FUNDAMENTALS OF SURVEYING 2
Self-Pace Module
Module 2 Omitted Measurements
Topics 1. Omitted are in One Side
2. Omitted Measurements Involving Two Adjoining Sides
3. Omitted Measurements Involving Non-Adjoining Sides
Overview: This lesson will provide an ways of determining computing omitted
measurements
Duration: Week 6-9 (4 weeks)
Targeting Learning Outcomes
Course Intended Learning -Compute missing quantities of a traverse with missing length or
Outcomes bearings
- Apply techniques for large tract of land
Essential Questions Why is it important to compute the missing sides of a traverse
Learning Targets At the end of this module, you should be able to learn how to compute
for the bearing and length of missing sides
Reference and Credits: Elementary Surveying, by Ghilani and Wolf
Elementary Surveying by La Putt
A. Introduction
Sometimes it is not possible or practical to determine by field observation the length or
directions of a line or lines within a closed traverse. These missing quantities may be determined
analytically to obtain a complete set of notes for the traverse as long as they do not exceed two (2) in
number.
However, the practice of omitting measurements for one or more sides of a closed traverse and
solving for the quantities should be avoided due to the following reasons:
1. Eliminate possible errors and mistakes (Adjustments)
2. Eliminate the checking of relative precision
However, there are various circumstances where this method can be used to advantage:
1. If the traverse is of a large tract of land, has two or more lines are in one direction
(run)
2. To divide the tract of land into specific parts or required areas
3. Presence of obstacles, rugged terrain or lack of time
4. Unfriendly and Hostile landowners
, B. Missing Data are in One Side
Sample Computations
Given the following sketch and tabulated data for a closed traverse.
Determine the length and bearing of line FA
LINE Bearing Length(m) Latitude Departure
AB N 05O30’E 492.98 +490.71 +47.27
BC N 46O03’E 845.85 +587.11 +608.90
CD S 67O24’E 852.19 -327.41 +786.78
DE S 12O17’E 1026.25 -1002.76 +218.32
EF S 83O44’W 1123.34 -122.66 -1116.62
FA - - - -
C
B
D
A
E
F
Self-Pace Module
Module 2 Omitted Measurements
Topics 1. Omitted are in One Side
2. Omitted Measurements Involving Two Adjoining Sides
3. Omitted Measurements Involving Non-Adjoining Sides
Overview: This lesson will provide an ways of determining computing omitted
measurements
Duration: Week 6-9 (4 weeks)
Targeting Learning Outcomes
Course Intended Learning -Compute missing quantities of a traverse with missing length or
Outcomes bearings
- Apply techniques for large tract of land
Essential Questions Why is it important to compute the missing sides of a traverse
Learning Targets At the end of this module, you should be able to learn how to compute
for the bearing and length of missing sides
Reference and Credits: Elementary Surveying, by Ghilani and Wolf
Elementary Surveying by La Putt
A. Introduction
Sometimes it is not possible or practical to determine by field observation the length or
directions of a line or lines within a closed traverse. These missing quantities may be determined
analytically to obtain a complete set of notes for the traverse as long as they do not exceed two (2) in
number.
However, the practice of omitting measurements for one or more sides of a closed traverse and
solving for the quantities should be avoided due to the following reasons:
1. Eliminate possible errors and mistakes (Adjustments)
2. Eliminate the checking of relative precision
However, there are various circumstances where this method can be used to advantage:
1. If the traverse is of a large tract of land, has two or more lines are in one direction
(run)
2. To divide the tract of land into specific parts or required areas
3. Presence of obstacles, rugged terrain or lack of time
4. Unfriendly and Hostile landowners
, B. Missing Data are in One Side
Sample Computations
Given the following sketch and tabulated data for a closed traverse.
Determine the length and bearing of line FA
LINE Bearing Length(m) Latitude Departure
AB N 05O30’E 492.98 +490.71 +47.27
BC N 46O03’E 845.85 +587.11 +608.90
CD S 67O24’E 852.19 -327.41 +786.78
DE S 12O17’E 1026.25 -1002.76 +218.32
EF S 83O44’W 1123.34 -122.66 -1116.62
FA - - - -
C
B
D
A
E
F
