Spectra Precision Survey Pro v4.9 - Manual (Page 219)

[Check…]: checks the road for errors and displays the results in the Roads Report screen.
Add / Edit Super Elevation Screen
[Roads] [Edit Roads] ([New…] or [Edit…]) [Super Elevations] ([Add…] or [Edit…])
The Add / Edit Super Elevation screen allows you to add a super elevation to the road or edit an existing super
elevation.
Start Station: is the location of the beginning of the super elevation on the alignment.
[Length] / [End Station]: is the length of the super elevation measured from the Start Station, or it is the end station,
depending on how the button is toggled.
Note: Keep in mind that the slope at the end of a super elevation will continue down the road unless another super
elevation is entered to change the slope back again. For example, a curve will typically require two super elevations for
each side of the road: one at the beginning of the curve and one at the end.
Slope 1 / 2: is the starting and ending slopes of the road, respectively. The starting slope must match the current slope
of the road at that station.
Parabolic Transition 1 / 2: is the length of the vertical curve that will lead in and out of the super elevation,
respectively. Parabolic transitions are optional parts of a super elevation and result in a smoother change going into
and coming out of a super elevation, similar to how a spiral curve is used with a horizontal curve.
Note: One half of the parabolic transition length will extend before and after the starting point and/or the ending point
of the super elevation. This should be considered when using parabolic transitions near the end of an alignment since
this length cannot extend beyond the limits of the road.
Hinge on [Center] / [Edge]: determines if the super elevation is computed by rotating the road around the centerline
or the road's edge.
Note: When hinging on edge, the road is actually rotated around the end of the first segment of the template that leads
into the super elevation. Only the first segment is adjusted with a super elevation. The length and slope of any
segments beyond the first will not be adjusted from a super elevation.
[Check…]: checks the road for errors and displays the results in the Roads Report screen.
Road Stakeout
[Roads] [Road Stakeout]
The Stake Road screen is used to stake any segment of a road profile at any station.
Use Station Equation: When checked, the current station equation will be applied to the road.
[Equation Settings] : opens the Station Equation screen where a station equation can be configured.
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