TOPOGRAPHICAL SURVEYS
WHAT IS A TOPOGRAPHICAL SURVEY?
A Topographical Survey is the set of all the measurements carried out on a terrain, using appropriate methods and instruments. These measurements allow us to represent the terrain in graphic form.
The simplest and most “general” measurements can also be carried out with a metric wheel, but generally for more accurate measurements it is necessary to use much more sophisticated instruments capable of measuring angles and distances with great precision, such as Total Stations and Automatic Electro-optical Laser Distance Meters, commonly called “Distomat”.
WHAT IS A TOPOGRAPHICAL SURVEY FOR?
There are many different reasons why a Topographical Survey may be required, but at the basis of all of them there is always the need to acquire measurements of the territory that are as accurate and complete as possible.
For example, a Topographical Survey is absolutely necessary when we have to construct or extend a building or even build a road, and we need to understand how the terrain on which we are working is made.
A precise Topographical Survey will be even more useful if we need to update Land Registry Maps (measurements made for this purpose are called Precision Surveys).
Accurate Topographical Surveys are also used for “land division” operations, i.e. when we need to draw the boundary lines between different lots on the ground, but also the exact position and dimensions of a new building to be constructed or an extension to an existing building.