Revit adaptive family - A curved bridge with voids

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In today's tutorial, I will be utilizing the adaptive family environment to create a parametric adaptive curvedbridge with voids
Contain a parametric cross-section created with reference points, nested families, 1-point adaptive families, and 3-point adaptive family!
Timecodes
0:00 intro
0:20 Cross-section
4:50 3-point adaptive bridge part
8:40 Putting the bridge superstructure together