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25. ROUTE SURVEYING
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.
8. Press
{ESC}
repeatedly to finish calculation and return to
<Road>.
• Press
[WIDTH]
to move to the width peg setting screen.
"25.2 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 6.
• In the case of a circular curve, the BC Point and EC Point can be found in step 6.
• Intersection angle input range: 0° < IA < 180°
Route Calculation is used to find the center pegs and width pegs of a route which contains a series of curves.
It is then possible to proceed with setting-out. (The illustration below is an example of a clothoid calculation)
• Route Calculation includes the following:
Curve properties input, curve properties display, automatic calculation of cardinal points, arbitrary point
calculation, and inverse width peg calculation.
• In the Route Calculation menu it is possible to set one route per JOB, each route containing a maximum of
16 curves.
• Up to 600 points, including all center pegs and width pegs, can be calculated using automatic calculation of
cardinal points.
• Route data is retained even when the power has been cut off. However, the route data will be cleared if the
JOB is deleted or memory data is initialized.
25.8 Route Calculation
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
BC2
KA1-1
KE1-1
KA1-2
KE1-2
EC2
Curve 1
Curve 2
No.1
No.2
No.3
No.4
No.5
No.6
No.7
No.8
No.9
SP2
BP
EP
Follow-up distance
Offset
IP point 1
IP point 2