P-2546 
STEP 1- PHOTOGRAPHY AND GROUND CONTROL 
PHOTOGRAPHY 
GROUND CONTROL 
COMPUTER 
VIEWER 
PRECISE ORIENTATION 
-►DATA FOR INDIVIDUAL 
STEREO MODELS 
STEP 2- AERIAL TRIANGULATION 
PHOTOGRAPHY 
ORIENTATION 
DATA N 
HIGHWAY ROUTE 
COMPUTER 
VIEWER 
OUTPUT TAPE: 
PROFILE DATA 
ALONG PROPOSED 
ROUTE 
CROSS-SECTION 
PLOTS 
PRINTED COPY: 
STATION NUMBERS 
AND CUT OR FILL 
VOLUMES 
STEP 3- CROSS-SECTION DATA 
STEP 4- CUT-AND-FILL CALCULATIONS 
Figure 5 
Possible Highway-Planning Operation