Detail and Contour Surveys
Detail Surveys, also known as Topographic Surveys, show the levels, contours and features of a site.
We provide detail surveys of sites ranging from house blocks to entire developments.
DETAIL AND CONTOUR SURVEYS
Detail Surveys, also known as Topographic Surveys, show the levels, contours and features of a site. Compass Consulting Surveyors provide detail surveys of sites ranging from house blocks to entire developments.
Detail Surveys are used to design construction works on the subject land, so constitute the basis for any future works on the site. It is common practice to connect a detail or topographic survey to state-based control marks which provide grid north orientation from the Map Grid of Australia (MGA2020) coordinate system, and heights relative to the Australian Height Datum (AHD).
The advantage of adopting the state-based control marks is that the survey can then relate to Council flood planning levels and that proper shadow diagram calculations can take place for proposed structures. In addition, surveys connected to state-based control marks are able to be re-established from permanent control marks in situations where the local control marks are destroyed or disturbed during construction works.
Compass Consulting Surveyors use a combination of one-man robotic total station and RTK GNSS for most detail surveys. This system can allow field crews to cover large areas in a reduced time. For very large sites, the measuring equipment can be mounted on a vehicle such as a quad bike or four-wheel drive, with readings taken automatically at set distances. Our emphasis when preparing a detail or topographic survey is on the quality of data combined with maximum efficiency.
The results of the detail survey are manipulated using modern software. A three-dimensional digital terrain model is created, and contours are generated from this model. The model can be directly imported into design software to facilitate the digital design of new structures or other works. A three-dimensional view allows the digital terrain model to be viewed and checked prior to being released in a plan.