Surveying or land surveying is the technique, profession, and science of determining the terrestrial or three-dimensional positions of points and the distances and angles between them. A land surveying professional is called a land surveyor. These points are usually on the surface of the Earth, and they are often used to establish maps and boundaries for ownership, locations, such as building corners or the surface location of subsurface features, or other purposes required by government or civil law, such as property sales.
Surveyors work with elements of geometry, trigonometry, regression analysis, physics, engineering, metrology, programming languages, and the law. They use equipment, such as total stations, robotic total stations, GPS receivers, retro reflectors, 3D scanners, radios, handheld tablets, digital levels, subsurface locators, drones, GIS, and surveying software.
Surveying has been an element in the development of the human environment since the beginning of recorded history. The planning and execution of most forms of construction require it. It is also used in transport, communications, mapping, and the definition of legal boundaries for land ownership. It is an important tool for research in many other scientific disciplines.
Sai Propmart can provide a number of survey services including topographical surveys, boundary definitions, plans including survey plans/drawings and site set-out. Sai Propmart 's survey team works with the latest in technology including survey computer software and GPS systems, so that we can offer a range of services from general survey advice to the electronic drawing of plans.
After being provided with a current legal description of the subject property, a professional land surveyor reviews title information as well as deed information of adjoining properties. A thorough effort is made to recover monuments in the field, oftentimes including public land monuments (e.g. "section corners", "quarter corners") not necessarily adjacent to the subject property. Precise field measurements are made, field data calculated, and property corner positions determined by careful analysis. Frequently, legal descriptions of the subject and adjacent properties are in conflict with field measurements. The professional land surveyor documents these conflicts and prepares a detailed plat of the property boundary, setting the necessary property corner monuments in the field. If the land surveyor has been provided with the appropriate title information, the land survey plat will also show the position of easements, rights-of-way and other encumbrances affecting the subject property.