In surveying, triangulation is the process of determining the location of a point by measuring only angles to it from known points at either end of a fixed baseline , rather than measuring distances to the point directly as in trilateration
What is meant by triangulation?
Triangulation is a type of survey which starts at a baseline joining two positions with a known distance and grows by adding sides to form a triangle, measuring the angles formed – always exceeding 20° – and shaping a network of connected triangles whose sides have ‘calculated' distances.
What are the objectives and basic principles of triangulation?
OBJECTIVE OF TRIANGULATION SURVEYS
The main objective of triangulation or trilateration surveys is to provide a number of stations whose relative and absolute positions, horizontal as well as vertical, are accurately established . More detailed location or engineering survey are then carried out from these stations.
What are the steps in triangulation method?
- Initialization,
- Triangulation,
- Finalization.
What is primary triangulation?
Primary triangulation It is the highest order and is employed either to determine the earth figure or to give the most precise control points to which secondary triangulation may be connected. Primary triangulation usually cover large area.
What is the golden rule of triangulation?
The golden rule of triangulation is “plan length against vertical height” to find the sloping length of a line . Several different patterns or layouts use triangulation methods, including rectangular transitions, round tapers, oval to round fittings, square to round fittings and offset square to round transitions.
What are the four types of triangulation?
In 1978, Norman Denzin identified four basic types of triangulation: (1) data triangulation: the use of multiple data sources in a single study ; (2) investigator triangulation: the use of multiple investigators/research- ers to study a particular phenomenon; (3) theory triangulation: the use of multiple perspectives to ...
What is an example of triangulation?
A couple having an argument , for example, might turn to a roommate, encouraging them to take a side or help work things out. People with narcissistic personality disorder or narcissistic tendencies might also use triangulation, usually to maintain control over situations by manipulating others.
Why is triangulation used?
Triangulation is a method used to increase the credibility and validity of research findings . ... Triangulation is also an effort to help explore and explain complex human behaviour using a variety of methods to offer a more balanced explanation to readers.
What is the other name of triangulation?
| route- planning orienteering | routing direction-finding | map reading |
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What is triangulation method in surveying?
Triangulation is a surveying method that measures the angles in a triangle formed by three survey control points . ... Each of the calculated distances is then used as one side in another triangle to calculate the distances to another point, which in turn can start another triangle.
What is triangulation of data in education?
Triangulation is simply the process of using at least three points of data when making educational decisions . ... Using triangulation assures that the most informed and appropriate decisions are being made on behalf of each student.
What is triangulation method in physics?
Triangulation is the process of determining the location of a point by measuring the angles to it from two known points rather than measuring distances directly.
What is the best shape of triangle in triangulation?
Simple triangles should be preferably equilateral . Braced quadrilaterals should be preferably approximate squares. Centered polygons should be regular. The arrangement should be such that the computations can be done through two or more independent routes.
Which triangulation system will not give more accurate results?
Which triangulation system is will not give more accurate results? Explanation: In a single chain of triangles, narrow strips are used for covering the terrain . This process can be useful in case of obtaining results in a rapid way within the expenditure. But it is not suitable for primary works.
Which type of tower can be used for small heights?
Which type of structure (tower) can be used for small heights? Explanation: A tower is generally made of masonry, timber and steel . For small heights, masonry structure is adoptable, which makes them economical for the range of work they do.
