Spectra Precision Survey Pro CE v3.6 User Manual - Manual (Page 77)

Road Layout
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4. Super Elevation ending slope value and Widening ending width
value must match the first segment value defined by:
• A following Super Elevation or Widening. (Priority)
• A following Template.
• Exception: if the Widening or Super Elevation is the last
element in the road, it’s end transition value does not have to
match anything.
5. Super Elevation and Widening ending stations must be greater
than their beginning stations.
6. Widenings cannot adjust the first segment horizontal distance to
or from 0.
7. Super Elevations and a Widenings may overlap, are independent,
and do not affect each other.
8. Super Elevations may not overlap other Super Elevations.
• A Super Elevation’s ending station may be equal to a
following Super Elevation’s beginning station.
• A Super Elevation’s beginning station may be equal to a
previous Super Elevation’s ending station.
9. Widenings may not overlap Widenings.
• A Widenings ending station may be equal to a following
Widening’s beginning station.
• A Widening’s beginning station may be equal to a previous
Widening’s ending station.
10. Super Elevations may hinge on edge.
• Hinge on edge can only be used for one side of the road for
any given Super Elevation station range.
• If hinge on edge is used for one side of the road, Super
Elevations must hinge from center on the opposite side of the
road over the same station range.
• Hinge on edge will modify the elevation of the Center Line.