Definition of Change Point and Station

Thursday, August 13, 2015 21:44
Posted in category Surveying and Levelling
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Change Point

It may be defined as:

A Change Point ( C.P) is a point which shows the shifting of the level. It is a point on which fore and back sights are taken. Any stable and well defined object such as boundary stone, curb stone, rail, rock, etc., is used as a change point. A Benchmark may also be taken as change point. It is also known as turning point. (T.P)


Any point whose elevation is to be determined is known as station. Or a point which is to be established at a given elevation. It is the point where the staff is held not the point where the level is set up.

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