THE ISSUE
Plotted cross section appear to have incorrect slope values. In this scenario is a single baseline design win a offset.
Subassembly design slopes is set to 2.00% (left and right) on both main Assembly line (left) and the Offset (right).
THE CAUSE OF SLOPE DISCREPANCY:
The corridor design is perpendicular to their base alignment and will only show design slopes correctly at their attached centerline. 
When plotting sections there is a shift in slope value. Below, both sample lines are generated at station 14+50, from their respective baselines. Shown in “A” shown as blue and “B” shown in red.
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Cross Sections from Baseline A |
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Roadway section shown 2%, Offset design shown skewed.
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Cross Sections from Baseline B |
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Roadway section appear as skewed, Offset design shown at 2%.
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Design WILL be 2% on both centerlines because the corridor is perpendicular to the attachment point.
In the end the design is correct, it is just a matter of what baseline is used to create cross sections that is causing a shift.
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