Surveying on a project

 
3D laser scanning study showing unstable cliffs
3D laser scanning study showing unstable cliffs
(© Leica Geosystems)
GNSS RTK data collection before the start of a road project
GNSS RTK data collection before the start of a road project
(© JF Delarue)


 

The land surveyor is involved at each stage of a project. Prior to commencement he carries out a survey of the area to be developed (the plotting stage). .Then, during the course of the project he supplies the necessary reference points for the progress of the works (setting out). After setting out,amongst other things, collected data is used for plant guidance. During the course of the works the surveyor may also contribute to the supervision (monitoring).

Finally, once the project is complete, the surveyor checks that it has been properly carried out (checking). Registered surveyors can also assist in the demarcation of the land, ie defining the perimeter of the site.

Many contractors carrying out public works employ external hire firms, particularly if specialised equipment is required. Large companies have their own in-house surveying teams who measure, set out and check each stage of the works. Even so, independent consultants will need to be involved at the completion of the project to compare the outcome with the initial objective.

 
 
 
 
 
During a project
Published on 5 April 2010