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Activities of the International Institute
for Aerial Survey and
Earth Sciences (ITC)*)
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the parcels. At present research is going on to develop
this system and to test its applicability.
For rural land development projects a special land-infor
mation system is in operation. A great deal of the infor
mation is derived from the cadastral registers. It is sup
plemented by information about leasing, the values of
the parcels, the new parcels according to the re-alloca
tion plan and about the financial arrangements at the end
of the procedure. Since 1970 the Cadastre has developed
an automated landinformationsystem for rural land de
velopment projects. The system is called the ARAK-sys-
tem; ARAK stands for automated landconsolidation in
formation system of the Cadastre. The system is in opera
tion for the whole procedure from the voting to the
financial arrangements. The system delivers among
other things the documents, that have to be laid down for
public inspection in several phases of the procedure.
Also the re-allocation deed is printed by the system. It is a
pure administrative system which does not include (digi
tal) cartographic information. Since the co-ordinates of
the centres of the parcels in the old situation (before
re-allocation) can be added, it is possible to provide
cartographic information about the farmings in the old
situation.
To compute the values of the parcels in the old situation
(before re-allocation) the existing cadastral maps are
used. To draw up the re-allocation plan, project maps on
the scale 1 to 2000 based on photogrammetry are used. In
most cases these maps are supplemented by informa
tion based on field measurements. As mentioned before
the Cadastre is developing a system for digital proces
sing of photogrammetric data. The field measurements.
carried out with self-recording tacheometers, can be
processed by an automatic system which is called „Sys
teem Detailmeting."
The sizes and values of the parcels in the old situation and
in the new situation (after re-allocation) are computed by
digimetersand automatically transmitted into the ARAK-
information system.
The Government Service for Rural Land Development
has developed a landinformation system that provides
agro-technological information for research purposes in
the preparation phase of rural land development pro
jects. The system also includes (digital) cartographic
information. After the first registration the information is
not kept up-to-date. It has been decided to investigate to
which extent it is possible to connect the information of
this system with the ARAK-system.
On behalf ofthe management of rural land development
projects, a network planning system is in operation that
has been developed by the Government Service for Rural
Land Development. This Service has also developed a
system for the evaluation of project plans in behalf of the
decision-making. In due course this evaluation-system
will also include a method for the assessment of the
effects the implementation of a plan will have on the
water, the land and the air in the project area and its
surroundings.
Under the charge ofthe Study Centre for Land Informa
tion at Delft research is going on to investigate whether
the principle of re-allocation is useful in the process of
town-reconstruction. In the future the Cadastre will per
haps be as much involved in town-reconstruction as it is
in rural land development today.
by prof. ir. L. \/an Zuijlen, professor of the Cartography Department of the Internation
al Institute for Aerial Survey and Earth Sciences (ITC), Enschede, the Netherlands
and vice-director of the Topographic Service ofthe Netherlands, Dei ft, the Nether
lands.
.,00—-—
In 1949 a special commission of experts in Cartography
had the task to work out the needs of the developing
countries. Prof. dr. ir. Willem Schermerhorn, civil-engin
eer, famous photogrammetrist, prime minister of the
Netherlands in 1945-1946, was one of the members of
that commission ofthe United Nations. This commission
published in Volume I of World Cartography ofthe UN
their report and we read that the physical resource sur
veys in principle have the following categories:
Inleiding gehouden op 23 juni 1982 tijdens de door de NVG
georganiseerde studiedag in het kader van de bijeenkomst
van het Comité Permanent van de FIG te 's-Gravenhage.
a) Topography
b) Geology
c) Soils
d) Hydrology
e) Sedimentation
f) Cadastral Surveys
g) Fish ans Wildlife
h) Vegetation
And the report also expressed that the non-existence of
maps or the inadequacy of those available has serious
consequences in the execution of important develop
ment projects. The planning and launching of such pro
jects without the information provided by adequate
maps will always lead to a waste of money far in excessof
the whole cost of mapping as wel I as to an ultimate waste
of time. The cost of mapping is a minute percentage ofthe
total cost of projects taken in the aggregate and the speed
of modern technical methods of mapping, especially
with the application of aerial photography and photo-
216
NGT GEODESIA 82
