Spectra Precision Survey Pro v4.5 Recon and Nomad Reference Manual - Manual (Page 394)

Survey Pro Reference Manual
R-386
Parabolic Layout
Curve Parabolic Layout .
The Parabolic Layout screen allows you to compute an elevation at a
specified station, or a station at a specified elevation.
Beg. Grade: is the percent grade at the PVC.
End Grade: is the percent grade at the PVT.
Curve Length: is the horizontal distance between the
PVC and PVT.
PVC Station: is the starting station at the PVC.
PVC Elevation: is the elevation at the PVC.
Solve for: is where you select to solve for an unknown
Elevation, or an unknown Station. The selection made
here determines which of the following choices will be
available.
; Interval : When checked, the Current station can be
incremented by the specified interval by using the Sta -
and Sta + buttons and then re-computed with the Layout button.
Current station: is the station that will be solved for with the Layout
button.
Elevation: is the known elevation for the location(s) on the parabolic
curve where you want to compute the station(s).
Solve : computes the details of the vertical curve.
Sta - : decreases the Current station by the Interval.
Sta + : increases the Current station by the Interval.
Layout : computes either the elevation at the specified Current station
or the station(s) at the specified Elevation.