Civil and Environmental Engineering

Core Studies

Portfolio Section: Surveying
RESIT Assignment: Development of surveying methods; area and height calculations

Two Tasks to be completed

1. Report

Land surveying has advanced over the last hundred years with increasingly rapid
technological development during the last decade changing site practices and the
equipment used.
Describe in a short report (1000 words approx.) how the development of modern
technology has affected the gathering of field data, and the processing of this
data in the office both in drawing and calculation. Consider the whole range of
electronic surveying instruments, including but not limited to: electronic distance
measurement (EDM), theodolite, Total Stations and GPS equipment.

2. Trigonometry (3 parts)

a) On a land survey the distance betw een two points A and B cannot be
measured directly because of a small wood. From a third point, AC and BC
can be measured and are found to be 145m and 210m respectively, and
angle BCA = 39 ˚.
Find the distance between A and B.
Show all working, and draw the plot to scale, with dimensions, angles and
labels, either manually or using AutoCA D (include the drawing as a .jpg or
.dwg file uploaded to your webfolio along with the assignment).

b) A theodolite survey has been carried out to find the size of a farmer’s field.
Calculate the area of the field in he ctares if AB = 250m, BC = 270m, CD =
270m, DA = 360m, angle ABC = 98 ˚20’ and angle ADC = 70˚30’.
As task (a), show all working, and draw the plot to scale, with dimensions,
angles and labels, either manually or using AutoCAD (include the drawing
as a .jpg or .dwg file uplo aded with the assignment).

2
1.45
35°
30m

Trigonometry (continued)

c) Calculate the height of the building shown below given that that height of
the surveying instrument above ground level is 1.45m and the angle of
elevation is 35°.
As task (a), show all working.

Notes to the assignment

Clear layout, title page, contents page, headings and sub-headings, page numbers, and
diagrams (where appropriate). Each task to start on a new page.
Sources of reference material must be stated, using the Harvard Referencing style.
Use your own research, plus the materials, websites, books, and ot her sources noted in
the Blackboard course documents folder and Module Study Guide.
Assignment to be submitted in a new separate section of your Core Studies webfolio.
Please notify the module tutor when the assignment is ready to be marked.

Figure 1. Height of building

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