151
Each recorded format is:
(KEYWORD) nnn, nnn [, nnn]
Here
：
START POINT stake number, E, N
STRAIGHT azimuth, distance
ARC radius, arc length
SPIRAL radius, length
PT E
，
N[
，
A1
，
A2]
(A1, A2: LENGTH)
For example1
：
START 1000.000, 1050.000, 1100.000
STRAIGHT 25.0000, 48.420
SPIRAL 20.000, 20.000
ARC 20.000, 23.141
SPIRAL 20.000, 20.000
STRAIGHT 148.300, 54.679
Example 2
：
START 1000.000, 1050.000, 1100.000
PT 1750.000, 1300.000, 100.000, 80.800
PT 1400.000, 1750.000, 200.000
PT 1800.000, 2000.000
5. VERTICAL CURVE
Input vertical curve data from computer through typical point and stake number, the vertical curve data
should include the height, curve length, and the curve length of start point and terminal point is zero.
Data format is:
Stake number, height, length
For example
：
1000.000, 50.000, 0.000
1300.000, 70.000, 300.000
1800.000, 70.000, 300.000
2300.000, 90.000, 0.000
