SWEDEN 
National Report to the 
IXth International Congress of Photogrammetry to be held in 
London Sept. 1960 
Status of photogrammetry in Sweden 1960, 
developments and other activities during the period 1956—1960 
reported by Dr P. O. Fagerbolm 
introductory remarks 
Already in 1936 a systematic general cadastral sur- 
vey of Sweden on a scale of 1 : 10,000 was started 
with—at that time—rather unproved photogram- 
metric methods. Since then the róle of photogram- 
metry in the survey activities in Sweden has con- 
stantly grown and photogrammetry is today also 
dominating the large scale surveys and the resources 
surveys, especially forest surveys. The very rapid 
acceptance in Sweden of the photogrammetric map- 
ping methods is a consequence not only of the in- 
creased quality of the methods but also of the 
immense increase of the mapping requests for the 
social, economic and communication developments 
of the country. Especially the following five rea- 
sons for the increase should be mentioned: 
1:0 In the late 1940ies a law for planning of ur- 
ban and other densily populated areas was pas- 
sed. The adoption of said law called for a lot 
of large scale surveys, so did some big reallot- 
ment projects. 
2:0 The increase of consumption of electrical pow- 
er caused a rapid planning and building of 
hydroelectric power plants, water storages etc. 
in North Sweden. 
3:0 The increase of highway transportation and of 
the number of private cars has resulted in a 
rapid growth of the road building activities. 
4:0 The forestry industry has been and is in an in- 
tensive period of rationalizing and planning. 
5:0 A new topographic map has been developped 
and is now in production, of course on a pho- 
togrammetric base. 
These expanding mapping needs were combined 
with a lack of personnel trained in field mapping 
with classical methods, with fast increasing salaries 
etc. for such personnel and their assistants, with a 
decrease of the number of working hours per week 
and last but not least with the great importance of 
the time saving for many projects in which the 
mapping phase represents a very small part but a 
key-part. 
Photogrammetry has played an important role 
in the development of many important branches of 
our modern society. High demands on the capacity 
of the photogrammetric production have been raised 
and due to the appearance of several private firms 
in the latter part of the last decade the joint pro- 
duction by governmental and private organizations 
is now sufficient. There is a constant interest in and 
efforts are made for the increase also of the quality. 
This efforts are often combined with the produc- 
tion but the lack of personnel, especially of highly 
qualified research people has, of course, hampered 
these efforts when the production demands have 
been great. Several important results and valuable 
experiences have been made during the last four- 
year period. The various activities connected with 
the ISP has played an important róle herein. 
The International Congress of Photogrammetry 
held in Stockholm in July 1956 certainly increased 
the speed of the application of photogrammetry in 
Sweden. The proceedings of the aforementioned 
congress was published as volume XII of the In- 
ternational Archives of Photogrammetry around 
New Year 1957. 
Photogrammetry in the official 
Swedish mapping 
The official maps of Sweden are produced by the 
Geographical Survey Office with the exception of 
the sea-charts which are produced by the Hydro- 
graphic Department of the National Board of Ship- 
ping and Navigation. 
T he official land-maps 
As mentioned above and as described in the na- 
tional report to previous congress (See Vol. XII 
Part 2 of the International Archives of Photogram- 
metry) an accelerated production of a general cad- 
astral map (scale 1 : 10,000) showing the property 
SWEDEN 3