Several Aspects of Surveying

Surveying is the process of taking measurements of feature on and occasionally above and below the earth's surface to determine their relative positions. It is a science of accurately determining the terrestrial position of points and the distances and angles between them. The practice may be more precisely described as land surveying to distinguish it from other forms of surveying like building surveying or quantity surveying. Technical Data used in the field explained in civil surveyor course in rawalpindi. The process of land and site survey, survey restricted typically to smaller areas of lands in comparison to land surveying, is important for purposes like: Mapping, to establish land maps from knowledge of geographical features of the land, Ownership issues, to establish boundaries and establish ownership over land masses, Resolving disputes and encroachment issues over land, New construction like buildings, marking off building areas, Assess the archaeological sites in a landscape, Mapping features of the bed of a water body, Determining the soil types and properties of the soil cover,

Governmental purposes; Of the divisions within land surveys, engineering surveying and topographic surveying (representation of land features) are typically relevant to site survey while geodetic surveying (accounting for the Earth's curvature) is relevant to survey of huge chunks of land masses. The several methods involved in land surveys are described below: 1. For determining distances: Measuring of the areas with iron chains, steel and invar tapes taking into consideration horizontal and slope areas. Some more details of civil surveyor course in rawalpindi are as under. 2. for determining angles: Use of compasses bearing magnets, scribed discs, telescopes with reticles. 3. for measuring heights: Use of altimeter or barometer using air pressure as indication of height

4. Global Positioning System (GPS): Advent of the technology has given rise to estimation of elevation derived with sophisticated satellite receivers. 5. Triangulation: With the method, which has outdated GPS, distances, elevations and directions between objects at great distance from one another can be determined with reasonable accuracy. The set of tools or instruments needed for land surveys have not changed much over the years. Only they have evolved to provide greater accuracy. Apart from the tapes, chains and compasses, some of the equipment’s that are used in the survey of lands are: theodolite, tripod, electronic distance measurement device (EDM), set up for satellite positioning system for working of GPS, total robotic stations (in conjunction with theodolite), etc. TSK Training for Skills and Knowledge is the best institute in Rawalpindi Islamabad for Pakistani Students who wants to join civil surveyor course in islamabad.

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