needs evaluating to see if applicable
Prototyping the 3D Data Model
S-57 ESRI
Prototyping the 3D Data Model
Bentley Map
Prototyping the 3D Data Model
Google Earth
Prototyping the 3D Data Model
CityGML
Prototyping the 3D Data Model
3D PDF
• Consistent framework enabling different domains to come together to develop a harmonised data model
• Provides a long-term foundation for data maintenance and exchange• Platform independent allowing implementation using wide range of
technologies
• SLRB and stakeholders can now start harnessing the power of their data to deliver new innovative services
Power of Open Standards
• Comprehensive 3D National Data Model developed within 6 months• Prototyping team implemented model for all 236 features in Oracle database
and migrated data within 2 months• SLRB team developed the series of demos using key stakeholder
applications within 3 days
With grateful acknowledgement toH.E. Shaikh Salman bin Abdullah Al Khalifa
The President, Survey & Land & Registration Bureau,Kingdom of Bahrain, Mr. Naji Sabt Salim Sabt,
Director General of Survey and Mr. Waheed Hadi, Director of Topographic Survey
http://www.ordnancesurvey.co.uk/international/
