DGPS / Total Station / GPR Survey
Engineering-grade ground survey, control, and underground utility detection.
MapSphere provides high-precision ground survey using DGPS, RTK GNSS, total station, and GPR for positioning, control establishment, engineering layout, and underground utility detection.
Our field teams establish reliable control and capture survey-grade measurements for topographic, route, rail, cadastral, alignment, tunnel, and bridge projects.
Where it’s used
What we bring to site
DGPS — SP85 / Trimble R980
Survey-grade RTK positioning and control-point establishment.
Total Station
Precise engineering layout, topographic, and alignment survey.
GPR — Ground Penetrating Radar
Underground utility detection and subsurface investigation.
Scope of work
- DGPS & RTK survey
- Total Station survey
- GPR utility detection
- Control point establishment
- Topographic & route survey
- Road, rail & cadastral survey
- Transmission line & alignment survey
- Tunnel, bridge & leveling survey
What you receive
- Control points
- Coordinate datasets
- Survey reports
- CAD drawings
- Alignment drawings
- Topographic maps
- Utility detection maps
Sample outputs
How we deliver it
Project scope
Understand the site, objective, deliverables, timeline, and accuracy needs.
Control planning
Agree the datum and grid, and plan where control is established and checked.
Field measurement
Establish control, then capture topographic, route and alignment detail — and locate buried services where GPR is in scope.
Quality validation
Validate accuracy, closure, coordinate system, completeness, and standards.
Delivery
Issued on your chosen datum.
What we need from you
Send these details with your inquiry and we can scope the work without a round of questions first.
How the work is controlled
Standards referenced
- ASPRS Positional Accuracy
- RICS Survey Standards
Accuracy
Achievable accuracy depends on the equipment and configuration used, ground control, terrain and site conditions, and the processing and validation applied. We confirm an achievable figure when scoping.
Related services
Common questions about DGPS / Total Station / GPR
Still have a question about your site or project?
Talk to our teamWhen do you use DGPS versus total station?
Most projects use both: DGPS/RTK GNSS for open-sky control and topographic survey, total station for precise layout, setting-out, and areas with poor satellite visibility.
What can GPR detect underground?
Ground-penetrating radar locates buried utilities, pipes, cables, voids, and reinforcement non-destructively, supporting utility mapping and safe excavation planning.
Do you establish project control?
Yes — we establish and verify primary and secondary control points on your chosen datum, providing the survey-grade framework that ties every downstream deliverable together.
Scope your ground survey
Tell us the site, the datum you work to and what has to be located or set out — we'll come back with method, accuracy, and timeline.