24. ROUTE SURVEYING
152
PROCEDURE
1.
In the second page of the OBS mode
screen, press [MENU], then select
"Road".
2.
Select "Circ.Curve" to enter the
Circular Curve menu.
3.
Input the coordinates of the BC point
(reference point), then press [OK].
4.
Input the coordinates of the IP point,
then press [OK].
• The azimuth angle to the IP point can
be set by pressing [AZMTH] on the
second page. Press [COORD] to
return to coordinate input.
5.
Enter the curve direction, curve
radius, 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 angle are then displayed in
this screen.
R o a d
O c c . O r i e n .
L i n e
C i r c . C u r v e
S p i r a l
P a r a b o l a
C i r c . C u r v e / C L p e g
S t . o f s
S t a . . i n g
0 . 0 0 0 m
9 0 . 0 0 0 m
D i r e c t . R i g h t
R a d i u s
8 5 . 0 0 0
m
OK
N
E
6 5 . 7 7 9
C i r c . C u r v e / C L p e g
1 7 8 . 7 3 9
Azmth
0 0 0 0 ’ 0 0 "
WIDTH
CENTER
REC
S-O