Difference between Plane and Geodetic Surveying
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Plane Surveying
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Geodetic Surveying
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Curvature of the earth is not taken in to consideration
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In this curvature of earth is considered.
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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.
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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.
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This survey is done on smaller area less than 250km2
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This survey is done on large area greater than 250 km2
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Required accuracy is competitively low.
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High accuracy is required
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Simple methods and instruments can be used as the required accuracy is low.
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Very refined methods and instruments are used.
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