Reliable Positioning and Survey Control
GNSS positioning, control networks, coordinate determination and transformation support.
01Overview
Geodetic surveying establishes and relates positions within an appropriate coordinate reference framework. Global Navigation Satellite System (GNSS) technology supports positioning, control surveys and geographic data acquisition.
Every reliable survey depends on reliable control. When positions are properly tied to a documented reference framework, data from different surveys, teams and periods can be combined with confidence. DASFADS establishes, densifies and verifies control so that downstream mapping, engineering and cadastral work rests on a sound foundation.
02Service scope
- GNSS-based positioning and field observations
- Survey control establishment and densification
- Coordinate determination and transformation support
- Control-network observations
- Traverse and control-data processing
- Coordinate verification and documentation
- Integration of survey observations with mapping workflows
03Applications
- Cadastral surveys
- Engineering projects
- Mapping
- Infrastructure development
- Geospatial database creation
04Potential deliverables
- Control coordinates
- Observation and processing records
- Station descriptions
- Transformation documentation
- Verification reports
Deliverables reflect the agreed accuracy, reference datum and coordinate system.
05What to provide
Sharing this information with your request helps us scope the work accurately and respond faster.
- Project location and extent
- Required accuracy and intended use of the coordinates
- Reference datum and coordinate system, where specified
- Details of any existing control points
- Site access and observation constraints
Our approach
The required accuracy, reference datum, coordinate system, observation method, site conditions and processing approach are defined for each assignment. Coordinate transformations use appropriate parameters and reference systems, and assumptions are documented.
06Technical considerations
Before you commission this service
Achievable accuracy depends on equipment, observation time, satellite visibility, site obstructions and the quality of reference control. Transformation results are only as reliable as the parameters used, which is why we record them alongside the results.
07Common questions
Why does the reference datum matter?
Coordinates only have meaning within a stated reference framework. Mixing data from different datums without proper transformation can introduce significant positional errors.
Can you check coordinates supplied by others?
Yes. Coordinate verification is part of our service scope. We observe and compare against the supplied values and document the results.
Often commissioned together
Engineering Surveying
Setting-out, levels, alignments, control and verification survey support for construction works.
Explore serviceLand & Cadastral Surveying
Boundary surveys, land measurement, parcel definition and survey documentation for transactions and development.
Explore serviceGIS & Geospatial Mapping
Spatial data capture, GIS databases, analysis and map production for location-based decisions.
Explore serviceReady to discuss geodetic surveying & GNSS?
Share your site location, objectives and any existing documents. Our team will review your requirements and advise on scope, deliverables and timing.