AutoCAD Civil 3D

[#1]

with the default cross slope 2% in place and no profile targets, section views with subject sub assembly come up at 0%

there's some polyline width targets but no verticals...

any thoughts?

thx!

[#2]

Check the superelevation parameters for the alignment.

[#3]

the alignment has no super parameters, therefore it seems the defaults in the subassemblies should dictate

other thoughts?

thx,

[#4]

I just checked the help and the parameters for the sub.  I don't see a default slope parameter, and the help indicates that the lane slope always comes from the superelevation.  Perhaps we're talking about different subassemblies or different versions?

[#5]

I'm using 2012

In help under "layout mode operation" it sure seems to imply -2%, also in your graphic it shows a -2% slope value...

But I'm guessing you're on the right track.  However I've got a long tangent road and the super wizard simply returns "no curves on alignment" and the tabular editor won't let me add anything.  So I can't simply add 2% normal crown for the length of the roadway, hoping the assembly would kick in.

Any last thoughts?

again much obliged,

[#6 · Accepted solution]

The superelevation parameters won't calculate and the software won't allow you to add anything until you have a design speed set for the alignment.  Open the Alignment Properties dialog, switch to the Design Criteria tab and use the button to add one.

I tried some experimenting with a single tangent alignment like yours and ran into the same problem - without any curves you cannot enter any superelevation values.  I ended up adding a very small three point curve to the end of the alignment then used masking to hide it.  Once that was done I could add the superelevation.

[#7]

you da man!

Thank you!