Drones: A Standard Tool in Modern Construction
In the construction sector, drones have evolved from novelty to everyday working tool. Project owners, surveyors, site managers and architects integrate them into their workflows to gain accuracy, responsiveness and safety.
Construction Progress Monitoring
Regular fly-overs — weekly or monthly depending on the project — enable:
- Documentation of actual site status at precise dates
- Comparison of real progress against plans and schedules
- Early detection of deviations before they become costly
- Automated photographic reports for clients and insurers
Images are georeferenced, enabling precise measurements and superimposed temporal comparisons.
Volume and Stockpile Calculation
Volume calculation for earth, aggregates, spoil or backfill is one of the most profitable drone applications in earthworks. A 30-minute flight over a multi-hectare site produces a 3D model accurate to 1–2% of the actual volume.
Compared to traditional methods (RTK GPS, optical level), drones are 5 to 10 times faster for equivalent results. For quarries and open-cast mines, the economic benefit is immediate.
Topographic Surveys Before Works Begin
Before construction starts, drone topographic surveys produce:
- The site topographic plan (contour lines, altimetry)
- Area orthophoto
- Digital Terrain Model (DTM)
This data feeds directly into CAD/BIM software (AutoCAD Civil 3D, MicroStation, Revit) and serves as the basis for implantation studies.
BIM Integration
Point clouds and 3D models from drones import into BIM models (Revit, ArchiCAD). This integration enables:
- Clash detection between existing conditions and the proposed design
- Compliance monitoring against the digital model
- Continuous update of the building digital twin
Structural Inspection During Construction
Drones inspect facades during construction, metal structures, timber frame assemblies and roofing areas without scaffolding or platforms. They detect defects and non-conformities before rendering or finishing phases.
Return on Investment
A drone topographic survey that saves a week of surveyor work pays for itself in a single intervention. On a 12-month construction monitoring contract, early detection of an earthworks deviation more than offsets the total service cost.