Continuation: TABLE N° 5
TRIANGULATED BLOCKS WITH THE INSTRUMEN TAL METHOD
Bridging
Survey Total Flight , Ground Control Points | — UAR ecrire ml —_— Adjustment of blocks
purpose area OO
Plotting instruments Bridging characteristics
No | Country Organization | i TT TTT = rem -— | TTT ETT TT m rome Las — — — - ee Reached precision
Map No of Pl i Number | | | Thermical | | Relative N° and | Use | Adjustment of | Us Js Js
M No Photo- | Camera 10t0- Overlap Auxi- | Ground | and Plotting | Preli- | ,[*02. lOperators| | E position | | qim | No of FHustment oj | Use of data Use Use
scale blocks : ; i | E i: | g | character- | d and | of data a | ^ 9| A. distortion | | | |
| Cameras graphie | calibra- scale and sidelap | lary Icharacter- | position Type instru- | minary isties and | Bridging absolute of points from required | repe- | B. refraction | Planimetry | Altimetry | from | of of other
| 8 and A: Le | ; | of control Tc] arkina ! 3 Y : between An | | FTepo- | 2». Toiraotion | ’ ' | auxiliary | electronic equip-
| material tion and flight | equip isties | points ments tests | of " orking | method | orientation | adjacent auxiliary | for models | titions | C- film | auxihars | etee equip
altitude | block shape | ments | in the block rooms | shifts | of models strips | equipments | | shrinkage |equipments, computers ments
| | | | | 1 |. | | = - : Lm d : = | tite
: an = : | | MÀ | | | fe = fe ; 7
| | | | | | | | | |
| | | | | | | | ! |
11 | GERMANY Institut für An- |1 : 25.000 170 km? | Fairchild| 1 : 22.000 |3 strips of 8| : | | iC. 8 | | |Optical-mechani- | | | |A second de-
gew. Geodäsie | metrogon models each | | | [cal relative orien- | | | |gree equation
| | | | | Itation | | | | lis used for ad-
| | | | | | | \justment.
I —. 1 A : 2 — 5 -— - —] -——— ee - -— - | | SERES — — = | — os ade à ans SSIES RRS = BC tre JL - Le — ] - - — MÀ
| | | / / us 7 ey | |
| Flurbereinigun- | 448 km? I| R.M.K. 1 : 10.000 |90 strips of 5 l1 ground point each |Signalized|C. 8 | | |Optical-mechani- | | | Helmert’s | | Zuse 11 | |Mean error + 9,5 em
gsamt-Bamberg 21-18 | models each | km? | | | | (cal and numerical| | | | | transformation | | | |
|R.M.K. | | | | relative orienta- | | | of each strip. |
15-23 | [tion | | | Discrepancies |
| | | among points
| lon adjacent]
| |Sstrips are ad-|
| | | justed by me-|
| | | ans of a second |
| | | | | | | Helmert's
| | | | | itransformation
| T m :: je —— les el SAE x - - lI - a
16 | JAPAN 15.000 km? See triangulated strips with the instrumental method — Table N° 2
| about
17 |NETHERLANDS | Survey Depar- 482 km? | |Adjustment is It is in re-|
| tment 6 blocks | |done according| search
ito the Scher-|
25 km? [R.C. 7 plates 1: 10.000 |5 strips A. 7 |merhorn’s me-|
| | thod, making |
| 33 km? | R.C. 7 1 :6.000 18 strips G. 8 | | use of x and y|
| differences in|
[70 km? R.C. 7 1 : 13.000 |6 strips A. 7 | | common points|
| lin the lateral
190 km? R.C. 7 | 1 : 10.000 |23 strips | A. 7 | loverlap bet-|
|ween strips. In|
22 km? 2 R.M.K. film 1:5.000 |8 strips C. 8 | two blocks the!
21-18 con- | Jerie's method|
vergent lof adjustment
was applied!
90 km? R.C. 5 film | : 10.000 |9 strips A. 7 |with reasona-
ble results.
KLM. Aero- |1:100.000 14.500 km? |R.C. 5 A. film 1:40.000 Generally APR |Tropical|7 points in x and y|Astrono-|A. 7 The instru- bz 0 Von Gruber and Block adjustment up till 1958 m, and m, 4- 35 m
6.100 m strips are flo- | Forest 160 points in z by|mical ments are numerical relative was done as described by ;
wn in longitu- means of APR checked orientation. When | | Schermerhorn in Photogram- m, - 5to — 10m
dinal direc- and adju- high accuracies are metria 1940. Since 1959 the
tion of the a- sted asked vertical pa- | Analogue Computer of Dr. Je-
1 : 100.000 10.500 km? |R.C. 5 A. film 1:40.000 |rea with a (Tropical idem A. 7 rallaxes are mea- rie is introduced and used fre- idem
6.100 m longitudinal Forest sured in 9 points. quently. For high precision |
overlap of a- | Absolute orienta- each section contains two mo-
bout 60-65% | tion is carried out | dels, for lower precision each |
1 : 25.000 21.000 km? |R.C. 5 A.|film 1 : 30.000 land a lateral Tropical 140 points determi- A. 7 of the first model | section contains more than m,andm, + 13m
4.600 m |overlap of a- | Desert ned by Geodetical | two, even up till 18 models. | ;
bout 15-25% | Survey 220 deter- | | | |For altimetry| m, 2 m
normally and | mined by levelling! | the numerical
25-35% when method is em-
asked. ployed
] : 10.000 105 km? R.C. 5 A. film 1 : 12.000 Tropical|21 horizontal points A. 7 Planimetry on- m, and m, E 07m
1.800 m ‘harbour determined by geo- ly
detic survey Numerical
method
