the title of "general instructions regulating the cadastral service" (algemene
instructie regelende de dienst van het kadaster), referred to as l.K, 1957.
This supersedes the I.K. of 1918.
The old regulations no longer were satisfactory, not only because of
multiple modifications but also as various subjects were either not dealt
with, regulated incompletely or contained in separate orders.
The new I.K. aims at systematic codification of existing arrangements
as well as at giving rules for subjects not so far dealt with.
Use of a loose-leaf system of publication makes it possible to keep the
volume up to date in case of future modification.
5. Technical aspects
a) Manual for technical operations of the Cadastre.
An order of the secretary of state for Finance of 28 May 1956 (no. 41)
introduced a new manual for technical operations of the cadastre, drafted
by a committee whose members were Prof. ir. W, Baarda, D. de Groot
and Ir. F. Harkink.
This manual makes a special point of expressing the relative character of
requirements of accuracy, which are dependent among other factors on the
value and destination of land in the area surveyed. On a sound theoretical
basis a system of assessment has been developed for the surveying and com
puting method to be used which will guarantee satisfactory execution of
cadastral surveys when properly applied. Details may be found in the report
presented to Committee III.
As has been mentioned above, a photogrammctric office of the cadastre
was established on 1 July 1956. Activities of this office primarily are in the
field of mapping for revision of existing surveys. Results obtained so far
promise well for the future. In its first year of existence, the office mapped
about 10,000 ha (24,700 acres), partly at a scale of 1: 1000 and partly at
All reproductions of cadastral maps for internal as well as for outside use
are made by the central reproduction service of the cadastre in Amsterdam.
In 1954 it was decided to make mechanical reproductions on sheet film
of all cadastral plans, called film-plans in the service.
These film-plans are filed in the reproduction service in Amsterdam and
kept up to date by this service, so that it is now possible to supply inexpen
sive reproductions of cadastral maps in the form of diazo prints (whiteprints)
made on demand, after the most recent cadastral data. The film-plan file
will be built up gradually. At present about 7000 out of a total of some 25000
cadastral plans exist in film-plan form.
In consequence of this activity, diazo printing equipment has been com
pleted by a Revolute Comet high-speed printer, and a Klimsch Super Auto-
Horica (KT) reproduction camera was acquired which makes it possible
to produce film-plans eliminating variation due to dimensional instability
in the material of the original cadastral maps.
The possibility is now being considered of making prints from the film-
plans thus produced on paper with an aluminium foil sandwich. These prints
could then replace the original cadastral survey plans.
Since the beginning of 1955 all new cadastral plans produced in the course
of overall revision or of reallotment surveys are made on similar material
with an aluminium sandwich.
Finally mention should be made of a method in use for some time now for
the production of cadastral plans from pencilled sheets produced by photo-
grammetric survey. Photographic copies of these sheets, which do not con
form to the sheet assembly desired in the finished map, are printed in a
contact frame and parts of these prints are then mounted into the desired
assembly on a glass plate displaying a map grid.