Ex29-5 : Compute the adjusted Independent Coordinates for the traverse defined in Example 29.1 by applying Bowditch's method of direct correction to coordinates having error of closure.

Solution :

Table 29.3 Computation of Independent Coordinates by direct correction to coordinates traverse

Stations

(1)

Sides

(2)

Distance (m)

(3)

Uncorrected Independent Coordinates (m)

(4)

   Bowditch's Corrections (m)

(5)

Adjusted Independent Coordinates (m)

(6)

X
Y
d Xi
d Yi
X
Y

A

 

 

7200.054

7640.842

 

 

7200.054

7640.842

B

 

372.222

7204.601

8013.036

0.137

0.085

7204.738

8013.121

C

 

537.210

7369.177

8001.383

0.335

0.206

7369.527

8001.588

D

 

779.648

7356.207

7759.292

0.623

0.348

7356.830

7759.640

A

 

976.793

7199.071

7640.236

0.983

.606

7200.054

7640.842

 

 

2665.873

dX = - 0.983

dY = -0.606

 

 

 

 

<< Back | Next >>