Types Of Contouring In Surveying

Cross section method is most suitable for preparing contour maps for road works, rail works, canals etc. Based on the instruments used one can classify the contouring in different groups. In determining the location of water supply, water distribution and to solve the problem of steam pollution.

In the direct method of contouring, the reduced level of various selected points on a contour line are obtained and their positions are located. In planning and designing of dams, reservoirs, aqueducts, transmission lines. Contouring in surveying is the method of taking measurements in the field so that the contour lines can be drawn on a map.

For preparing contour maps in order to select the most economical or suitable site.

Topography means the configuration of undulations of the earth surface. It consists in finding vertical and horizontal controls of the points which lie on the selected contour line. The main goal of contour surveys is to find any significant differences in elevation on the. A contour is an outline of a mass of land in the world of land property.