2.2. Advanced-technology assisted methods
Pakpen (2013) classified advanced-technology assisted methods as
x Tachometric and Laser Measuring
Instruments
o Laser meter
o Line laser
o Protractor
o Advanced Nivos
o Advanced Theodolites
o Total Station
x GPS (Global Positioning System)
x Laser Scanning
o Tellural Laser Scanning
x Geographical Information Systems and
Photogrammetry
o Sky photogrammetry
o Tellural photogrammetry
o Close up picture photogrammetry
In addition to this classification, Hanke and Grussenmeyer (2002) discussed architectural photogrammetry
methods by classifying them in to basic theory, procedures and items. Turan (2004) however classified the
architectural photogrammetry methods as,
x Single image (monoscopic) method
x Stereo image (stereoscopic) method
x Beam of rays (bundle) method
There are many methods, technical tools and equipments which named as advanced technological methods in
today’s terminology. However the program, hardware and methods which are used surveying structures will be
mentioned. Advanced technology assisted methods are computer-aided methods which allow the progress of
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surveying and drawing process together. Survey studies with conventional methods, consists of roughly measuring
and drawing teams. However the fact that both the office team is far away from the works done on the site and the
measuring team does not have the necessary details for drawing results in increasing error margin, thus damaging
credibility. In the survey studies done with advanced-technology supported methods, these methods prevent the
teams from being divided and provide site and office collaboration, bringing the site to the office venue.
The most important device to use with the advanced-technology based methods in survey studies, with positive
properties like sensitivity, credibility and providing multiple purpose usage, is the laser scanner. The data obtained
by this method, include documentation on the whole structure, provide the data like photographs, sections, plans and
details which cannot be obtained with other methods.
Another advantage of using advanced-technology based methods is being able to position the devices which are
going to survey at a definite distance to the area which is going to be measured and thus being able to take the
measurements of places which are at risk of collapse or hard to reach in a correct and safe way. Using these methods
also minimizes the error margin which is caused by taking measurements from a close distance with traditional
methods and devices which have low sensitivity and they also protect the team from risky situations.
When the laser scan is completed with the laser measuring devices, with the gathered 3 dimensional data we can
take positions from every point and create unlimited sections. Also in despite of their high initial investment costs,
in documentation studies done with these methods less human power and time are required. Therefore in the long
term there is a reduction in time and human effort however the most important thing that they provide information to
scientists from different subjects with this real documentation. Gathering the documentation in a numeric way and
which is digitized enables us to keep, store and update this information better when necessary and in an
interdisciplinary context to utilize the documents in the most effective manner.