Compare theodolite traversing by included angle method with deflection angle method. Which one is suitable?
Sr.No.
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Included angle method of traversing
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Deflection angle method of traversing
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1 |
This method is most suitable for closed traverse.
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This method is most suitable for open traverse.
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2 |
The traverse may be taken in clockwise or anticlockwise order.
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The traverse is proceeded in the direction of survey only.
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3 |
Included angles of traverse are measured and check is applied as belowSum of measured internal angles should be equal to (2N-4) x 900 Sum of measured exterior angles should be equal to (2N+4) x 900
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Deflection angles are measured. Checks can be applied with some field measurements, tie line or cut off line and auxiliary points.
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4 |
This method is suitable for small scale area e.g. buildings
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This method is suitable for long narrow strip like survey of roads, rivers, canals, railways, etc.
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