Land Survey

in Land

As we all know surveying is used to measure property area, establishing roads, waterways, pipelines, sewers, maps, charts, etc. It contains measuring elevation difference, angles, and distances. These measurements are used to calculate area, volumes and marking of locations according to some coordinate system. It involves measuring of dimensional relationships between physical attributes, points, lines on the earth surface.

The measurement taken provides us the length, which is in feet or in meters, and direction, which is in azimuth angle to a reference meridian that normally taken as north south direction. Normally, the area to be surveyed have its origin placed at west and south due to which all coordinates are positive in north east quadrant. It involves vertical measurement providing the third dimension to objects position, which is given as distance above surface such as mean sea level also called as datum. This mean sea level is taken as average of low and high tides during lunar month.


Land Surveying is very important in improvement of the human environment. Its has also spread in field of mapping and establishment of legal boundaries of land ownership, transportation, telecommunications, buildings. It is an important part of planning and implementation of any construction.

In land survey, subdivision plats/maps, registered land surveys, judicial surveys, and space delineation are also certified. Re-establishment of land boundaries and cadastral surveys based on documented records and historical evidence is also included in Land survey. It is also associated with services such as the analysis and utilization of land survey data as well as construction layout surveys, horizontal and vertical control surveys, mapping and related data accumulation, , precision measurements of area, length, elevation, angle, and volume. Land surveying mainly focuses on establishment of property boundaries through inspection, systematic study, study of legal instruments related to property and gathering information through field observations and measurements.


Now days, instrument such as total station is widely used which is a the odolite having EDM (electronic distant measurement device)  used for vertical, horizontal, angular measurements. Earlier, tape for measuring short distances, level for the elevation difference, and the odolite for measuring horizontal and vertical angles along with triangulation were the basic tools used for land surveying. Total stations are no longer dependent on prism or reflector and are automatic, and can e-mail field data to the office computer via GPS (Global Position System). Introduction of the total station has evolved optical-mechanical device to computerized full electronic device. Land Surveying has been totally revolutionized with such modern equipment, and their accuracy, speed.

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KevinMeaney has 1 articles online


Kevin Meaney is an online marketer in the Ireland based company. He loves to write on different subjects. Now he is sharing information on Land survey.

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Land Survey

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This article was published on 2011/03/28