Difference between Plane and Geodetic Surveying
|
Plane Surveying
|
Geodetic Surveying
|
|
Curvature of the
earth is not taken in to consideration |
In this curvature of
earth is considered. |
|
In plane Surveying,
line joining any two points of triangle formed by any three points is considered as straight line and plane triangle are assumed to be plane angles. |
In geodetic
surveying line joining two points of triangle formed by three points is considered as curved line of spherical triangle and angles of triangle are considered as spherical angles. |
|
This survey is done
on smaller area less than 250km2 |
This survey is done
on large area greater than 250 km2 |
|
Required accuracy is
competitively low. |
High accuracy is
required |
|
Simple methods and
instruments can be used as the required accuracy is low. |
Very refined methods
and instruments are used. |
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