124
25. ROUTE SURVEYING
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]
• 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)
PROCEDURE Calculation using arbitrary point between KA1 and KE1 as reference
1. In the second page of the OBS mode screen, press
[MENU]
, then select "Road".
2. Select "Spiral" to enter the spiral menu then select "KA
-
KE
2".
3. Input the coordinates of the P point (reference point). Press
[OK]
to set the input values.
4. Input the coordinates of the arbitrary point on the line
tangential to the P point, then press
[OK]
.
• The azimuth angle to the P point can be set by pressing
[AZMTH]
on the second page. Press
[COORD]
to return to
coordinate input.
S p i r a l / C L p e g
S t . o f s
S t a . . i n g
0 . 0 0 0 m
2 5 . 0 0 0 m
D i r e c t .
P a r a A
8 0 . 0 0 0
m
R i g h t
OK
N
E
1 2 0 . 8 5 9
S p i r a l / C L p e g
1 1 3 . 7 5 5
Azmth
0 0 0 0 ’ 0 0 "
WIDTH
CENTER
REC
S-O
K A - K E 1
S p i r a l
K A - K E 2
K E - K A
N p :
E p :
S p i r a l / R e f . P T P
1 0 0 . 0 0 0
O K
1 0 0 . 0 0 0
REC
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