| A GPS Topographical Survey is a survey that | | | | To achieve these objectives, surveyors will use |
| depicts the topography or shape of the ground. | | | | elements such as trigonometry, physics, |
| This ground is a specified parcel of land which will | | | | geometry, engineering, mathematics and law. |
| include all manmade and natural features. | | | | Topographical survey is just one type of survey. |
| The detail and height information that is recorded | | | | Other types of survey include: |
| usually varies on the client's specification and | | | | · Deformation survey - used to determine if an |
| requirements. Height information varies normally | | | | object or structure is moving. |
| from about five metre to twenty metre intervals, | | | | · Archaeological survey - assesses the |
| and this will depend upon the scale of the final | | | | relationship of archaeological sites. |
| output. | | | | · Boundary survey - to establish the boundaries |
| To enable topographical surveys to be carried out, | | | | of a parcel of land. |
| specialist equipment needs to be employed, and | | | | · Engineering survey |
| surveyors commonly make use of electronic laser | | | | · Mortgage or physical survey - delineates land |
| stations. These laser stations can vary in accuracy | | | | boundaries and building locations. |
| from two to five seconds for standard | | | | · Soil survey - also known as soil mapping, |
| topographic surveys. | | | | determines soil types and other properties of the |
| By using GPS (Global Positioning Systems) instant | | | | soil cover over a landscape. |
| access to National Grid co-ordinates is available. | | | | · Topographic survey - measures the elevation |
| Distos, digital levels and laptop computers are | | | | of points on a particular piece of land, and |
| additional and standard pieces of equipment, that | | | | presents them as contour lines on a plot. |
| allow engineers to effectively co-operate at any | | | | · Foundation survey - collects positional data on a |
| location in Ireland and the United Kingdom, by | | | | foundation which has been poured and cured. This |
| relaying digital transmission of data to the | | | | survey is carried out to ensure the foundation |
| surveyors headquarters. | | | | was constructed in the location and elevation |
| The surveying of land is the process of | | | | authorized in the plot plan. |
| accurately determining a terrestrial or three | | | | GPS or the Global Positioning System is a United |
| dimensional space position of points and the angles | | | | States space based global navigation satellite |
| and distances between them. These points are | | | | system, and provides positioning, navigation and |
| often used to create land maps and are usually | | | | timing to worldwide users. |
| on the surface of the earth. | | | | |