Route Survey Of The Stretch Of Road From Oriawo Along Ogbomoso Road, Oyo To School Of Science, Sabo Oyo Town, Atiba Local Government Area, Oyo State

The table below also shows the back computation of the first set of control used.

From the above two tables:
The Observed angle at FSS2/GPS/120 (between FSS2/GPS/121 & FSS2/GPS/118) =120º 14’ 25”
Forward bearing from FSS2/GPS/120to FSS2/GPS/118 =358º 09’ 34.64”
Back bearing from FSS2/GPS/120 to FSS2/GPS/121 =237º55’15.9”
Computed Angle betweenFSS2/GPS/121&FSS2/GPS/118 = Forward bearing-Back bearing
=358º09’ 34.64”- 237º 55’ 15.9”
= 120º14’ 18.6”
Difference between the two angles =11.4”
Measured distance from FSS2/GPS/120 to FSS2/GPS/118 = 93.473m
Computed distance from FSS2/GPS/120 to FSS2/GPS/118 = 93.476
Difference between the two distances =0.003

From the above two tables:
The Observed angle at FSS2/GPS/03 (between FSS2/GPS/04 & FSS2/GPS/02) =194º19’ 20’’
Forward bearing from FSS2/GPS/04 to FSS2/GPS03 =248º26’ 50.06”
Back bearing from FSS2/GPS/03 to FSS2/GPS/02 =153º47’ 58.8”
Computed Angle betweenFSS2/GPS/04 & FSS2/GPS/02 = Forward bearing-Back bearing
=153º47’58.8”- 248º26’ 50.06”¬+360º
= 265º 21’ 8.74”
Difference between the two angles                                  =11.26”
Measured distance from FSS2/GPS/03 to FSS2/GPS/04=173.002m
Computed distance from FSS2/GPS/03 to FSS2/GPS/04 = 173.983m
Difference between the two     distances    = 0.019m
From the result above obtained, it was concluded that the controls were in their normal position.