A four-sided closed field traverse has the following angles: A = 81°53'30"; B = 70°28'30"; C = 86°09'30"; D = 121°30'30". The lengths of the sides are as follows: AB = 636.45 ft; BC = 654.45 ft; CD = 382.65 ft; DA = 469.38 ft. The bearing of AB is S 17°17' W. BC is in the N.E. quadrant. A to B is counterclockwise. (a) Balance the field angles. (b) Compute the bearings and the azimuths. (c) Compute the latitudes and departures. (d) Determine the linear error of closure and the accuracy ratio. (e) Balance the latitudes and departures. (f) Compute the coordinates of A, C, and D if the coordinates of station B are 1,000.00 N, 1,000.00 E.
A four-sided closed field traverse has the following angles: A = 81°53'30"; B = 70°28'30"; C = 86°09'30"; D = 121°30'30". The lengths of the sides are as follows: AB = 636.45 ft; BC = 654.45 ft; CD = 382.65 ft; DA = 469.38 ft. The bearing of AB is S 17°17' W. BC is in the N.E. quadrant. A to B is counterclockwise. (a) Balance the field angles. (b) Compute the bearings and the azimuths. (c) Compute the latitudes and departures. (d) Determine the linear error of closure and the accuracy ratio. (e) Balance the latitudes and departures. (f) Compute the coordinates of A, C, and D if the coordinates of station B are 1,000.00 N, 1,000.00 E.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A four-sided closed field traverse has the following angles: A = 81°53'30"; B = 70°28'30"; C =
86°09'30"; D=121°30'30". The lengths of the sides are as follows: AB = 636.45 ft; BC = 654.45
ft; CD = 382.65 ft; DA = 469.38 ft. The bearing of AB is S 17°17' W. BC is in the N.E. quadrant. A to
B is counterclockwise.
(a) Balance the field angles.
(b) Compute the bearings and the azimuths.
(c) Compute the latitudes and departures.
(d) Determine the linear error of closure and the accuracy ratio.
(e) Balance the latitudes and departures.
(f) Compute the coordinates of A, C, and D if the coordinates of station B are 1,000.00 N,
1,000.00 E.
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Step 1: Introduce the problem statement
VIEWStep 2: Determine error in interior angles
VIEWStep 3: Adjust the interior angles
VIEWStep 4: Plot the traverse to determine bearing and azimuth
VIEWStep 5: Compute latitude and departure
VIEWStep 6: Determine linear error of closure and the accuracy ratio
VIEWStep 7: Balance the given traverse
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