6/27/2019 UAS Applications in Real Estate and Land Development Presented by: Mary B. Wohnrade, P.E., Principal Engineer Kyle B. Reeder, P.E., Project Manager/Project Visualization 1
6/27/2019 Wohnrade Civil Engineers, Inc. CORPORATE HISTORY • Established Civil Engineering Consulting Firm based in Broomfield, Colorado • Registered as a Colorado Corporation on November 4, 2002 • Specialties include: land development, municipal projects, floodplain management and water resource design. • FAA Certified UAS Operator 2
6/27/2019 WCE Firsts • An Early Adopter of UAS Technology • One of the first few UAS operators in Colorado to receive an FAA Section 333 Exemption and COA to perform commercial operations; • One of the first licensed UAS operators to receive national 3D Point Cloud of the Star Dune at the Great Sand Dunes National Park Collected and prepared by Wohnrade Civil Engineers using sUAS recognition of historic achievement for performing a precision mapping mission in a National Park; • One of the first to incorporate UAS data into civil engineering design, and now virtual reality; • One of 9 Honorees worldwide in the Inaugural 2017 Women to Watch in UAS by Drone 360 Magazine and Women and Drones; 3
6/27/2019 The WCE Standard Pioneers in the • All Services are • Use the best Use the best ASPRS Strict ASPRS Strict Available Available Development Performed In- Accuracy Accuracy Drones and Drones and Standards Standards of Precision UAS House by Cross- Sensors Sensors Mapping Trained Staff In-House Cross- In-House Cross- Licensed Licensed Trained Staff of Trained Staff of Engineers and Engineers and Engineers, Engineers, The culmination • Surveyors Surveyors Pilots and GIS Pilots and GIS Technicians Technicians of years of refinement The Best The Best Collection and Collection and UAS Aerial UAS Aerial Processing Processing Processing by Processing by Workflows Workflows Mapping Mapping OSHA trained OSHA trained Vetted by CU Vetted by CU FAA Licensed FAA Licensed Data Data Denver Staff Denver Staff Pilots Pilots Available Available 4
6/27/2019 WCE Drone Division Safely and successfully mapped thousands of acres throughout Colorado since early 2015 • The Aircraft, the Sensors, and the Processing Software all matter when preparing precision mapping • As accurate as you can get using the best available UAS technology. • A few Key Components to Successful Precision Mapping Include: • Aircraft & Flight Processing Sensor Planning & Software Selection Execution 5
6/27/2019 Fleet Diversity Multi-Rotor - Fixed-Wing - Helicopter 3D Modeling Large Areas Heavy Lift $,$$$ $$$,$$$ $$,$$$ 6
6/27/2019 Our Platforms DJI Inspire 2 Strengths • Maneuver in Tight Areas • High Winds • 3D Data Capture • Topographic mapping up to 150 acres Weaknesses • Cybersecurity Concerns • Firmware updates • Limited flight time 7
6/27/2019 Our Platforms Black Swift S1 Strengths • Maps up to 1-square mile areas • High Endurance • Corridor Mapping • Cybersecurity • Flight management system Weaknesses • Mountainous terrain • Needs Room to Maneuver and Land 8
6/27/2019 Our Platforms Altus ORC2 Strengths • Simultaneous Collection of LiDAR and Imagery • Heavy Lift Capacity • Topographic mapping • Suited for Mountainous Terrain and Highly Vegetated Areas Weaknesses • Very Expensive • Limited Endurance Very few platforms of this caliber in the U.S. 9
6/27/2019 Flight Management Systems Typical Features: • Autonomous Flight • Offline Capability • Intuitive User Interface • Save flight plans for reuse later • Collects thousands of Photos; • Cybersecurity o Datalink encryption 10
6/27/2019 Standard Applications Generated with consumer grade drones; • Very little flight planning, processing, piloting, and GIS experience required; • No surveyed ground control required. • Aerial Photography and Construction Monitoring Cut and Fill Analysis Videography 11
6/27/2019 Advanced Applications Generated using advanced sensors, professional grade platforms, and surveyed ground control. • Surveying, data collection, processing, and GIS experience required. • Products are geolocated in state or local coordinate systems. • Topographic Mapping LiDAR Mapping Virtual Reality 12
6/27/2019 Northwater Treatment Plant WCE Precision UAS Mapping Services: Services Provided from August 2018 through December 2018 Total Area of Interest= 182 acres 38 GPS Surveyed Ground Control Points 13
6/27/2019 Northwater Treatment Plant Engineering Grade Deliverables • Topographic Mapping at a 1-foot Contour Interval • Horizontal and Vertical Accuracy is at or near Survey-Grade, which is 0.1-foot horizontally and vertically • High-Resolution Orthomosaic Image w/ 1” Pixel Resolution • 3D Point Cloud with 24,027,418 Points with each Point Representing 1 square inch on the Superior Data as Ground compared to • 4k Video Traditional Ground All mapping was georeferenced and and Aerial Surveys delivered in the Ralston Coordinate System 14
6/27/2019 Superior Data Quality As Compared to Traditional Aerial and Ground Surveys 3D POINT CLOUD - UAVs vastly reduce data capture costs and appreciably increase data quality and richness - Point Cloud Contains 222,319,447 points - Provides a Compete Representation of the Ground Surface 15
6/27/2019 WCE Compatible Workflows We don’t simply collect and deliver data. • As engineers we can post-process the data and deliver it in virtually any format, and any • coordinate system. This is what sets us apart from other traditional UAS operators • 16
6/27/2019 ASPRS Standards Vertical Accuracy Vertical Absolute Accuracy Accuracy Class RMSEz NVA at 95% VVA at 95 th Non-Vegetated Confidence Level Percentile (cm) (cm) (cm) 1-cm 1.0 2.0 3 2.5-cm 2.5 4.9 7.5 5-cm 5.0 9.8 15 10-cm 10.0 19.6 30 15-cm 15.0 29.4 45 20-cm 20.0 39.2 60 33.3-cm 33.3 65.3 100 66.7-cm 66.7 130.7 200 100-cm 100.0 196.0 600 17
6/27/2019 ASPRS Standards Horizontal Accuracy Horizontal Accuracy Horizontal Accuracy at RMSEr the 95% Confidence Level Class RMSEx and (cm) (cm) RMSEy (cm) 0.63 0.9 1.5 1.25 1.8 3.1 2.50 3.5 6.1 5.00 7.1 12.2 7.50 10.6 18.4 10.00 14.1 24.5 12.50 17.7 30.6 15.00 21.2 36.7 17.50 24.7 42.8 18
6/27/2019 How Accurate is Drone Mapping? GPS SURVEYED CHECK POINT VS ORTHOMOSAIC IMAGE 19
6/27/2019 Buyer Beware Drone Operator Capability • Not All Operators are Capable of Producing Engineering-Grade UAS Mapping • Multi-million Dollar Construction Projects Demand the Best UAS Mapping Available Multi-million dollar design and construction projects demand engineering-grade UAS Mapping 20
6/27/2019 Project Visualization Combine Drone Data with Civil Engineering Design and Virtual Reality Provides Value Throughout the Project Life Cycle “ I must say, I was very impressed with your work and very pleased to find a group who really understands how GIS, survey and reality capture come together in the civil engineering field. ” Mark Kauffman Technical Lead Project Visualization 21
6/27/2019 Due Diligence & Civil Engineering Design Riverbend Estates Subdivision Benefits of using accurate 3D Data, from UAS in Due Diligence & Civil Engineering Design for Project Visualization: • Virtual Site Visits • Identify Conflicts • Avoid Obstacles • Mitigate Headaches • Save Costs to Pay for Fees 22
6/27/2019 Public Engagement & Approval Augmentation Pond – Private Landowner – Phase 1 Benefits of using accurate 3D Data, from UAS in Virtual Reality (VR) for the Public Engagement and Approval Phase of Projects: • Perception is Facilitated • Critical Feedback Emerges • Concerns Alleviated • Property Agreements & Easements Streamlined 23
6/27/2019 Client/Stakeholder Engagement Jurisdictional Dam – Private Landowner – Phase 2 Benefits of using accurate 3D Data, from UAS in Virtual Reality (VR) for the Client/Stakeholder Engagement Phase of Projects: • Sense of Place is Provided • Sense of Time is Understood • Project Vision is Embedded • Construction Approval is Accelerated 24
6/27/2019 Accurate 3D Data & the Project Lifecycle Combining Drone Data with Civil Engineering Design and Virtual Reality Provides Value Throughout the Project Life Cycle MAINTAIN ASSESS 3D, 4D, 5D & Integrated Modeling OPERATE PLAN BUILD DESIGN 25
Recommend
More recommend
