OLADAYO BLOG

Land surveying and its importance By   Dennis Ayemba  - March 2, 2020 Surveyors play an integral role in land development, from the planning and design of land subdivisions through to the final construction of roads, utilities and landscaping. Surveying and land surveying is the measurement and mapping of our surrounding environment using mathematics, specialized technology and equipment. Surveyors measure just about anything on the land, in the sky or on the ocean bed. They even measure polar ice-caps. Land surveyors work in the office and in the field. In the field, they use the latest technology such as high order GPS, Robotic Total Stations ( Theodolites ), and aerial and terrestrial scanners to map an area, making computations and taking photos as evidence. In the office, Surveyors then use sophisticated software, such as Auto-cad to draft plans and map the onsite measurements. Surveyors work on a diverse variety of projects from land subdi

Types of Surveying Surveying is primarily classified as under: Plane surveying Geodetic Surveying Plane Surveying  is that type of surveying in which the mean surface of the earth is considered as a plane and the spheroidal shape is neglected. All triangles formed by survey lines are considered plane triangles. The level line is considered straight and all plumb lines are considered parallel. In everyday life were are concerned with small portion of earth’s surface and the above assumptions seems to be reasonable in light of the fact that the length of an arc 12 kilometers long lying in the earth’s surface is only 1cm greater than the subtended chord and further that the difference between the sum of the angles in a plane triangle and the sum of those in a spherical triangle is only one second for a triangle at the earth’s surface having an area of 195 sq. km. Geodetic Surveying  is that type of surveying in which the shape of the earth is taken into account. All lines lyin

The history of surveying dates back to ancient times, with a recorded land register in Egypt in 3000BC, and re-establishment of farm boundaries following floods of the Nile River and construction of the Great Pyramid of Giza recorded about the same time. Under the Romans, land surveying was established as a profession and land surveyors established the basic measurements under which the Roman Empire was divided, such as a tax register of conquered lands (300AD). Biblical references to land boundaries and landmarks can be found in: Deuteronomy 19.14 and 27.17; Proverbs 22.28 and 23.10; and Job 24.2 In eighteenth century Europe, a method of surveying known as triangulation, which relied on the measurement of angles, was used to build a hierarchy of networks to allow point positioning within a country. Tableis of Surveying, 1728 Cyclopedia: historical surveying instruments In the early days of British colonisation of Australia and New Zealand "much of the survey work und