**Profile leveling**is a method of surveying that has been carried out along the central line of a track of land on which a linear engineering work is to be constructed/ laid. The operations involved in determining the elevation of ground surface at small spatial interval along a line is called

**profile leveling**.

What is the differential leveling?

**Differential leveling**is the process of measuring vertical distances from a known elevation point to determine elevations of unknown points.

What is a leveling survey?

**Levelling in surveying**.

**Levelling**is a process of determining the height of one level relative to another. It is used in

**surveying**to establish the elevation of a point relative to a datum, or to establish a point at a given elevation relative to a datum.