A NET ME a 
INCHES. 
20 I S x, j 
- on ‘ NS «i 
- e ce e = 
= « QA peas x N : 2 
0 I / z Ta > N de | 
Rel f N 
Ë e 8 V Zz X \ D | 
o a = 
  
  
  
oO lO 20 30 40 50 60 FEET 
Fig. 6. SECTIONS AA,BB, CC, ACROSS ROAD IN Fig.5. ORDINATE IS 10 TIMES 
AND ABSCISSA IS THE SAME AS MAP SCALE. POINTS ABC; A,B,C’ 
ARE ROAD HEIGHTS AT THE EAST AND WEST KERBS RESPECTIVELY. 
THE DATUM LINE IS ARBITRARY