What is levelling?
Leveling is the branch of surveying which deals with the measurement of relative height of different points above, or below the surface of the earth. Thus in leveling, the measurement (elevations) are taken in vertical plane.
importance of levelling in road construction
Importance of levelling in field work
Leveling is a method or element of land surveying which deals with determining points on land surface above sea level. The points of known height are called benchmarks and they are determined from an assumed zero height point at sea level called datum. It employs leveling instrument such as theodolite and the abney level. The …