Ex29-2 : Calculate the Independent Coordinates for the traverse defined in Example 29.1 . Given that the independent Coordinates of the stations A as ( 7200.054 , 7640.842).

Solution :

Table 29.2 Computation of Independent Coordinates of a closed-loop traverse

Stations

(1)

Sides

(2)

Length ( li ) m

(3)

Azimuth (qi)

(4)

     Consecutive Coordinates, (m)

(5)

Independent Coordinates (m)

(6)

Departure

(a)

Latitude

(b)

X

(a)

Y

(b)

A

 

 

 

 

 

7200.054

7640.842

 

AB

372.222

0° 42'

4.547

372.194

 

 

B

 

 

 

 

 

7204.601

8013.036

 

BC

164.988

94° 42'

164.576

-11.653

 

 

C

 

 

 

 

 

7369.177

8001.383

 

CD

242.438

183° 04'

-12.970

-242.091

 

 

D

 

 

 

 

 

7356.207

7759.292

 

DA

197.145

232° 51'

-157.136

-119.056

 

 

A

 

 

 

 

 

7199.071

7640.236

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