Roads, bridges & public works
Infrastructure
Infrastructure decisions are spatial decisions. SEC gives roads, bridges, utilities and public works a measured picture of existing conditions — and keeps design, construction and handover on one survey framework.
Sector challenges
Where infrastructure projects lose ground
Designing on outdated conditions
Alignments and levels based on old or incomplete mapping surface as clashes and rework during construction.
Corridors through the existing city
New routes crossing live roads, drains and buried networks that must be located before they are cut.
Foundations without ground truth
Structures designed before soils are understood carry cost and schedule risk into every later stage.
Handover without records
Assets entering operation without as-built documentation become the next project's unknown conditions.
Project lifecycle
Feasibility to as-built, on one framework
01
Survey control
Primary and secondary control established for the scheme, tied to network GNSS.
- CORS Network & RTK Services
- Control Networks & Benchmarks
02
Existing-condition mapping
Topographic survey of corridors, junctions and structures as the design basis.
- Surveying & Geomatics
- Topographic Survey
03
UAV & LiDAR mapping
Wide-area and corridor capture for planning, earthworks quantities and progress baselines.
04
Subsurface detection
Underground service survey before excavation and utility diversion design.
05
Geotechnical data
Investigation and testing for pavements, structures and earthworks design.
06
GIS for the scheme
Existing conditions, utilities and design data unified in queryable spatial layers.
07
Construction survey
Setting-out, level control and verification through execution.
- Construction Survey
- Engineering Survey
08
Reality capture & as-built
Scanning and as-built survey documenting the finished works for operation and maintenance.
Technology approach
Decisions first, instruments second
One datum for every party
Designers, contractors and supervision working from the same control and the same terrain model.
Quantities from measured surfaces
Earthworks and progress volumes computed from captured surfaces, not estimated from drawings.
Data that outlives the project
Structured GIS handover turns construction records into an operations asset.
Field equipment
CHCNAV
CHCNAV i83 GNSS
A multi-constellation GNSS receiver used for field survey work referenced to the project frame.
Leica Geosystems
Leica FlexLine TS07
A total station of the type used on engineering and construction survey scopes.
Leica Geosystems
Leica DNA03 Digital Level
A digital level of the type used on vertical control and repeat height scopes.
What you receive
Deliverables that decide
- Control network documentation
- Topographic and existing-condition plans
- Terrain models and earthworks quantities
- Composite utility plans and diversion inputs
- Geotechnical reports
- Scheme GIS layers and web maps
- As-built plans and 3D documentation
Give your scheme a measured starting point.
Share the scheme stage and footprint — SEC will propose the survey, subsurface and data scope for the next stage of the scheme.