Survey Control & Site Grids
A consistent coordinate and level framework for the project.
Project survey control
Survey control provides the common spatial framework used by project surveys, setting out, monitoring, drone mapping and machine-control systems.
Control can be established, extended, checked or related to existing project information according to the site and required coordinate/level system.
Where this service is used
Common applications within construction, earthworks, development and survey workflows.
Construction sites
Control for setting out, progress and as-built surveys.
Drone surveys
Ground control and check observations where required by the aerial workflow.
Earthworks
Consistent spatial basis for repeat surfaces and quantities.
Machine control
Coordinate framework supporting model and machine calibration workflows.
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Typical outputs
Typical project workflow
The exact sequence is adjusted to the project brief, programme and required deliverables.
Review project framework
Confirm existing coordinates, datum, design information and control requirements.
Reconnaissance
Select stable, practical control locations with suitable visibility and access.
Observe network
Measure the control using appropriate survey methods and redundancy.
Adjust & check
Review observations, closures and consistency with the project framework.
Mark & document
Record point descriptions, coordinates and levels.
Maintain
Recheck or extend control as the site changes where required.
Survey Control & Site Grids FAQ
Why is survey control important?
Survey control gives different instruments, survey visits and project teams a common coordinate and level framework so measurements can be compared and reused consistently.
Can existing site control be checked?
Yes. Existing control can be observed and checked against the available project information before it is relied on for subsequent survey or setting-out work.
Discuss your survey control & site grids requirement.
Send the site location, drawings, specification or a short description of the work required.