6
PHOTOGRAMMETRIC ENGINEERING
aerial triangulation; plane traversing for
extension of control; block adjustment of
horizontal control.
DL-S: Techniques—Block adjustments for
standard mapping by graticules.
RASC: Instrument—Wild A9, B9, B8, Zeiss
SWA 3-projector multiplex for spatial tri
angulation, 1st to 4th order.
AAMP: Instrument—Wild PUG-2 for point
transfer.
AUSTRIA
Organization
governmental—Bundesamt fur Eichound-
Vermessungswesen
Activities
Production of the topographic map
1:50,000; Cadastral photogrammetry
(1:1,000).
Personnel
Management, 3; Supervision, 6; Profes
sional, none; Technicians, 50; Servicing, 1.
Aerial Triangulation and Plotting
Instruments
Wild A7 + EK3 (3); Wild A8-EK5 (6);
Wild B8 (1); Wild A6 (1); Zeiss C5 (2);
Automatic Readout and Recording Systems
(4)
Aerial Data Recording—cameras
Type
Length
Lens
Format
Range, in.
RC5
210
mm.
Aviotar
18X18
1,000-6,000
RC5
115
mm.
Aviogon
18X18
1,000-5,000
RC7
100
mm.
Aviogon
14X14
1,000-1.500
RC7
170
mm.
Aviotar
14X14
1,000-2,000
RC8
150
mm.
Aviogon
23X23
1,000-5,000
BELGIUM
Organizations
state organizations: Military agencies
(e.g. the Military Geographic Institute);
Public Services (e.g. Ministry of Public
Works); Semi-government services (small
land holdings under the jurisdiction of the
Department of Agriculture).
universities and other educational
institutions: It is impossible to give a com
plete summary of the activities and means
used in the photogrammetric field, consider
ing that some organizations have not supplied
the necessary information. This is also true of
universities and other educational institu
tions which are primarily considered with
scientific research.
Activities
PHOTOGRAMMETRIC ELABORATION OF TOPO
GRAPHIC AND CARTOGRAPHIC PLANS
(1) Topographic plans at 1:5,000, 1:1,000
and 1:2,000 for the study and laying out
of automobile roads, routes, navigable
waterways, high-tension lines, etc.
(2) Plans for rural improvement projects,
usually at 1:1,000.
(3) Plans for urban projects at 1 :5,000.
(4) Belgium’s base map at 1:25,000.
(5) Small-scale maps at 1:50,000-1 :100,000.
The assignment of these tasks among the
different organizations is done as follows:
Activities (1) and (2) are divided among
Government agencies and private companies,
but most of them go to the former due to the
fact that at present these agencies have at
their disposal superior equipment and trained
personnel. Activity (3) is performed exclu
sively by Government agencies, and, more
particularly, by the Ministry of Public
Works. Activities (4) and (5) come exclu
sively under the jurisdiction of the Military
Geographic Institute, which is a Government
agency.
NON-TOPOGRAPHIC USES OF PHOTOGRAMMETRY.
The use of photogrammetry is spreading to
more and more fields, but at the present
time it is only Government agencies which
are making use of it. The following exam
ples may be cited as some of the uses of
photogrammetry: (1) Terrestrial photo
grammetry—making plans of already ex
isting monumental structures and sites in
Belgium, as well as in foreign countries, as
for instance, for the temples of Buhen and
the two Semnas which are menaced by the
waters of the great Aswan dam in Upper
Egypt; (2) Controlling the stability of
engineering works, such as bridges; (3)
Studying water streams and the swell of
the waves; (4) Making hydraulic models;
(5) Measuring true-to-scale the physical
forms of animals (at the University of
Liege), etc.