The rise of aerial drones in survey-grade mapping.
Discover the transformative impact of aerial drone surveying on traditional mapping practices, and the significance of RTK technology in delivering survey-grade accuracy from the air.
Beyond the boundary of the old workflow
For decades, high-accuracy site surveys meant boots-on-the-ground with GPS rovers, total stations, and long days walking difficult terrain. Aerial drones have not replaced that entirely — but they've reshaped where the boundary between "ground survey" and "aerial capture" sits. A modern RPA with a properly configured payload can cover hundreds of hectares in a session and deliver a dataset accurate enough to build against.
Why RTK matters
The single biggest step-change in drone mapping accuracy is Real-Time Kinematic (RTK) positioning. Where a normal GNSS receiver is accurate to metres, an RTK-corrected receiver ties every image or LiDAR return to a coordinate accurate to a few centimetres — corrected in real time against a nearby ground base station. Pair that with well-placed ground control points and you're delivering results a surveyor can defend.
Deliverables that engineers use
- Orthomosaics for measurement in GIS
- Digital surface and elevation models for design
- Contours and volumes for reports
- 3D point clouds for CAD import
More on our mapping service: Mapping & Survey.