700
30
80
70
60
30
40
JU
20
10
fos 1958
Figure 1.
1961 1963 1965
Key
1:10,000
1: 5,000
1970 1990
Topographical and Cadastral Map Capacity
Using Photogrammetrical Methods as Against
the Annual Complete Capacity Over the Whole Country,
Using Various Methods.
1:5,000 scale topographical maps have been
compiled, covering about 40 per cent of the
whole country surface.
Since 1961, a 1:5,000 scale basic topogra-
phical map over the whole country surface
has been compiled, using photogrammetrical
procedures. The cadastral map has been de-
1ived from the above mentioned basic topo-
graphical map, as shown in Figure 2.
The scale of the basic topographical map
has been chosen to answer the cadastral re-
quirements. A 1:10,000 scale was considered
too small and unproper for any zone of the
country. So, all 1:10,000 scale topographi-
cal and cadastral maps have no more updated,
but 1eplaced by the 1:5,000 scale basic to-
pographical and cadastral maps.
The main photogrammetric procedures were:
- Stereoplotting procedure.The stereoplo-
tters, such as, Stereoplanigraphs, Stereo-
metrographs, Autographs have been used to
compile an analogical/graphic map showing
planimetry, hydrography and relief;
- Mixed procedure. Various rectifiers pro-
ducing photomaps further processed as gra-
phical maps by cartographical procedures
have been used for planimetry. The level-
ling has been made up in the field topo-
graphically.
This mixed procedure has been used only
144
over plane and rather rough (undulating)
ground.
Obviously, our country topography justifies
the two photogrammetric procedure uses to
compile both the 1:5,000 scale basic topo-
graphical map and the derived cadastral
one. This scale is also too small for
built-up surfaces showing many topographi-
cal details and having a high economic
value, respectively.
Therefore, 1:2,000 and 1:1,000 scale topo-
graphical maps and the derived cadastral
ones have been compiled over these highly
densed surfaces, using the same technology
given in Figure 2.
Surfaces requiring topographical and cadas-
tral maps at scales larger than a 1:1,000
scale are not the subject of the general
cadastre, but they are related to the spe-
cialized cadastre (mining cadastre, indus-
trial site cadastre, a.s.o.).
Data on topographical and cadastral work
capacity in Romania and the state-of-art
at the end of 1991 are shown in Table 1,
in a synthetical way.
As we have already mentioned, the 1:10,000
scale topographical and cadastral maps had
been replaced by the 1:5,000 scale ones;
this is the reason not to mention them in
the below table.