The square method of indirect contouring is commonly used in
Answers
Indirect method- In this method, spot level is taken at the regular interval along predetermine line on the ground the work is then plotted on plan and then the required contour line is drawn by the process of interpolation. The indirect method is less tedious and speedy as compared to the direct method.
Answer:
The square method of indirect contouring is commonly used in small and low undulating areas.
Explanation:
The indirect approach involves taking spot levels along a predetermined line on the ground at regular intervals. The work is then plotted on a plan, and the necessary contour line is then created using the interpolation process. In comparison to the direct method, the indirect method is quicker and less time-consuming.
The indirect method of contouring is appropriate for terrain with undulations and hills. A system of straight lines and a number of guide points are chosen, and their altitudes are calculated. Following the plotting of these points, interpolation is used to create contour lines.
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