Bringing Singapore to life in 3D Dr Victor Khoo, Deputy Director Singapore Land Authority
Bringing Singapore to life in 3D ESRI Singapore UC 2016 Dr. Victor Khoo Singapore Land Authority SLA 2016 RESTRICTED
Creating Space Above and Below Industry Space Above Roads Underground Mall Jurong Rock Caverns (Source: JTC) Source: ST Singapore
Current 2D Maps Are Not Adequate Not able to fully represent the real world Low resolution and few details
Growing Needs for 3D Information Development Planning Underground Infrastructure Urban Heat Island 3D Geological Map DTM for Flood Management Solar Potential Study Underground Utilities Urban Air Flow Dynamic Telecommunication Coverage
Smart Nation Singapore is building the World's first Smart Nation by harnessing technology and gathering insights from data to the fullest with the aim of improving the lives of citizens, creating more opportunities, and building stronger communities. Measurement + Prediction = Performance
We Need 3D Map Data As-built 3-dimension Smart Data Model High Resolution Reliable Up-to-date 3D Map Data Applications National Security Urban Challenges Underground Development Climate Change Adaptation Development Planning
3D Mapping Framework Decision Making (Applications) Updating Workflow Satellite Remote Sensing GNSS Laser Scanning Imaging Geodetic Survey Capture Model Data Models Data Standards Modelling Techniques Managing Workflow Spatial Data Infrastructure Sharing Standards Web Technology Share Manage Single Point of Truth Database GIS
Theatre / World Country Installation / Region State / Province County 3D Mapping City Site Natural Asset Real Property Asset Air / Space Underground Water / Sea Land / Parcel 3D Cadastre Geospatial Information Small Scale (low detail) Facility / Built Large Scale (high detail) Building Building information System Space Overlay Structure System Space Overlay Linear Structure Sub-Systems Level Sub-Systems Level Node Components Room Components Room Source: NBIMS Segment Building Information Model
3D National Mapping Project Partners Phase 1 (Completed) Airborne Laser Scanning and Imaging (FY13 to FY15) Phase 2 (In-progress) Mobile Laser Scanning and Imaging (Expected Completion: Jun 17) FY13 FY14 FY15 FY16 Phase 1 Phase 2
Airborne Laser Scanning Optech Pegasus ALTM
Airborne Laser Scanning (Point Clouds Data) Laser Scanning Data Point Cloud Altitude of 3600ft Minimum 5 points/sq m Vertical accuracy +/- 15cm
Digital Surface Model (DSM) / Digital Terrain Model (DTM)
Leica RCD 30 Oblique Camera
Vertical and Oblique Images
Photo Map from Airborne Images Photo Map (Orthophoto)
Building Modelling using Imagery
3D Building Modelling SLA 2016
Mobile Mapping System Components IMU Inertial Measurement Unit (inside) 360 Spherical Camera - Ladybug 5 GNSS Receiver Mobile Laser Scanner Riegl VMX-450 DMI Distance Measuring Instrument 19
MMS Data Capturing
Mobile Laser Scanning Point Cloud
3D Modelling Transportation and Street Furniture
3D Map - Data and Products 3D Data Airborne Laser Scanning Data Airborne Vertical / Oblique Images 360 Camera Imagery Mobile Laser Scanning Data 3D Products 3D Building Models Digital Terrain Model & Digital Surface Model Photo Map 3D Road Models
Data Management Strategies Collect once, use by many 1. Single point of truth (SPOT) is managed and maintained in Open Source Data Format and Data Schema Embrace Open Geospatial Consortium (OGC) standard (e.g. CityGML) Ensure government data is technology-independent 2. Data standard Establish 3D data standard to ensure interoperability and support inter-agency data sharing Actively contribute and influence international 3D standard 3. Multiple source / technology
CityGML CityGML is an XML base data format CityGML captures 3D geometry, 3D topology, semantics, and appearance in 5 discrete scales (Levels of Detail, LoD) LoD0 Terrain Model Source: Thomas Kolbe LoD1 Block models with no roof structures LoD2 Explicit roof structures LoD3 Detailed architectural models LoD4 Interior modelled
Static Laser Scanner Rapidly capture very high resolution 3D data on ground level Capable of going indoor Capable of integrating color from images
3D Point Cloud State Property
Benefits to Agencies Flood Risk Map Underground Master Plan National Geological Map Slope Risk Analysis Map 3D Cadastre Coastal Protection Map Development Planning Virtual Singapore Urban Heat Island Study SolarNova Project Tree Mapping Flight Safety Planning Driverless Vehicle Development
Spin-off 3D indoor mapping to support Location Based Services (LBS) Underground mapping in 3D Augmented Reality and Virtual Reality Research Future city / smart city Clean energy Transport and mobility Simulation
Are we future-ready? Wow! It s 3D..
SLA 2015