Tag Archive for Tag: Indirect or Reciprocal Levelling

Tag: Indirect or Reciprocal Levelling Ranging

When a survey line is longer than a chain length, it is necessary to align intermediate points on chain line so that the measurements are along the line. The process of locating intermediate points on survey line is known as ranging. There are two methods of ranging viz., direct ranging and reciprocal ranging. Direct Ranging If the first and last points are

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