Difference between Direct and Indirect methods of Contouring
S.No. | Direct Method | Indirect Method |
1. | In this method, the contours are directly located on the ground and the points of given contour are marked on the ground. | In this method, levelling work is carried out in the field and location of contour points is done in the office. |
2. | These methods are applicable, where high precision is required. | These methods does not required high precision |
3. | These methods are suitable for small areas. | These methods are suitable for large areas. |
4. | These methods are much accurate than indirect methods. | These methods are not much accurate than direct methods. |
5. | These methods are tedious and time consuming. | These methods are easy and consume less timings. |
6. | It is Expensive. | It is Cheaper. |
7. | Not suitable for hilly areas. | Suitable for hilly areas. |
8. | Calculations cannot be done after contouring. | Calculations can be done as and when required. |
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