25. ROUTE SURVEYING
182
4. Input the coordinates of the IP point,
then press
[OK]
.
• The azimuth angle can be set by
pressing
[AZMTH]
on the second
page.
5. Input curve properties: direction (of
curve), IA (intersection angle), BP-IP
(distance between BP Point and IP
Point), IP-EP (distance between IP
Point and EP Point), Para A1
(parameter A1), Para A2 (parameter
A2), radius (of curve), and St. ofs (BP
Point offset).
6. Press
[OK]
in the screen shown in
step 5 to calculate the coordinates and
follow-up distance of the KA1 point,
KE1 point, KE2 point, and KA2 point.
The results are then displayed on the
screens shown here. Press
{
}/{
}
to
switch between <IA&Tangent/KA1>/
<IA&Tangent/KE1>/<IA&Tangent/
KE2>/<IA&Tangent/KA2>.
7. In the screens for the KA1 point, KE1
point, KE2 point, and KE2 point that
have been found, press
[CENTER]
to
move to centerline peg settings.
Input Sta..ing (stationing to CL peg)
and press
[OK]
to calculate the
coordinates of the arbitrary centerline
peg. The results are then displayed in
this screen.
R i g h t
O K
I P & Ta n
B P - I P
I P - E P
1 4 1 . 4 2 1 m
I A
D i r e c .
1 4 1 . 4 2 1 m
9 0 0 0 ’ 0 0 "
O K
S t . o f s
R a d i u s
6 0 . 0 0 0 m
0 . 0 0 0 m
P a r a A 1
5 0 . 0 0 0
m
P a r a A 2
5 0 . 0 0 0 m
N
E
1 4 2 . 0 5 2
I A & Ta n g e n t / K A 1
1 4 2 . 0 5 2
S t a . . i n g
5 9 . 4 7 1 m
WIDTH
REC
S-O
CENTER
N
E
1 4 2 . 0 5 2
I A & Ta n g e n t / K A 2
2 5 7 . 9 4 8
S t a . . i n g
1 9 5 . 3 8 6 m
WIDTH
REC
S-O
CENTER
.
.
.
O K
I A & Ta n g e n t / C L p e g
S t a . . i n g
1 9 5 . 3 8 6
m
N
E
1 6 7 . 2 8 9
I A & Ta n g e n t / C L p e g
1 7 3 . 5 1 7
S t a . . i n g
1 0 0 . 0 0 0 m
WIDTH
REC
S-O
CENTER