I 
EF 
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i 
TABLE N° 2 
TRIANGULATED STRIPS WITH THE INSTRUMENTAL METHOD 
  
  
  
Country 
Organization 
Survey | 
purpose 
map scale 
total area 
  
AUSTRIA 
  
sungswesen 
Bundesamt für 
Eich-U. Vermes- 
large scale 
map 
1.360 km? 
1 : 50.000 
.980 km? 
  
  
BELGIUM 
I.G.M. 
  
1 : 25.000 
10 strips 
  
1 : 20.000 
50 strips 
  
1 : 100.000 
O.E.E.P.E 
100 km 
6 strips 
  
  
MTP 
I.G.C.B. 
Mons 
  
|1 : 5.000 | 
|1 : 2.000 | 
| 
jonly for spe-| 
. | 
\cial purposes 
| | 
| 
Faculté Pol. de |O.E.E.P.E. 
1100 km 
|3 strips 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
strip 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
| | 
| : : | 
| Bridging | | 
Flight Ground control points | 1 | Adjustment of strips | Reached precision 
. . | | 
| Plotting instruments | Bridging characteristics | | 
| 
EN DES | oon We 
: | | i i J i | | | Mean errors 
Flight Overlap ji Total | 1: ; | : Thermical |Qperators Relative Use : 7 Adjutment of | |Use of data Use Use of 
Photo- | Camera altitude | Photo and Auxiliary| Ground aber. Position of | | Plotting Preli- character: ur es Dridein | and of data Time No of | A. distortion | | from | of other 1 | 
Cameras | graphic | calibra- à | S equip- |character- n | control points Type | instru- | minary istics | P ging | absolute from | required | repe- | B. refraction | Planimetry | Altimetry | di | ectronje ] equi | Tests | | 
material tion om n Scare | Sap | ments istics for | in the strip | ments | tests | of | working method | orientation | auxiliary for model | titions | C- film | aux ary | e'ocironic | quip- 1 x | Z 
direction | length | strips | | | | rooms | shifts | of models equipments shrinkage | lequipments| computers | ment | y | 
| | | | | | | | | | | | 
| | | | | | | | | | | 
| | | | | | | | | | | prem p 
| | | | | | | | | | | | 
| ‘ b. 1 | ; Lar ; : | | | | 4 | + 15 
BC. 7 ultra flat 1.200 m |1:12.000 |60 | flat 10 |In a strip of 20|signalized |A. 7 | | | free numerical me- 4 hours La. by compen- Numerical compensation. Ap- | | | + 8cm |+ 15 cm 
f — 10-17 plates a. g. | 112 km | |terrain | |models 5 groups of | | | | | !thod by H. G. Je- | sating pla- proximation of the adjust- | | | | | | 
VW | | | valley flo-| |2 points each | | | | | rie | | | tes |ment curves by equations of | | | | 
| | | ors | | | | | | |30 points each | | | | |second order. Computation in | | | | | 
| | | | | | | |model | | |2 passages taking in conside- | | | | 
| | | | | | | | | | \ration the differences of the | | | | 
| | | | | | | | | coordinates between adjacent | | | | | 
| | | | | | | | strips. | | | | | 
| | | | ; | | | ih | |. | | . | | | | | Ë 
R.C. 5 a |film 13.500 m |1 : 30.000 |60 |2 points each at the |A. 7 + re-| tested by|aircondi-|two ope- free lidem | |2 hours | | idem | idem |IBM. 650 | | |+ 60 cm |+ 60 em 
f — 11,5 | | la. g. | 140 km |beginning in the |cording measuring tioned rators | | | | | | | | 
f — 21 in| | |E-W | | | (middle and at the |coordinate| height grids| room two | | | | | | | | | 
high | | | | lend of a strip of| | counter | and by grid shifts | | | | | | | | | | 
HY ne | | [20 to 22 models. | | -triangula- | | | | | | | | 
| | | |Between these | tion | | | | | | | | | | | 
| | | groups of points | | | | | | | | | | | | | | 
| | | | one height control | | | | | | | | | | | | | 
| | | | | | | | | | | | | | | | 
— - ees | ere =I 17 = = | | € Mm | 7] ur] = | | | | | | | 77] | 
| : | | | | . DEN | | | ele rene : tags | | | | | : : | | | o5 m. 
IS.0.M. plates by means | E-W 1:27.000 60 | flat | |5 points each at Poivilliers | Instrument lone shift I.G.N. - Paris Poivilliers me-| |5 hows: : 2 | LGN. — Paris method | | | | ground control | + 1,25 m | + 1,25 m 
f — 125 lof S.O.M.| | '4 or 5 mo- | | the beginning and BP. adjustment | | method Ithod. | | | | | | | | | | 
| photogo- | | dels 20 km | the end of the at the be-| | | Parallax measu-| | | | | | | | 
iniometer | | | strip. Some other ginning and | |Irements by bz. | | | | | | | | 
| | control points in the end of | | | | | | | | | | 
| > stri | work | | | | | | | 
| | | foe strip. | work | | | | | | | | | 
R.C. 5 [E-W |1 : 40.000 |60 \statoscope|Katanga | idem |A. 5 idem | lidem | Parallax measu-| 13-4 hows | 2 |A. by compen-| Verdin's method | |IBM. 650 | | + 2m + 2m 
f — 11,5 film | | 1120 km | | | S. IV | |rements by bz.| | | sating pla-|Francois’ method | | | | | 
110 models | | |Analytical abso-| | | tes or cams| | | | | | 
| | | | | Ilute orientation | IC. by f varia-| | | | | | 
| | | | tion | | | | | | 
| | | | | | | | | | |lzZ4m |+4m 
idem (film |E-W iidem 60 lidem [idem | Control points are F 34: | | | | | | | 
| | | 120 km | | in three tie strips | | | | | | | | 
| | only: at the begin- | | | | | | 
| ning, in the middle | | | | | | | | 
| and at the end of | | | | | | | | | 
| | the strip | | | | | | | | | 
| | | | | | | | | | 
| | bz 0 | | | | | | | 
| | I.G.N. - Paris | | | | 
| | method | | | | 
Lu I | Im € iles ee | 2 | | I 
| | : " ; | i Dar sus | | | L^ 5 
R.C. 5 (film | 11 : 10.000 | (Control points are |A. 5 1 shift  |free Visual relative o- 6 models e-| 1 |C. by f varia-|Vermeir's method | | | | [S lm [« 0,5 m 
| | 1:7.000 |4 km | at the beginning in A. 7 | orientation. Ana- very two| | tion | | | | | 
| | 5-6 models | the middle and S. IV llytieal absolute |days | | | | | | | | 
| | | at the end of the orientation | | | | 
| |