Topcon ES-101 - Page 189

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25. ROUTE SURVEYING
Calculation using BCC as reference:
"ECCETC Calculation"
PROCEDURE Calculation using BTC Point as reference
1. In the second page of the OBS mode
screen, press [MENU], then select
"Road".
2. Select "Parabola" to enter the
Parabola menu then select
"BTCBCC Calc."
3. Input the coordinates of the BTC point
(reference point). Press [OK] to set
the input values.
ECC-ETC
Q Stationing Chainage
Stationing Chainage
ETC
Q
ECC
BP
AZ
Curve length
Road
Occ.Orien.
Line
Circ.Curve
Spiral
Parabola
Parabola
BTC
ECC ETC Calc.
BCC Calc.
Np : 472345.621
Parabola/BTC PT
Ep : 203647.972
RECLOAD OK