Home > Services > Geodesy, Surveying, Geomatics

Do you require a geometric survey
that precisely captures the state and condition of the location?

Our survey systems ensure accurate responses to various demands:

  • Comprehensive acquisition of site conditions using a vehicle-mounted mobile laser scanner or drone lidars.
  • Detailed surveys of large buildings or artworks using static LS technology.

  • High data accuracy, density, and precision, enabling seamless integration into BIM systems with the highest Levels of Development (LODs).


Geodesy, Surveying, Geomatics

The surveying of the location’s status, coupled with project tracking, has consistently been one of GRS core services. Surveying technology has evolved over time, thanks to new equipment and the enhanced computational power of modern workstations, along with new analysis methodologies.

Advanced laser scanner equipment conducts surveys of various locations, accommodating different scales of representation to provide the Contractor with diverse levels of survey information. For many years, GRS has remained at the forefront by utilizing state-of-the-art equipment and innovative technologies, responding increasingly effectively and efficiently to the demands of the most discerning customers.

The establishment of geodetic benchmark networks involves:

  • Long-term GNSS/GPS measurements
  • Subsequent compensation through direct measurements using a total station and leveling activities, employing various reading layers based on the required accuracy.

With decades of experience in this field, we specialize in developing geodetic networks featuring both linear and angular coordinates tailored to the diverse demands of our customers.

In contemporary times, conducting surveys in motorway/airport areas at typical vehicle traffic speeds is feasible, thanks to the utilization of mobile laser scanners assisted by ground-identified support points. These support points are crucial for enhancing the accuracy of the resultant point cloud. The experience and experimentation conducted in these areas, combined with the use of high-performance, state-of-the-art equipment, enable us to gather the necessary information for our customers with minimal infrastructure occupation time. Our advanced processing methods ensure the delivery of cutting-edge products consistently meeting customer expectations.
We conduct high-precision monitoring of buildings by installing targets at focal points and subsequently reading them at set intervals. This crucial methodology is further supported by generating point cloud models, enhancing our understanding of the deformation mechanisms in buildings and structures.

Modern Unmanned Aerial Systems (UAS), equipped with optimized sensors, enable the survey of large areas with qualities comparable to low-altitude aerial photogrammetry surveys, but at significantly lower costs. Our systems utilize multi-echo technology, allowing us to gather ground information in areas with dense vegetation and develop both Digital Terrain Models (DTM) and Digital Surface Models (DSM) for the surveyed areas.

The static laser scanner accurately reconstructs the geometries of engineering works, particularly bridges and viaducts, facilitating subsequent modelling of all elements for engineering purposes. The use of different types of lasers, coupled with extensive experience in the field, enables us to create advanced models suitable for both intervention design in the executive phase and adaptation as 3D models.

The registration of civil engineering works-of-art, in an open and usable format, is now performed using BIM modelling which, based on the geometric data, makes it possible to obtain digital models of the existing representative and synthetic information on the actual situation, used to carry out projects and asset management and maintenance. Our collaboration with the main players in the BIM world allows us to respond to the demands of all our customers.



GNSS for topographic surveys

GNSS for topographic surveys

Mobile Laser Scanner

Static Laser Scanner

Drone Lidar

Provide a quotation now?



Elmas Airport
Cagliari – 2022

Surveys, monitoring of the condition of rigid and flexible pavements by measuring surface defects and the generation of the relative pavement condition index (PCI).

GORIMA Costruzioni S.p.A.

Evaluation and definition of the road superstructure thicknesses of the A1, A16 and A30 motorways

“Leonardo Da Vinci” Airport
ADR Infrastrutture S.p.A.

Advanced use of 3D GPR technology for subservice surveys, reinforced concrete slabs, buried objects in general, and stratigraphy on the Bravo taxiway and surrounding areas.




Fill in the form or call us at


A GRS specialist will contact you to address your needs.