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, retroreflectors, 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.
A person occupied with surveying — the process of determining positions on the earth’s surface.
A person charged with inspecting something for the purpose of determining its condition, value, etc.
“Other costs associated with selling a home include surveyor’s fees, legal fees, estate agent’s commission, stamp duty and the VAT.”
A person who is subject to a survey.
a series of unmanned American spacecraft sent to the moon between 1966 and 1968, five of which successfully made soft landings.