Advantage
• It is most suitable for preparing
for small scale maps.
• It is the most rapid method
• Field book is not necessary as
plotting is done in the field concurrently with the fieldwork and hence the
mistakes in booking the field notes are avoided.
• The surveyor can compare the
plotted work with the actual features of the area surveyed and thus can
ascertain if it represents them properly and cannot overlook any essential
features.
• There is no possibility of omitting
the necessary measurements as the map are plotted in the field.
• Errors of measurements and the plotting may be readily detected by check lines.
• Counters and irregular objects maybe
represented accurately since the tract is in view.
• It is particularly advantageous
in a magnetic area where compass survey is not reliable.
• It is less costly than a
theodolite survey.
• No great skill is required to
prepared maps.
Disadvantage
• Plane table is essentially a
tropical instrument.
• It is not suitable for work in a
wet climate.
• It is heavy and awkward to carry.
• There are several accessories to
be carried they are like to be lost.
• It is not intended for accurate
work.
• If the survey is not to be re-plotted
to a different scale or quantities are not to be computed.
• It is a great inconvenience in absence
of the field notes.
