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Technical excursions — Excursions techniques — Technische Exkursionen 
The purpose of the technical excursions was to 
acquaint the participants of the Congress with 
the technique and applications of photogram- 
metry in Finland. 
In Finland there are only a few bigger institutes 
using photogrammetry. Therefore several small- 
er institutes and private companies as well as 
some institutes representing other fields of tech- 
nique were visited. 
THE TECHNICAL TOWN OF OTANIEMI 
The Technical Town of Otaniemi comprises the 
departments and laboratories of the Helsinki 
University of Technology, the buildings of the 
Student Body, laboratories of the Technical Re- 
search Centre of Finland as well as some other 
research institutes. Six of these were on the 
visiting list. 
The Department of Surveying of the Hel- 
sinki University of Technology and the 
Laboratory of Land Use of the Technical 
Research Centre of Finland (VTT) 
The Department of Surveying consists of the In- 
stitute of Geodesy, Cartography and Photogram- 
metry, and the Institute of Real Estate Techniq- 
ues and Law. 
The laboratory of Land Use is one of the 32 lab- 
oratories of the Technical Research Centre of 
Finland. Research in photogrammetry, remote 
sensing, surveying, land use planning, land use 
economics, and real estate appraisal is being 
carried out in the laboratory. 
Dr. Einari Kilpelá, professor in photogrammetry 
and head of the Surveying Department, present- 
ed the curriculum and facilities of the Depart- 
ment to the 300 visitors from 47 countries. The 
visitors were then taken to a guided tour through 
the Institute of Photogrammetry. During the tour 
the research and education program and facilities 
were presented. Among the equipement demon- 
strated were a stereocomparator, a horisontal 
goniometer and several types of analogical in- 
struments from various manufacturers. Further- 
more, the participants visited the Laboratory of 
Land Use of the VTT which is situated in the 
same building. The research work of the Lab- 
oratory of Land Use is closely related to the 
scope of instruction of the Department of Sur- 
veying. Remote sensing is one of its current 
projects. The presentation was given by the 
head of the Laboratory, Mr Pekka Raitanen, who 
also gave a special demonstration regarding the 
laboratory's remote sensing program. 
The Ship Building Laboratory of the Tech- 
nical Research Centre of Finland (VTT) 
53 persons from 16 countries visited this Lab- 
oratory, in which Mr. Johan Lund told about the 
product development of ships and the miniature 
models used in measuring the resistance and 
investigating seaworthiness and manoeuverability 
of ships. He also presented the test basins of the 
Laboratory, one of which measures 120 m by 
11 m by 5 m, and the other, the seakeeping basin, 
40 m by 40 m by 3 m. 
The Road and Traffic Laboratory of the 
Technical Research Centre of Finland 
(VTT) 
Ms Tekla Rosenberg described the research 
work of the Laboratory explaining the partly 
photogrammetric methods of planning, construc- 
tion and maintenance of traffic routes. She also 
told about the investigation of traffic techniques 
and safety, and technical-economic matters to 
the 69 visitors from 30 countries. 
The Helsinki 
Library 
The University Library as well as the Main Building 
are planned by Architect Alvar Aalto, and situated 
in the middle of the University campus. The Li- 
brary offers a pleasant environment for the study 
of technical literature. Ms Sirkka-Liisa Känsälä 
presented the Library to 26 visitors from 18 coun- 
tries. She told that the University Library also 
functions as the National Central Library of Tech- 
nology. In addition to its free services the Library 
offers chargeable services; the Computer-Based 
SDI Service regularly delivers to its clients a list 
of literature references to new journal articles, 
reports, patents, congress papers, etc. 
Retrospective literature searches are carried out 
using both the interactive system of the Library 
and foreign information retrieval systems in the 
on-line mode. 
University of Technology 
The Finnish State Computer Centre 
The Finnish State Computer Centre moved in 
1975 over to a new specially planned building 
in Otaniemi. This greatly facilitated the work of 
various research centres already situated in Ota- 
niemi. 
Mr. Matti Suominen presented the premises of 
the Computer Centre and explained its scope of 
activity. The large-capacity computers of the 
Finnish State Computer Centre satisfy the needs 
of state institutions and universities throughout 
the country. 
The Computer Centre received 79 visitors from 
30 countries. 
The Geological Survey of Finland 
Ms Sinikka Roos enlarged upon the research 
work of the Geological Survey. She pointed out 
that photointerpretation is used for technical 
and petrological studies of bedrock and glacial 
structures, for mapping of drift, gravel and ground 
water inventories, for ore exploration, and for 
engineering geology. All the conventional types 
of photos (black and white, colour, false colour) 
taken from various heights as well as satellite 
imageries are studied. 
The Geological Survey of Finland was visited by 
104 congressists from 26 countries. 
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