Summary: Add the ability to do create offset alignment transitions in spirals.

Description: I wish that Civil 3D did offset alignment transitions correctly on Spirals. I belive they fixed this issue on curves in the 2011 release, but please fix this on spirals.

How Used: To design:

-lane transitions
-barrier flares
-bus bay pullouts

This is pretty much the number one most important tool for highway design (in Canada anyway) and they didn't get it to work.

Feature Affinity: Alignments

Submitted By: nickolas schwab on November 3, 2010