Contents
show
What is Surveying?
Performing surveys is the art of figuring out where things are in relation to one another. A variety of surveying equipment is used to properly measure horizontal lengths, vertical distances (elevations), horizontal angles, and vertical angles to determine the relative positions of the objects. In this article, we will briefly discuss the difference between plane surveying vs geodetic surveying.What is Levelling?
Surveying’s levelling branch deals with determining the relative positions of points on the earth’s surface in a horizontal plane. As a result, levelling is concerned with taking measurements in the vertical direction. Surveying is concerned with taking measurements on a flat surface.Purposes Of Surveying
The objectives of surveying are, 1. To take measurements to ascertain the relative locations of the points, above or below the surface of the ground.
Advertisement
Uses Of Surveying
Various uses of surveying are, 1. To create a topographical map of a country that depicts natural features such as rivers, streams, lakes, hills, valleys, forests, and so on. 2. To create a cadastral map that depicts the boundaries of fields, plots, and so on.Plane Surveying Vs Geodetic Surveying
What Is Plane Surveying?
It is a method of surveying in which the earth’s mean surface is treated as a plane and the spheroidal shape is ignored. It is appropriate for relatively small areas, i.e. less than 250 km2. It can be used for engineering, architecture, commercial, scientific, and other reasons.What Is Geodetic Surveying?
Specifically, it refers to a method of surveying where the spherical shape of the earth is taken into consideration. It is used for large-scale surveying projects that require extensive coverage. Obtaining accurate maps of large areas and establishing control points for all other surveys are two applications of this technique.Difference Between Plane Surveying Vs Geodetic Surveying
Plane Surveying Vs Geodetic Surveying
Plane surveying | Geodetic surveying | |
1 | It is the type of surveying in which the mean surface of the earth is considered as a plane and the spheroidal shape is neglected. | It is the type of surveying in which the spheroidal shape of the earth is taken into account. |
2 | All survey lines are considered as straight and all triangles are considered as plane triangles. | All survey lines are considered curved and all triangles are considered as spherical triangles. |
3 | It is used for the survey of relatively small areas, i.e. less than 250km2. | It is used for large areas, i.e. more than 250km2. |
4 | The standard of accuracy is low. | The stranded of accuracy is high. |
5 | The directions of plumb lines at various points are assumed to be parallel to one another. | There are no parallels between the directions of plumb lines at various points along the line of sight. |
6 | It is useful for engineering, architectural, commercial, scientific, etc. purposes. | In order to obtain accurate maps of large areas and to set control points for all other surveys, it is necessary to employ this technique. |
Types Of Surveying In Civil Engineering
If you like this article then please share it with your friends & also like our and join our .
I love this are the kind of theory teaching I have been tough mewhile the context are correct but i need more of the practical aspect of this teachings.
Thank you all for this awesome knowledge i feel so excited reading. I’m a student surveyor and I love to understand more thanks.