No. 
7. Publications 
  
8. Problems Being 
Solved 
9. Subjects to 
Criteria Design 
  
  
  
    
   
    
    
    
    
  
Switzer- 
land 
"Tabellen der Fehlergren- 
zen”. 
"Richtlinien für Anwendung 
der automatischen Datenver- 
arbeitung in der Crundbuch- 
vermessung" - is not speci- 
fied for photogrammetry. 
Separation of systema- 
tic and random errors, 
Tolerances depend upon 
user's requirements.It 
would be important to 
determine the forms of 
specific values (errors 
of mean dimension), 
  
Tanzania 
    
Not published 
  
Thailand 
    
Not published 
Instruments, engineers, 
operators, tasks, map- 
=userse 
  
  
   
   
  
Tunisia 
Pass points and stereo- 
plotting. 
Training of operators 
for photogrammetry. 
  
Union of 
South 
Africa 
    
  
  
   
    
    
   
    
    
   
    
     
  
  
  
  
  
  
  
  
   
  
    
  
.Normal specification 
  
Internal instructions, 
tender documents, e.g. Tri- 
gonometrical survey, Roads 
Department, Water Affairs, 
etc. With ihe exception of 
Trigonometrical Survey, all 
tolerances must have been 
copied from overseas publi- 
cations. 
None, because there is no 
responsible body coordina- 
ting efforis in rescarch. 
Commercial firms do very 
little research, and their 
findings are never publish- 
ed. Universities are too 
decentralised to cooperate 
on limited funds. 
Very definitely, the rei. 
quirements of the clien 
wno generally does not 
know what he wants or 
what to expect from & 
map. There are 2 ex- 
ceptions: Trigonometri- 
cal Survey and Dept.of 
Water Affairs. The lat- 
ler deserves special 
maps 1:6000 or 1:3000 
with 90% accuracy (ver- 
tical) to 45 cm (some- 
times 30cm) for canal 
construction in scarce- 
ly inhabited areas. 
—_ 
  
  
  
  
Dopartmental Specification 
E 16/5 (1961) 
  
  
Standardisation. Tole- 
rances should be ex- 
pressed in terms of 
standard error, where- 
ver possible. 
  
  
  
  
  
  
United 
States 
of 
America