Solution: Traverse Adjustment

Problem (2)

These are the answers, computations are left to the reader.

      Unadjusted Adjusted
Line Direction Length (ft) Latitude Departure Latitude Departure
A-B 226°54'23" 639.15 -436.662 -466.732 -436.631 -466.761
B-C 00°00'00" 523.69 +523.690 0.000 +523.715 -0.023
C-D 235°02'29" 409.54 -234.660 -335.645 -234.640 -335.663
D-A 79°35'02" 815.93 +147.517 +802.484 +147.556 +802.447
  sums: 2388.31 -0.115 +0.107 0.000 0.000

 

(a) Compute linear closure and precision

LC = 0.157
Prec = 1/15,200

(b) Adjust the latitudes and departures using the Compass Rule

See above table for answers and math checks

(c) Compute the adjusted lengths and directions
  Adjusted
Line Direction Length
A-B 226°54'36.6" 639.150
B-C 359°59'50.8" 523.715
C-D 235°02'42.5" 409.544
D-A 79°34'50.5" 815.901