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  2. Acre - Wikipedia

    en.wikipedia.org/wiki/Acre

    A virgate was the amount of land tillable by two oxen in a ploughing season. A carucate was the amount of land tillable by a team of eight oxen in a ploughing season. This was equal to 8 oxgangs or 4 virgates. The word acre is derived from the Norman, attested for the first time in a text of Fécamp in 1006 to the meaning of «agrarian measure ...

  3. Surveying - Wikipedia

    en.wikipedia.org/wiki/Surveying

    Land Surveying Software is a staple of contemporary land surveying. [ 13 ] Typically, much if not all of the drafting and some of the designing for plans and plats of the surveyed property is done by the surveyor, and nearly everyone working in the area of drafting today (2021) utilizes CAD software and hardware both on PC, and more and more in ...

  4. Construction surveying - Wikipedia

    en.wikipedia.org/wiki/Construction_surveying

    Land surveys and surveys of existing conditions are generally performed according to geodesic coordinates. However, for the purposes of construction a more suitable coordinate system will often be used. During construction surveying, the surveyor will often have to convert from geodesic coordinates to the coordinate system used for that project.

  5. United States customary units - Wikipedia

    en.wikipedia.org/wiki/United_States_customary_units

    For measuring length, the U.S. customary system uses the inch, foot, yard, and mile, which are the only four customary length measurements in everyday use.From 1893, the foot was legally defined as exactly 1200 ⁄ 3937 m (approximately 0.304 8006 m). [13]

  6. Gunter's chain - Wikipedia

    en.wikipedia.org/wiki/Gunter's_chain

    Gunter's chain (also known as Gunter's measurement) is a distance-measuring device used for surveying. It was designed and introduced in 1620 by English clergyman and mathematician Edmund Gunter (1581–1626). It enabled plots of land to be accurately surveyed and plotted, for legal and commercial purposes.

  7. Hectare - Wikipedia

    en.wikipedia.org/wiki/Hectare

    Image comparing the hectare (the small blue area at lower left) to other units. The entire yellow square is one square mile.. The hectare (/ ˈ h ɛ k t ɛər,-t ɑːr /; SI symbol: ha) is a non-SI metric unit of area equal to a square with 100-metre sides (1 hm 2), that is, 10,000 square metres (10,000 m 2), and is primarily used in the measurement of land.

  8. Level (optical instrument) - Wikipedia

    en.wikipedia.org/wiki/Level_(optical_instrument)

    Modern automatic level in use on a construction site. A level is an optical instrument used to establish or verify points in the same horizontal plane in a process known as levelling. It is used in conjunction with a levelling staff to establish the relative height or levels (the vertical separation) of objects or marks.

  9. Royal Institution of Chartered Surveyors - Wikipedia

    en.wikipedia.org/wiki/Royal_Institution_of...

    To add greater consistency to the benchmarking, measuring, and reporting of construction project costs, International Construction Measurement Standards [14] were published in July 2017. The coalition for International Land Measurement Standards – aiding consistency of interpretation and documentation of tenure – launched in June 2016.