PARAMETERS AND ACCURACY TOLERANCES OF 
PLANS AND MAPS COMPILATION 
np 5 of the 1SP IV commision was formed 
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du amr — e p m y 
according to point 
iV.5 of the resolutions of the ISP Congress 
at Lisbon in 1964. 
According to the point 1V.3 of the resolutions mentio- 
s recommended to study and examine the tolerances 
of photogrammetric accuracy in order to make use of them in 
production. It was recommended that a thorough information 
about present criteria in individual countries should prece- 
de the investigation. 
The problem of photogrammetric tolerances was discus- 
A 
T 
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at the conference on photogrammetric mapping of urban 
eas in Paris on 20-22" October 1965 and it was stated 
LA + * 
that it had been recommended already by the yth Congress in 
(o 
Le 
“D 
Home /1958/ to work out such criteria. The problem has not 
been solved yet because it was very difficult to reach any 
intemational agreement about values of such tolerances. 
Numerical values of tolerances are valid just in a 
certain period and certain country. ‘herefore it is prefer- 
able to separate the numerical values from formulas for de- 
duction of accuracy tolerances. Then it would be possible 
for each country or organization to choose such values of 
jarameters, that would be agreeable with the accented crite- 
3 CN» If