Compare theodolite traversing by included angle method with deflection angle method. Which one is suitable?
Sr.No.

Included angle method of traversing

Deflection angle method of traversing

1 
This method is most suitable for closed traverse.

This method is most suitable for open traverse.

2 
The traverse may be taken in clockwise or anticlockwise order.

The traverse is proceeded in the direction of survey only.

3 
Included angles of traverse are measured and check is applied as belowSum of measured internal angles should be equal to (2N4) x 90^{0} Sum of measured exterior angles should be equal to (2N+4) x 90^{0}

Deflection angles are measured. Checks can be applied with some field measurements, tie line or cut off line and auxiliary points.

4 
This method is suitable for small scale area e.g. buildings

This method is suitable for long narrow strip like survey of roads, rivers, canals, railways, etc.
