24. ROUTE SURVEYING
166
8.
Press [OK] in the screen shown in
step 7 to calculate the coordinates and
follow-up distance of the KA1 point,
KE1 point, KE2 point, KA2 point. The
results are then displayed on the
screens shown here. Press {
}/{
} to
switch between <3PT Curve/KA1>/
<3PT Curve/KE1>/<3PT Curve/KE2>/
<3PT Curve/KA2>.
9.
In the screens for the KA1 point, KE1
point, KE2 point, and KA point that
have been found, press [CENTER] to
move to centerline peg settings.
Input Sta..ing (stationing to the CL peg)
and press [OK] to calculate the
coordinates of the arbitrary centerline
peg. The results are then displayed on
the screen.
10. Press {ESC} repeatedly to finish 3
Point calculation and return to
<Road>.
• Press [WIDTH] to move to the width
peg setting screen.
"24.2 Straight Line Calculation"
• The centerline peg can be set-out by
pressing [S-O].
• In the case of a clothoid with no transition curve, the KA1 Point, KE1 Point, and
KA2 Point can be found in step 8.
• In the case of a circular curve, the BCC Point and ECC Point can be found in
step 8.
N
WIDTH
REC
S-O
E
1 4 2 . 0 5 2
3 P T C u r v e / K A 1
1 4 2 . 0 5 2
CENTER
S t a . . i n g
5 9 . 4 7 1 m
・
・
・
N
E
1 4 2 . 0 5 2
3 P T C u r v e / 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
3 P T C u r v e / 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
3 P T C u r v e / C L p e g
1 3 7 . 5 1 7
S t a . . i n g
1 0 0 . 0 0 0 m
WIDTH
REC
S-O
CENTER