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Transactions of the Symposium on Photo Interpretation

believe that its use will be increased, both in number of projects and in type of
applications, in the future. Undoubtedly, more refinements in interpretation
will come out of such applications in different parts of the world.
There appears to be a need of more people specialized in this field. At present
people trained and experienced in the technique are generally found in con
sulting firms or aerial survey companies, and are engaged in varying capacities
depending on the organization of projects. In all cases, each one should work
harmoniously with other engineers and geologists to form an effective team.
It is reasonable to expect that the photo interpretation technique would soon
become an integrated part of the civil engineer’s and the engineering geol
ogist’s regular training and be in universal use by these professions. Indeed,
this is a fruitful meeting ground of the engineers and geologists for the service
to mankind.
Illustration credits
Aero Service Corporation - Mendenhall Aerial Surveys - Mark Hurd Aerial Surveys -
Tippetts, Abbett, McCarthy, Stratton - USAF.
Mr. P. O. Fagerholm (Sweden) asked at what stage the detailed survey came in. Answer:
The detailed survey came in during the preliminary location stage, when alternate routes
were compared. It was employed throughout the final location and construction stages.
Prof. E. Marchesini (Italy) asked at which stage of the planning photo interpretation was
introduced. Answer: Fortunately photo interpretation was introduced already during the early
reconnaissance stage of the project. Interpreters worked closely with designers and project
engineers throughout the design and construction of this project.