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3. Input the coordinates of the KA point
(reference point). Press [OK] to set
the input values.
4. Input the coordinates of the IP point,
then press [OK].
• The azimuth angle to the IP point can
be set by pressing [AZNTH] on the
second page. Press [COORD] to
return to coordinate input.
5. Enter the curve direction, parameter
A, offset, and follow-up distance.
6. Press [OK] in the screen shown in
step 5 to calculate the center peg
coordinates. The coordinates and
azimuth are then displayed in this
screen.
7. Press {ESC} three times to finish
spiral calculation and return to
<Road>.
• Press [WIDTH] to move to the width
peg setting screen.
"25.2 Straight Line Calculation"
• The center peg can be set-out by
pressing [S-O]
"15. SETTING-OUT
MEASUREMENT"
• Curve direction: right/left
• Parameter A input range: 0.000 to 9999.999 (m)
• Station offset /Stationing chainage input range:0.000 to 99999.999 (m)
25. ROUTE SURVEYING
S p i r a l / I P
N p :
E p :
LOAD
S p i r a l / C L p e g
D i r e c t .
P a r a A
S t . o f s
S t a . . i n g
S p i r a l / C L p e g
N
E
Azmth
WIDTH
172
1 0 0 . 0 0 0
1 0 0 . 0 0 0
REC
R i g h t
8 0 . 0 0 0
0 . 0 0 0 m
2 5 . 0 0 0 m
1 2 0 . 8 5 9
1 1 3 . 7 5 5
0 0 0 0 ' 0 0 "
REC
S-O
CENTER
OK
m
OK
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