Station equation – Spectra Precision Survey Pro v4.5 Recon and Nomad User Manual User Manual
Page 116
User’s Manual – Conventional Mode
106
11. Tap the Stake CP > button to continue to the next
screen where the catch points at the current station
can be located. This screen is identical to the screens
used in the non-road layout slope staking routine. If
you are not familiar with these screens, refer to Page
159.
12. Once the catch point is staked and stored, you will
return to the screen described above where the
station to stake can be advanced by the station
interval by tapping the Next Sta button and the
process can be repeated to stake the next catch
points.
Station Equation
Some alignments will have a specific location where the stationing
changes. One example of when this might occur is where the
alignment you want to stake merges with another alignment and at
the location where they merge, you want to switch to the stationing
used from the other alignment.
The Station Equation screen is used to define the
location on the alignment where the original stationing,
or the Back stationing changes as well as what the new
stationing will be from that point forward, or the Ahead
stationing.
In most situations, the ahead stationing will increase as
you advance down the road, but you might also have a
situation where the ahead stationing decreases as you
advance forward. The Forward Direction section of the
screen allows you to configure the station equation either
way.
When staking a road that uses a station equation, all
ahead stations are shown with a (2) after it to
differentiate them from the back stations, such as 11+00
(2)
. Likewise, when keying in an ahead station, you must append it
with a (2), otherwise it will be interpreted as a back station.