Trim Alignment with Design Profile Without Breaking Data Shortcut?

[21127015]

Hi,

I’m working in Autodesk Civil 3D and need some advice.

I have an alignment (0+00–10+00) with a design profile (PVI + vertical curves).
The alignment is named and used in Data Shortcuts, so I cannot create a new one.

I need to remove 0+00–3+00 and 9+00–10+00, so the remaining 3+00–9+00 becomes the new alignment and resets to 0+00–6+00.

Requirements:

• Keep the same alignment object

• Preserve all PVI elevations and vertical curves exactly

• Only shift stationing

• Avoid breaking Data Shortcut references

When I trim the alignment, the profile rebuilds and causes issues.

Is there a safe workflow to do this without affecting the design profile?

Thanks.

[VincentSheehan]

One way is to use the Geometry Editor tools to modify the alignment. Once the alignment is set, you can set the new starting station under the Station Control tab on the Alignment Properties.

[21127015]

I used this method, but after resetting the starting station to 0+00, the profile elevations shift and no longer match the original profile.