Surveying has lot of types
and let me write it in simpler words so that you will understand it well.In this article you will find it easy to remember by reading it thoroughly.
The difference between
plane and geodetic surveying is given in the table below:
Plane Surveying
Plane surveying is a
branch of surveying in which the surface of the earth is considered as plane
surface.For small projects covering area less than 250 square kilometer’s.
Earth curvature is not counted for in distances.
- The earth surface is considered as plain surface.
- The Curvature of the earth is ignored. (i.e., 2 Dimensional)
- The triangle formed by any three points is considered as plain.
- Carried out for a small area of <250 km.
- Plane surveying uses normal instruments like chain, measuring tape, theodolite etc.
- Survey accuracy is low.
- Line joining any two stations is considered to be straight.
Geodetic Surveying
Geodetic surveying is
another branch of surveying in which the curvature of the earth is considered
when taking measurements on earth’s surface. When survey extends over a large
areas more than 250 square kilometers and degree of accuracy is also great.Geodetic
survey is used to provide control points to which small surveys can be
connected.
- The earth surface is considered as curved surface.
- The Curvature of the earth is taken into account.
- The triangle formed by any three points is considered as spherical.
- Carried out for area of >250 km.
- Geodetic surveying uses more precise instruments and modern technology like GPS.
- Survey accuracy is high.
- The line joining any station is considered as spherical.
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