Survey control that every other measurement can trust
Establishment and densification of horizontal and vertical control, monitoring, and ground control for aerial triangulation. Talk to our team about your site, timeline and the standard your project must meet.
Why survey control extension and deformation monitoring matters
Every survey, design and monitoring programme is only as good as the control it hangs from. Well-established and densified control keeps teams, contractors and aerial mapping on the same coordinates.
This includes the establishment and densification of control (horizontal and vertical) and monitoring. We also have the experience to undertake all kinds of surveys necessary to provide geodetic and ground control for aerial triangulation.
- Horizontal control
- Vertical control
- Densification
- Deformation monitoring
- Aerial triangulation
Our process
Step 1: Reconnaissance
We review existing control and plan new stations where they are needed.
Step 2: Monumentation
New control points are built to last for the life of the project.
Step 3: Observation
GNSS and levelling observations connect the network to national datums.
Step 4: Adjustment and monitoring
The network is adjusted and, where required, re-observed to detect deformation.
Benefits of working with COGO
One coordinate system
Everyone on the project works to the same control.
Aerial mapping support
Ground control for aerial triangulation.
Movement detection
Repeat observations reveal deformation early.
“Control is the quiet foundation of every accurate map.”
Who needs this service?
- Large infrastructure programmes
- Aerial and drone mapping projects
- Dam and structure owners
What you receive
| Deliverable | What’s included |
|---|---|
| Control network | Monumented points with coordinates |
| Station descriptions | Location sketches and photos |
| Adjustment report | Accuracy and datum details |
Every assignment is quoted on its scope, location and timeline. Contact us for a free, no-obligation quote.
Can you provide ground control for drone or aerial mapping?
Do you extend control for road projects?
Ready to start your survey control extension and deformation monitoring?
Tell us about your project and we will reply with a clear scope, timeline and quote.