(impossible) (3-67)
FRAME 3-68.
Draw the symbols for:
a. Bypass easy.
b. Bypass difficult.
c. Bypass impossible.
a
b.
c.
(rectangular ; impossible) (3-97)
FRAME 3-98.
The tunnel serial number is inside the tunnel symbol, overhead clearance on the left side of the figure, length on
the right side of the symbol, and width below the figure. As with bridges and underpasses, dimensions are in meters
and we underline the values of overhead clearance and width if they represent an obstruction.
This tunnel symbol represents an arch-shaped tunnel, number ________________,which is ___________ high,
______________________ long, and ______________________ wide.
3-16
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